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930708 Commits
Author | SHA1 | Message | Date | |
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Rafael Aquini
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e77132e758 |
kernel/sysctl.c: ignore out-of-range taint bits introduced via kernel.tainted
Users with SYS_ADMIN capability can add arbitrary taint flags to the running kernel by writing to /proc/sys/kernel/tainted or issuing the command 'sysctl -w kernel.tainted=...'. This interface, however, is open for any integer value and this might cause an invalid set of flags being committed to the tainted_mask bitset. This patch introduces a simple way for proc_taint() to ignore any eventual invalid bit coming from the user input before committing those bits to the kernel tainted_mask. Signed-off-by: Rafael Aquini <aquini@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: "Theodore Ts'o" <tytso@mit.edu> Link: http://lkml.kernel.org/r/20200512223946.888020-1-aquini@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Guilherme G. Piccoli
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60c958d8df |
panic: add sysctl to dump all CPUs backtraces on oops event
Usually when the kernel reaches an oops condition, it's a point of no return; in case not enough debug information is available in the kernel splat, one of the last resorts would be to collect a kernel crash dump and analyze it. The problem with this approach is that in order to collect the dump, a panic is required (to kexec-load the crash kernel). When in an environment of multiple virtual machines, users may prefer to try living with the oops, at least until being able to properly shutdown their VMs / finish their important tasks. This patch implements a way to collect a bit more debug details when an oops event is reached, by printing all the CPUs backtraces through the usage of NMIs (on architectures that support that). The sysctl added (and documented) here was called "oops_all_cpu_backtrace", and when set will (as the name suggests) dump all CPUs backtraces. Far from ideal, this may be the last option though for users that for some reason cannot panic on oops. Most of times oopses are clear enough to indicate the kernel portion that must be investigated, but in virtual environments it's possible to observe hypervisor/KVM issues that could lead to oopses shown in other guests CPUs (like virtual APIC crashes). This patch hence aims to help debug such complex issues without resorting to kdump. Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vlastimil Babka <vbabka@suse.cz> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: Matthew Wilcox <willy@infradead.org> Link: http://lkml.kernel.org/r/20200327224116.21030-1-gpiccoli@canonical.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Guilherme G. Piccoli
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0ec9dc9bcb |
kernel/hung_task.c: introduce sysctl to print all traces when a hung task is detected
Commit
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Guilherme G. Piccoli
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f117955a22 |
kernel/watchdog.c: convert {soft/hard}lockup boot parameters to sysctl aliases
After a recent change introduced by Vlastimil's series [0], kernel is able now to handle sysctl parameters on kernel command line; also, the series introduced a simple infrastructure to convert legacy boot parameters (that duplicate sysctls) into sysctl aliases. This patch converts the watchdog parameters softlockup_panic and {hard,soft}lockup_all_cpu_backtrace to use the new alias infrastructure. It fixes the documentation too, since the alias only accepts values 0 or 1, not the full range of integers. We also took the opportunity here to improve the documentation of the previously converted hung_task_panic (see the patch series [0]) and put the alias table in alphabetical order. [0] http://lkml.kernel.org/r/20200427180433.7029-1-vbabka@suse.cz Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Cc: Kees Cook <keescook@chromium.org> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Luis Chamberlain <mcgrof@kernel.org> Link: http://lkml.kernel.org/r/20200507214624.21911-1-gpiccoli@canonical.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka
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4f2f682d89 |
lib/test_sysctl: support testing of sysctl. boot parameter
Testing is done by a new parameter debug.test_sysctl.boot_int which defaults to 0 and it's expected that the tester passes a boot parameter that sets it to 1. The test checks if it's set to 1. To distinguish true failure from parameter not being set, the test checks /proc/cmdline for the expected parameter, and whether test_sysctl is built-in and not a module. [vbabka@suse.cz: skip the new test if boot_int sysctl is not present] Link: http://lkml.kernel.org/r/305af605-1e60-cf84-fada-6ce1ca37c102@suse.cz Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: David Rientjes <rientjes@google.com> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com> Cc: Kees Cook <keescook@chromium.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200427180433.7029-6-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka
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4546cde96f |
tools/testing/selftests/sysctl/sysctl.sh: support CONFIG_TEST_SYSCTL=y
The testing script recommends CONFIG_TEST_SYSCTL=y, but actually only works with CONFIG_TEST_SYSCTL=m. Testing of sysctl setting via boot param however requires the test to be built-in, so make sure the test script supports it. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: David Rientjes <rientjes@google.com> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com> Cc: Kees Cook <keescook@chromium.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200427180433.7029-5-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka
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b467f3ef3c |
kernel/hung_task convert hung_task_panic boot parameter to sysctl
We can now handle sysctl parameters on kernel command line and have infrastructure to convert legacy command line options that duplicate sysctl to become a sysctl alias. This patch converts the hung_task_panic parameter. Note that the sysctl handler is more strict and allows only 0 and 1, while the legacy parameter allowed any non-zero value. But there is little reason anyone would not be using 1. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Kees Cook <keescook@chromium.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: David Rientjes <rientjes@google.com> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200427180433.7029-4-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka
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0a477e1ae2 |
kernel/sysctl: support handling command line aliases
We can now handle sysctl parameters on kernel command line, but historically some parameters introduced their own command line equivalent, which we don't want to remove for compatibility reasons. We can, however, convert them to the generic infrastructure with a table translating the legacy command line parameters to their sysctl names, and removing the one-off param handlers. This patch adds the support and makes the first conversion to demonstrate it, on the (deprecated) numa_zonelist_order parameter. Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: David Rientjes <rientjes@google.com> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200427180433.7029-3-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Vlastimil Babka
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3db978d480 |
kernel/sysctl: support setting sysctl parameters from kernel command line
Patch series "support setting sysctl parameters from kernel command line", v3. This series adds support for something that seems like many people always wanted but nobody added it yet, so here's the ability to set sysctl parameters via kernel command line options in the form of sysctl.vm.something=1 The important part is Patch 1. The second, not so important part is an attempt to clean up legacy one-off parameters that do the same thing as a sysctl. I don't want to remove them completely for compatibility reasons, but with generic sysctl support the idea is to remove the one-off param handlers and treat the parameters as aliases for the sysctl variants. I have identified several parameters that mention sysctl counterparts in Documentation/admin-guide/kernel-parameters.txt but there might be more. The conversion also has varying level of success: - numa_zonelist_order is converted in Patch 2 together with adding the necessary infrastructure. It's easy as it doesn't really do anything but warn on deprecated value these days. - hung_task_panic is converted in Patch 3, but there's a downside that now it only accepts 0 and 1, while previously it was any integer value - nmi_watchdog maps to two sysctls nmi_watchdog and hardlockup_panic, so there's no straighforward conversion possible - traceoff_on_warning is a flag without value and it would be required to handle that somehow in the conversion infractructure, which seems pointless for a single flag This patch (of 5): A recently proposed patch to add vm_swappiness command line parameter in addition to existing sysctl [1] made me wonder why we don't have a general support for passing sysctl parameters via command line. Googling found only somebody else wondering the same [2], but I haven't found any prior discussion with reasons why not to do this. Settings the vm_swappiness issue aside (the underlying issue might be solved in a different way), quick search of kernel-parameters.txt shows there are already some that exist as both sysctl and kernel parameter - hung_task_panic, nmi_watchdog, numa_zonelist_order, traceoff_on_warning. A general mechanism would remove the need to add more of those one-offs and might be handy in situations where configuration by e.g. /etc/sysctl.d/ is impractical. Hence, this patch adds a new parse_args() pass that looks for parameters prefixed by 'sysctl.' and tries to interpret them as writes to the corresponding sys/ files using an temporary in-kernel procfs mount. This mechanism was suggested by Eric W. Biederman [3], as it handles all dynamically registered sysctl tables, even though we don't handle modular sysctls. Errors due to e.g. invalid parameter name or value are reported in the kernel log. The processing is hooked right before the init process is loaded, as some handlers might be more complicated than simple setters and might need some subsystems to be initialized. At the moment the init process can be started and eventually execute a process writing to /proc/sys/ then it should be also fine to do that from the kernel. Sysctls registered later on module load time are not set by this mechanism - it's expected that in such scenarios, setting sysctl values from userspace is practical enough. [1] https://lore.kernel.org/r/BL0PR02MB560167492CA4094C91589930E9FC0@BL0PR02MB5601.namprd02.prod.outlook.com/ [2] https://unix.stackexchange.com/questions/558802/how-to-set-sysctl-using-kernel-command-line-parameter [3] https://lore.kernel.org/r/87bloj2skm.fsf@x220.int.ebiederm.org/ Signed-off-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Reviewed-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Kees Cook <keescook@chromium.org> Acked-by: Michal Hocko <mhocko@suse.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Ivan Teterevkov <ivan.teterevkov@nutanix.com> Cc: Michal Hocko <mhocko@kernel.org> Cc: David Rientjes <rientjes@google.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: "Guilherme G . Piccoli" <gpiccoli@canonical.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Christian Brauner <christian.brauner@ubuntu.com> Link: http://lkml.kernel.org/r/20200427180433.7029-1-vbabka@suse.cz Link: http://lkml.kernel.org/r/20200427180433.7029-2-vbabka@suse.cz Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Manfred Spraul
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01f39c1c11 |
xarray.h: correct return code documentation for xa_store_{bh,irq}()
__xa_store() and xa_store() document that the functions can fail, and that the return code can be an xa_err() encoded error code. xa_store_bh() and xa_store_irq() do not document that the functions can fail and that they can also return xa_err() encoded error codes. Thus: Update the documentation. Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Matthew Wilcox <willy@infradead.org> Link: http://lkml.kernel.org/r/20200430111424.16634-1-manfred@colorfullife.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Rafael Aquini
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db38d5c106 |
kernel: add panic_on_taint
Analogously to the introduction of panic_on_warn, this patch introduces a kernel option named panic_on_taint in order to provide a simple and generic way to stop execution and catch a coredump when the kernel gets tainted by any given flag. This is useful for debugging sessions as it avoids having to rebuild the kernel to explicitly add calls to panic() into the code sites that introduce the taint flags of interest. For instance, if one is interested in proceeding with a post-mortem analysis at the point a given code path is hitting a bad page (i.e. unaccount_page_cache_page(), or slab_bug()), a coredump can be collected by rebooting the kernel with 'panic_on_taint=0x20' amended to the command line. Another, perhaps less frequent, use for this option would be as a means for assuring a security policy case where only a subset of taints, or no single taint (in paranoid mode), is allowed for the running system. The optional switch 'nousertaint' is handy in this particular scenario, as it will avoid userspace induced crashes by writes to sysctl interface /proc/sys/kernel/tainted causing false positive hits for such policies. [akpm@linux-foundation.org: tweak kernel-parameters.txt wording] Suggested-by: Qian Cai <cai@lca.pw> Signed-off-by: Rafael Aquini <aquini@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Dave Young <dyoung@redhat.com> Cc: Baoquan He <bhe@redhat.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kees Cook <keescook@chromium.org> Cc: Randy Dunlap <rdunlap@infradead.org> Cc: "Theodore Ts'o" <tytso@mit.edu> Cc: Adrian Bunk <bunk@kernel.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Laura Abbott <labbott@redhat.com> Cc: Jeff Mahoney <jeffm@suse.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: Takashi Iwai <tiwai@suse.de> Link: http://lkml.kernel.org/r/20200515175502.146720-1-aquini@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Orson Zhai
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ceabef7dd7 |
dynamic_debug: add an option to enable dynamic debug for modules only
Instead of enabling dynamic debug globally with CONFIG_DYNAMIC_DEBUG, CONFIG_DYNAMIC_DEBUG_CORE will only enable core function of dynamic debug. With the DYNAMIC_DEBUG_MODULE defined for any modules, dynamic debug will be tied to them. This is useful for people who only want to enable dynamic debug for kernel modules without worrying about kernel image size and memory consumption is increasing too much. [orson.zhai@unisoc.com: v2] Link: http://lkml.kernel.org/r/1587408228-10861-1-git-send-email-orson.unisoc@gmail.com Signed-off-by: Orson Zhai <orson.zhai@unisoc.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Acked-by: Petr Mladek <pmladek@suse.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Jason Baron <jbaron@akamai.com> Cc: Randy Dunlap <rdunlap@infradead.org> Link: http://lkml.kernel.org/r/1586521984-5890-1-git-send-email-orson.unisoc@gmail.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Giuseppe Scrivano
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e1eb26fa62 |
ipc/namespace.c: use a work queue to free_ipc
the reason is to avoid a delay caused by the synchronize_rcu() call in kern_umount() when the mqueue mount is freed. the code: #define _GNU_SOURCE #include <sched.h> #include <error.h> #include <errno.h> #include <stdlib.h> int main() { int i; for (i = 0; i < 1000; i++) if (unshare(CLONE_NEWIPC) < 0) error(EXIT_FAILURE, errno, "unshare"); } goes from Command being timed: "./ipc-namespace" User time (seconds): 0.00 System time (seconds): 0.06 Percent of CPU this job got: 0% Elapsed (wall clock) time (h:mm:ss or m:ss): 0:08.05 to Command being timed: "./ipc-namespace" User time (seconds): 0.00 System time (seconds): 0.02 Percent of CPU this job got: 96% Elapsed (wall clock) time (h:mm:ss or m:ss): 0:00.03 Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Paul E. McKenney <paulmck@kernel.org> Reviewed-by: Waiman Long <longman@redhat.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Manfred Spraul <manfred@colorfullife.com> Link: http://lkml.kernel.org/r/20200225145419.527994-1-gscrivan@redhat.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Jules Irenge
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4b78e2013a |
ipc/msg: add missing annotation for freeque()
Sparse reports a warning at freeque() warning: context imbalance in freeque() - unexpected unlock The root cause is the missing annotation at freeque() Add the missing __releases(RCU) annotation Add the missing __releases(&msq->q_perm) annotation Signed-off-by: Jules Irenge <jbi.octave@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Boqun Feng <boqun.feng@gmail.com> Cc: Lu Shuaibing <shuaibinglu@126.com> Cc: Nathan Chancellor <natechancellor@gmail.com> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Link: http://lkml.kernel.org/r/20200403160505.2832-2-jbi.octave@gmail.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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SeongJae Park
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92fb1db26e |
mm/page_idle.c: skip offline pages
'Idle page tracking' users can pass random pfn that might be mapped to an offline page. To avoid accessing such pages, this commit modifies the 'page_idle_get_page()' to use 'pfn_to_online_page()' instead of 'pfn_valid()' and 'pfn_to_page()' combination, so that the pfn mapped to an offline page can be skipped. Reported-by: David Hildenbrand <david@redhat.com> Signed-off-by: SeongJae Park <sjpark@amazon.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Pankaj Gupta <pankaj.gupta.linux@gmail.com> Link: http://lkml.kernel.org/r/20200605092502.18018-2-sjpark@amazon.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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63d72b93f2 |
vfs: clean up posix_acl_permission() logic aroudn MAY_NOT_BLOCK
posix_acl_permission() does not care about MAY_NOT_BLOCK, and in fact the permission logic internally must not check that bit (it's only for upper layers to decide whether they can block to do IO to look up the acl information or not). But the way the code was written, it _looked_ like it cared, since the function explicitly did not mask that bit off. But it has exactly two callers: one for when that bit is set, which first clears the bit before calling posix_acl_permission(), and the other call site when that bit was clear. So stop the silly games "saving" the MAY_NOT_BLOCK bit that must not be used for the actual permission test, and that currently is pointlessly cleared by the callers when the function itself should just not care. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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5fc475b749 |
vfs: do not do group lookup when not necessary
Rasmus Villemoes points out that the 'in_group_p()' tests can be a noticeable expense, and often completely unnecessary. A common situation is that the 'group' bits are the same as the 'other' bits wrt the permissions we want to test. So rewrite 'acl_permission_check()' to not bother checking for group ownership when the permission check doesn't care. For example, if we're asking for read permissions, and both 'group' and 'other' allow reading, there's really no reason to check if we're part of the group or not: either way, we'll allow it. Rasmus says: "On a bog-standard Ubuntu 20.04 install, a workload consisting of compiling lots of userspace programs (i.e., calling lots of short-lived programs that all need to get their shared libs mapped in, and the compilers poking around looking for system headers - lots of /usr/lib, /usr/bin, /usr/include/ accesses) puts in_group_p around 0.1% according to perf top. System-installed files are almost always 0755 (directories and binaries) or 0644, so in most cases, we can avoid the binary search and the cost of pulling the cred->groups array and in_group_p() .text into the cpu cache" Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Dave Airlie
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efe792f39d |
Merge https://gitlab.freedesktop.org/drm/msm into drm-next-msm-5.8
* new gpu support: a405, a640, a650 * dpu: color processing support * mdp5: support for msm8x36 (the thing with a405) * some prep work for per-context pagetables (ie the part that does not depend on in-flight iommu patches) * last but not least, UABI update for submit ioctl to support syncobj (from Bas) Signed-off-by: Dave Airlie <airlied@redhat.com> From: Rob Clark <robdclark@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/ <CAF6AEGvLMubYPeKZ0rvOp45=+h4HZz-K9XNf0CXYcvPDVbnqLA@mail.gmail.com |
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Dave Airlie
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8d286e2ff4 |
Merge tag 'drm-intel-next-fixes-2020-06-04' of git://anongit.freedesktop.org/drm/drm-intel into drm-next
- Includes gvt-next-fixes-2020-05-28 - Use after free fix for display global state. - Whitelisting context-local timestamp on Gen9 and two scheduler fixes with deps (Cc: stable) - Removal of write flag from sysfs files where ineffective Signed-off-by: Dave Airlie <airlied@redhat.com> From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200604150454.GA59322@jlahtine-desk.ger.corp.intel.com |
||
Dave Airlie
|
fa3fa2228c |
Merge tag 'amd-drm-fixes-5.8-2020-06-04' of git://people.freedesktop.org/~agd5f/linux into drm-next
amd-drm-fixes-5.8-2020-06-04 amdgpu: - Prevent hwmon accesses while GPU is in reset - CTF interrupt fix - Backlight fix for renoir - Fix for display sync groups - Display bandwidth validation workaround Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexdeucher@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200604181900.4609-1-alexander.deucher@amd.com |
||
Linus Torvalds
|
af7b480103 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from David Miller: - Fix the build with certain Kconfig combinations for the Chelsio inline TLS device, from Rohit Maheshwar and Vinay Kumar Yadavi. - Fix leak in genetlink, from Cong Lang. - Fix out of bounds packet header accesses in seg6, from Ahmed Abdelsalam. - Two XDP fixes in the ENA driver, from Sameeh Jubran - Use rwsem in device rename instead of a seqcount because this code can sleep, from Ahmed S. Darwish. - Fix WoL regressions in r8169, from Heiner Kallweit. - Fix qed crashes in kdump mode, from Alok Prasad. - Fix the callbacks used for certain thermal zones in mlxsw, from Vadim Pasternak. * git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (35 commits) net: dsa: lantiq_gswip: fix and improve the unsupported interface error mlxsw: core: Use different get_trend() callbacks for different thermal zones net: dp83869: Reset return variable if PHY strap is read rhashtable: Drop raw RCU deref in nested_table_free cxgb4: Use kfree() instead kvfree() where appropriate net: qed: fixes crash while running driver in kdump kernel vsock/vmci: make vmci_vsock_transport_cb() static net: ethtool: Fix comment mentioning typo in IS_ENABLED() net: phy: mscc: fix Serdes configuration in vsc8584_config_init net: mscc: Fix OF_MDIO config check net: marvell: Fix OF_MDIO config check net: dp83867: Fix OF_MDIO config check net: dp83869: Fix OF_MDIO config check net: ethernet: mvneta: fix MVNETA_SKB_HEADROOM alignment ethtool: linkinfo: remove an unnecessary NULL check net/xdp: use shift instead of 64 bit division crypto/chtls:Fix compile error when CONFIG_IPV6 is disabled inet_connection_sock: clear inet_num out of destroy helper yam: fix possible memory leak in yam_init_driver lan743x: Use correct MAC_CR configuration for 1 GBit speed ... |
||
Linus Torvalds
|
52e0ad262c |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next
Pull sparc updates from David Miller: - Rework the sparc32 page tables so that READ_ONCE(*pmd), as done by generic code, operates on a word sized element. From Will Deacon. - Some scnprintf() conversions, from Chen Zhou. - A pin_user_pages() conversion from John Hubbard. - Several 32-bit ptrace register handling fixes and such from Al Viro. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next: fix a braino in "sparc32: fix register window handling in genregs32_[gs]et()" sparc32: mm: Only call ctor()/dtor() functions for first and last user sparc32: mm: Disable SPLIT_PTLOCK_CPUS sparc32: mm: Don't try to free page-table pages if ctor() fails sparc32: register memory occupied by kernel as memblock.memory sparc: remove unused header file nfs_fs.h sparc32: fix register window handling in genregs32_[gs]et() sparc64: fix misuses of access_process_vm() in genregs32_[sg]et() oradax: convert get_user_pages() --> pin_user_pages() sparc: use scnprintf() in show_pciobppath_attr() in vio.c sparc: use scnprintf() in show_pciobppath_attr() in pci.c tty: vcc: Fix error return code in vcc_probe() sparc32: mm: Reduce allocation size for PMD and PTE tables sparc32: mm: Change pgtable_t type to pte_t * instead of struct page * sparc32: mm: Restructure sparc32 MMU page-table layout sparc32: mm: Fix argument checking in __srmmu_get_nocache() sparc64: Replace zero-length array with flexible-array sparc: mm: return true,false in kern_addr_valid() |
||
David S. Miller
|
4f8ad73898 | Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc | ||
Martin Blumenstingl
|
4d3da2d8d9 |
net: dsa: lantiq_gswip: fix and improve the unsupported interface error
While trying to use the lantiq_gswip driver on one of my boards I made
a mistake when specifying the phy-mode (because the out-of-tree driver
wants phy-mode "gmii" or "mii" for the internal PHYs). In this case the
following error is printed multiple times:
Unsupported interface: 3
While it gives at least a hint at what may be wrong it is not very user
friendly. Print the human readable phy-mode and also which port is
configured incorrectly (this hardware supports ports 0..6) to improve
the cases where someone made a mistake.
Fixes:
|
||
Dave Airlie
|
3f29eacc3e |
Merge branch 'linux-5.8' of git://github.com/skeggsb/linux into drm-next
- HDMI/DP audio HDA fixes - display hang fix for Volta/Turing - GK20A regression fix. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Ben Skeggs <skeggsb@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/ <CACAvsv4PW6tAZY6Uvrhi5OV+4rDXvrtNcoq2w_i35YajByj+ew@mail.gmail.com |
||
Vadim Pasternak
|
2dc2f76005 |
mlxsw: core: Use different get_trend() callbacks for different thermal zones
The driver registers three different types of thermal zones: For the
ASIC itself, for port modules and for gearboxes.
Currently, all three types use the same get_trend() callback which does
not work correctly for the ASIC thermal zone. The callback assumes that
the device data is of type 'struct mlxsw_thermal_module', whereas for
the ASIC thermal zone 'struct mlxsw_thermal' is passed as device data.
Fix this by using one get_trend() callback for the ASIC thermal zone and
another for the other two types.
Fixes:
|
||
David S. Miller
|
9049a40c85 | Merge branch 'for-davem' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs | ||
Linus Torvalds
|
cf0c97f148 |
This is the bulk of pin control changes for the v5.8
kernel cycle. New drivers: - Intel Jasper Lake support. - NXP Freescale i.MX8DXL support. - Qualcomm SM8250 support. - Renesas R8A7742 SH-PFC support. Driver improvements: - Severe cleanup and modernization of the MCP23s08 driver. - Mediatek driver modularized. - Setting config supported in the Meson driver. - Wakeup support for the Broadcom BCM7211. -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEElDRnuGcz/wPCXQWMQRCzN7AZXXMFAl7dZC4ACgkQQRCzN7AZ XXOEZg/9F4dCwXmMxMxbS1c7DSHxsJTEHYKDDgAZ0L36N2DHihpMGbVQFzEe9khK xeSS8M4ecACYzw3FJGESaEC+fmTZ7zxr60SR++iyJJptooKAmcA00d2M/4VQ4ggN P/nXFEsGJvQ7nNJSO95wXr5K8aVkQW7rjo1cnblXH0c9dYOp+ItyodIytKcdWeZ9 QfWSovYd+Oqra0braxx+pM/iTFVf6eOoCFZ8gkXB35pORsZ4Vl/e8pXMHXc3wUUm S1b6e3fifLiEGANvCEXz47/f3lUmUY26FsCSCAt92tHChq/p6coIKKvKyP4723PF R2L03iO8jMfsX+HwL2ivblSZ/lFExEgalWET56aogZClRQVynC0NMOnDEdluYGaT XJZPib9sRqQOF36+G9Bcy4zlqjj1LoHwqpiCdAhtj3AACTKdoLjDK0sJ3Wn5E8lJ QfIb+oqOmOGNHN/fdSsxsNM1ptOqNb/sW2Gk4O+X9tYzG17m16oZEVkrv4FNhmeC mePl/7aX+aMoHkEYxvt9tF3kRDFbndcuHdNFtRxq0Tx9jELiR91ySjjs9bUr2Vnl kkihtfIMZngQjBgHe2PNlcF2t7gSIgSBVEvwxslcUlx3XvVEDP16RKJV52aL80uu ev4k0h72CTxI1lZuNuW4cJYDKF/wJPqPtQ8+GQfOZxG7yuM8tOc= =3UGk -----END PGP SIGNATURE----- Merge tag 'pinctrl-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl Pull pin control updates from Linus Walleij: "This is the bulk of pin control changes for the v5.8 kernel cycle. It's just really boring this time. Zero core changes. Just linear development, cleanups and misc noncritical fixes. Some new drivers for very new Qualcomm and Intel chips. New drivers: - Intel Jasper Lake support. - NXP Freescale i.MX8DXL support. - Qualcomm SM8250 support. - Renesas R8A7742 SH-PFC support. Driver improvements: - Severe cleanup and modernization of the MCP23s08 driver. - Mediatek driver modularized. - Setting config supported in the Meson driver. - Wakeup support for the Broadcom BCM7211" * tag 'pinctrl-v5.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (72 commits) pinctrl: sprd: Fix the incorrect pull-up definition pinctrl: pxa: pxa2xx: Remove 'pxa2xx_pinctrl_exit()' which is unused and broken pinctrl: freescale: imx: Use 'devm_of_iomap()' to avoid a resource leak in case of error in 'imx_pinctrl_probe()' pinctrl: freescale: imx: Fix an error handling path in 'imx_pinctrl_probe()' pinctrl: sirf: add missing put_device() call in sirfsoc_gpio_probe() pinctrl: imxl: Fix an error handling path in 'imx1_pinctrl_core_probe()' pinctrl: bcm2835: Add support for wake-up interrupts pinctrl: bcm2835: Match BCM7211 compatible string dt-bindings: pinctrl: Document optional BCM7211 wake-up interrupts dt-bindings: pinctrl: Document 7211 compatible for brcm, bcm2835-gpio.txt dt-bindings: pinctrl: stm32: Add missing interrupts property pinctrl: at91-pio4: Add COMPILE_TEST support pinctrl: Fix return value about devm_platform_ioremap_resource() MAINTAINERS: Renesas Pin Controllers are supported dt-bindings: pinctrl: ocelot: Add Sparx5 SoC support pinctrl: ocelot: Fix GPIO interrupt decoding on Jaguar2 pinctrl: ocelot: Remove instance number from pin functions pinctrl: ocelot: Always register GPIO driver dt-bindings: pinctrl: rockchip: update example pinctrl: amd: Add ACPI dependency ... |
||
Linus Torvalds
|
e8dff03aef |
RTC for 5.8
Subsystem: - new VL flag for backup switch over Drivers: - ingenic: only support device tree - pcf2127: report battery switch over, handle nowayout -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEycoQi/giopmpPgB12wIijOdRNOUFAl7dWSkACgkQ2wIijOdR NOXGbQ//cSTxUJbuYBNi/VCV7J3/khGlyoQQqDsru/tzuEwXHGBoG2LRNQMOauWd 2Osg61VQj4IY+WCqp4+ivn5H0K26y1PPKkt+UmrlRgkl0eeDFWmY4ejpziZ85D7Z kDlzcUi3YWkd6m4YSJJrtdCcKljBMIEXb/PEKKK9y6dkrcG5990N8JchpmkCzrjx fTPVIOfxu43msDc5b8egUDzPYnNbFw3ERAeasr6/EGTz+ksCspXtvWDk/mJzum0G FiermTkO499Dr66Nf0AS3ex9SvEoqH+kd9KA1CKii5OlYEl7K9sI+eSmTQ1EutZO L5WAvvQdW8UkARo6R4HAobhwK27pL+wpzUljbyXxt940/RTeqp82kl7rnH+0ihU7 tTbR2Vu+uwWrfQbPkCCj0TJmqIHgam5/Vhn1+ZR2f4U2JIlPvvHoLRVKO0oP7XKK 1ZDcP8zc9V2LQ2G2M1/ec6eOmoGW3EZDnKp4hcv9mnEiePSvVn04t5sa83NjNs4R e+awVY1x5pFwoXu99gjlfQTV2kTyaA7Jywp6gIO7BKaw/Ci3+d3tlpowfsDH+UVI WwKxNNqmuNXqoIep0zqUhqXHNIizKxGEk8wE4mr8HP2SlGJ+lUHAyrTTdpLeinN1 5qTEPT3BhjExSFfDZQyWV3+CzKMvxtfFA4/Ca/0iSoaqzMZpm1E= =dsKr -----END PGP SIGNATURE----- Merge tag 'rtc-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "Not much this cycle apart from the ingenic rtc driver rework. The fixes are mainly minor issues reported by coccinelle rather than real world issues. Subsystem: - new VL flag for backup switch over Drivers: - ingenic: only support device tree - pcf2127: report battery switch over, handle nowayout" * tag 'rtc-5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: (29 commits) rtc: pcf2127: watchdog: handle nowayout feature rtc: fsl-ftm-alarm: fix freeze(s2idle) failed to wake rtc: abx80x: Provide debug feedback for invalid dt properties rtc: abx80x: Add Device Tree matching table rtc: rv3028: Add missed check for devm_regmap_init_i2c() rtc: mpc5121: Use correct return value for mpc5121_rtc_probe() rtc: goldfish: Use correct return value for goldfish_rtc_probe() rtc: snvs: Add necessary clock operations for RTC APIs rtc: snvs: Make SNVS clock always prepared rtc: ingenic: Reset regulator register in probe rtc: ingenic: Fix masking of error code rtc: ingenic: Remove unused fields from private structure rtc: ingenic: Set wakeup params in probe rtc: ingenic: Enable clock in probe rtc: ingenic: Use local 'dev' variable in probe rtc: ingenic: Only support probing from devicetree rtc: mc13xxx: fix a double-unlock issue rtc: stmp3xxx: update contact email rtc: max77686: Use single-byte writes on MAX77620 rtc: pcf2127: report battery switch over ... |
||
Linus Torvalds
|
787f74fc50 |
Intel Icelake NTB support, Intel driver bug fixes, and lots of bug fixes
for ntb tests -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEoE9b9c3U2JxX98mqbmZLrHqL0iMFAl7a3aUACgkQbmZLrHqL 0iPmmA//fZ5PuqEfAjsCQjxQjVsvh195pBPL4vcwtpu9R7xDKztoRqOMzHbmvLXK db+E9erWPFESjJFMqH4u3kAVIGvKSRkbjsVH7rhhdgabjB6IAs4nJr+ucvOD1fp+ OO3AJl8cedJurj5yUhCEJ13lT3Y/90YqJLdtqkAi0m9iABH7J54SmxZosVj1XUBt PoIyF1PGXCeVv+v0VTjRsm67kGL4K3dggOPJFPZ56trhLshOlCrcaRt/MzVVMAud P9ZU9h02sp62E87anUhe6TsR6G0BgRbOvvX39VtxoaJjfoMFEBGFzEPEj+3V1tfa jeSM3jE9sCvbFFxuarvyHNoCRY4lntGjzP8lM1sCatSjp5mJnEFSC3tSGyY+cAFr LB2How8Bikrq/PQ/H768UXL9ChYv+T5hsHRcz4yllKkyl9OwJAUpqlvBMJUNIMu3 Yvrhj9oG6EH28dK7nuzNxXIPPjBgkbetCK/jhfn6XZT9jP2p5iXv4qA3bjCsn11E 0cPCXVwMAkwcgVaTuPWdNFILXGfijcwfpBlsgHak0MvureQz+ANVJqWpZwJyWQB5 aiLr0xzW9qTVfX+vGAopHAoFD2If1eS/wTqqXF5TYbZT8/cuwjzGEl8aIPEP1ldz Jyy/tVK97Lk8S6ZXceQucugAy4CKAIcRmlulkxYjH6fbVf2jyfo= =cp25 -----END PGP SIGNATURE----- Merge tag 'ntb-5.8' of git://github.com/jonmason/ntb Pull NTB updates from Jon Mason: "Intel Icelake NTB support, Intel driver bug fixes, and lots of bug fixes for ntb tests" * tag 'ntb-5.8' of git://github.com/jonmason/ntb: NTB: ntb_test: Fix bug when counting remote files NTB: perf: Fix race condition when run with ntb_test NTB: perf: Fix support for hardware that doesn't have port numbers NTB: perf: Don't require one more memory window than number of peers NTB: ntb_pingpong: Choose doorbells based on port number NTB: Fix the default port and peer numbers for legacy drivers NTB: Revert the change to use the NTB device dev for DMA allocations NTB: ntb_tool: reading the link file should not end in a NULL byte ntb_perf: avoid false dma unmap of destination address ntb_perf: increase sleep time from one milli sec to one sec ntb_tool: pass correct struct device to dma_alloc_coherent ntb_perf: pass correct struct device to dma_alloc_coherent ntb: hw: remove the code that sets the DMA mask NTB: correct ntb_peer_spad_addr and ntb_peer_spad_read comment typos ntb: intel: fix static declaration ntb: intel: add hw workaround for NTB BAR alignment ntb: intel: Add Icelake (gen4) support for Intel NTB NTB: Fix static check warning in perf_clear_test include/ntb: Fix typo in ntb_unregister_device description |
||
Linus Torvalds
|
a2b447066c |
Tag summary
+ Features - Replace zero-length array with flexible-array - add a valid state flags check - add consistency check between state and dfa diff encode flags - add apparmor subdir to proc attr interface - fail unpack if profile mode is unknown - add outofband transition and use it in xattr match - ensure that dfa state tables have entries + Cleanups - Use true and false for bool variable - Remove semicolon - Clean code by removing redundant instructions - Replace two seq_printf() calls by seq_puts() in aa_label_seq_xprint() - remove duplicate check of xattrs on profile attachment - remove useless aafs_create_symlink + Bug fixes - Fix memory leak of profile proxy - fix introspection of of task mode for unconfined tasks - fix nnp subset test for unconfined - check/put label on apparmor_sk_clone_security() -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEE7cSDD705q2rFEEf7BS82cBjVw9gFAl7dUf4ACgkQBS82cBjV w9j8rA//R3qbVeiN3SJtxLhiF3AAdP2cVbZ/mAhQLwYObI6flb1bliiahJHRf8Ey FaVb4srOH8NlmzNINZehXOvD3UDwX/sbpw8h0Y0JolO+v1m3UXkt/eRoMt6gRz7I jtaImY1/V+G4O5rV5fGA1HQI8Geg+W9Abt32d16vyKIIpnBS/Pfv8ppM0NcHCZ4G e8935T/dMNK5K0Y7HNb1nMjyzEr0LtEXvXznBOrGVpCtDQ45m0/NBvAqpfhuKsVm FE5Na8rgtiB9sU72LaoNXNr8Y5LVgkXPmBr/e1FqZtF01XEarKb7yJDGOLrLpp1o rGYpY9DQSBT/ZZrwMaLFqCd1XtnN1BAmhlM6TXfnm25ArEnQ49ReHFc7ZHZRSTZz LWVBD6atZbapvqckk1SU49eCLuGs5wmRj/CmwdoQUbZ+aOfR68zF+0PANbP5xDo4 862MmeMsm8JHndeCelpZQRbhtXt0t9MDzwMBevKhxV9hbpt4g8DcnC5tNUc9AnJi qJDsMkytYhazIW+/4MsnLTo9wzhqzXq5kBeE++Xl7vDE/V+d5ocvQg73xtwQo9sx LzMlh3cPmBvOnlpYfnONZP8pJdjDAuESsi/H5+RKQL3cLz7NX31CLWR8dXLBHy80 Dvxqvy84Cf7buigqwSzgAGKjDI5HmeOECAMjpLbEB2NS9xxQYuk= =U7d2 -----END PGP SIGNATURE----- Merge tag 'apparmor-pr-2020-06-07' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor Pull apparmor updates from John Johansen: "Features: - Replace zero-length array with flexible-array - add a valid state flags check - add consistency check between state and dfa diff encode flags - add apparmor subdir to proc attr interface - fail unpack if profile mode is unknown - add outofband transition and use it in xattr match - ensure that dfa state tables have entries Cleanups: - Use true and false for bool variable - Remove semicolon - Clean code by removing redundant instructions - Replace two seq_printf() calls by seq_puts() in aa_label_seq_xprint() - remove duplicate check of xattrs on profile attachment - remove useless aafs_create_symlink Bug fixes: - Fix memory leak of profile proxy - fix introspection of of task mode for unconfined tasks - fix nnp subset test for unconfined - check/put label on apparmor_sk_clone_security()" * tag 'apparmor-pr-2020-06-07' of git://git.kernel.org/pub/scm/linux/kernel/git/jj/linux-apparmor: apparmor: Fix memory leak of profile proxy apparmor: fix introspection of of task mode for unconfined tasks apparmor: check/put label on apparmor_sk_clone_security() apparmor: Use true and false for bool variable security/apparmor/label.c: Clean code by removing redundant instructions apparmor: Replace zero-length array with flexible-array apparmor: ensure that dfa state tables have entries apparmor: remove duplicate check of xattrs on profile attachment. apparmor: add outofband transition and use it in xattr match apparmor: fail unpack if profile mode is unknown apparmor: fix nnp subset test for unconfined apparmor: remove useless aafs_create_symlink apparmor: add proc subdir to attrs apparmor: add consistency check between state and dfa diff encode flags apparmor: add a valid state flags check AppArmor: Remove semicolon apparmor: Replace two seq_printf() calls by seq_puts() in aa_label_seq_xprint() |
||
Roberto Sassu
|
8b8c704d91 |
ima: Remove __init annotation from ima_pcrread()
Commit |
||
John Johansen
|
3622ad25d4 |
apparmor: Fix memory leak of profile proxy
When the proxy isn't replaced and the profile is removed, the proxy
is being leaked resulting in a kmemleak check message of
unreferenced object 0xffff888077a3a490 (size 16):
comm "apparmor_parser", pid 128041, jiffies 4322684109 (age 1097.028s)
hex dump (first 16 bytes):
03 00 00 00 00 00 00 00 b0 92 fd 4b 81 88 ff ff ...........K....
backtrace:
[<0000000084d5daf2>] aa_alloc_proxy+0x58/0xe0
[<00000000ecc0e21a>] aa_alloc_profile+0x159/0x1a0
[<000000004cc9ce15>] unpack_profile+0x275/0x1c40
[<000000007332b3ca>] aa_unpack+0x1e7/0x7e0
[<00000000e25e31bd>] aa_replace_profiles+0x18a/0x1d10
[<00000000350d9415>] policy_update+0x237/0x650
[<000000003fbf934e>] profile_load+0x122/0x160
[<0000000047f7b781>] vfs_write+0x139/0x290
[<000000008ad12358>] ksys_write+0xcd/0x170
[<000000001a9daa7b>] do_syscall_64+0x70/0x310
[<00000000b9efb0cf>] entry_SYSCALL_64_after_hwframe+0x49/0xb3
Make sure to cleanup the profile's embedded label which will result
on the proxy being properly freed.
Fixes:
|
||
John Johansen
|
dd2569fbb0 |
apparmor: fix introspection of of task mode for unconfined tasks
Fix two issues with introspecting the task mode.
1. If a task is attached to a unconfined profile that is not the
ns->unconfined profile then. Mode the mode is always reported
as -
$ ps -Z
LABEL PID TTY TIME CMD
unconfined 1287 pts/0 00:00:01 bash
test (-) 1892 pts/0 00:00:00 ps
instead of the correct value of (unconfined) as shown below
$ ps -Z
LABEL PID TTY TIME CMD
unconfined 2483 pts/0 00:00:01 bash
test (unconfined) 3591 pts/0 00:00:00 ps
2. if a task is confined by a stack of profiles that are unconfined
the output of label mode is again the incorrect value of (-) like
above, instead of (unconfined). This is because the visibile
profile count increment is skipped by the special casing of
unconfined.
Fixes:
|
||
Mauricio Faria de Oliveira
|
3b646abc5b |
apparmor: check/put label on apparmor_sk_clone_security()
Currently apparmor_sk_clone_security() does not check for existing label/peer in the 'new' struct sock; it just overwrites it, if any (with another reference to the label of the source sock.) static void apparmor_sk_clone_security(const struct sock *sk, struct sock *newsk) { struct aa_sk_ctx *ctx = SK_CTX(sk); struct aa_sk_ctx *new = SK_CTX(newsk); new->label = aa_get_label(ctx->label); new->peer = aa_get_label(ctx->peer); } This might leak label references, which might overflow under load. Thus, check for and put labels, to prevent such errors. Note this is similarly done on: static int apparmor_socket_post_create(struct socket *sock, ...) ... if (sock->sk) { struct aa_sk_ctx *ctx = SK_CTX(sock->sk); aa_put_label(ctx->label); ctx->label = aa_get_label(label); } ... Context: ------- The label reference count leak is observed if apparmor_sock_graft() is called previously: this sets the 'ctx->label' field by getting a reference to the current label (later overwritten, without put.) static void apparmor_sock_graft(struct sock *sk, ...) { struct aa_sk_ctx *ctx = SK_CTX(sk); if (!ctx->label) ctx->label = aa_get_current_label(); } And that is the case on crypto/af_alg.c:af_alg_accept(): int af_alg_accept(struct sock *sk, struct socket *newsock, ...) ... struct sock *sk2; ... sk2 = sk_alloc(...); ... security_sock_graft(sk2, newsock); security_sk_clone(sk, sk2); ... Apparently both calls are done on their own right, especially for other LSMs, being introduced in 2010/2014, before apparmor socket mediation in 2017 (see commits [1,2,3,4]). So, it looks OK there! Let's fix the reference leak in apparmor. Test-case: --------- Exercise that code path enough to overflow label reference count. $ cat aa-refcnt-af_alg.c #include <stdio.h> #include <string.h> #include <unistd.h> #include <sys/socket.h> #include <linux/if_alg.h> int main() { int sockfd; struct sockaddr_alg sa; /* Setup the crypto API socket */ sockfd = socket(AF_ALG, SOCK_SEQPACKET, 0); if (sockfd < 0) { perror("socket"); return 1; } memset(&sa, 0, sizeof(sa)); sa.salg_family = AF_ALG; strcpy((char *) sa.salg_type, "rng"); strcpy((char *) sa.salg_name, "stdrng"); if (bind(sockfd, (struct sockaddr *) &sa, sizeof(sa)) < 0) { perror("bind"); return 1; } /* Accept a "connection" and close it; repeat. */ while (!close(accept(sockfd, NULL, 0))); return 0; } $ gcc -o aa-refcnt-af_alg aa-refcnt-af_alg.c $ ./aa-refcnt-af_alg <a few hours later> [ 9928.475953] refcount_t overflow at apparmor_sk_clone_security+0x37/0x70 in aa-refcnt-af_alg[1322], uid/euid: 1000/1000 ... [ 9928.507443] RIP: 0010:apparmor_sk_clone_security+0x37/0x70 ... [ 9928.514286] security_sk_clone+0x33/0x50 [ 9928.514807] af_alg_accept+0x81/0x1c0 [af_alg] [ 9928.516091] alg_accept+0x15/0x20 [af_alg] [ 9928.516682] SYSC_accept4+0xff/0x210 [ 9928.519609] SyS_accept+0x10/0x20 [ 9928.520190] do_syscall_64+0x73/0x130 [ 9928.520808] entry_SYSCALL_64_after_hwframe+0x3d/0xa2 Note that other messages may be seen, not just overflow, depending on the value being incremented by kref_get(); on another run: [ 7273.182666] refcount_t: saturated; leaking memory. ... [ 7273.185789] refcount_t: underflow; use-after-free. Kprobes: ------- Using kprobe events to monitor sk -> sk_security -> label -> count (kref): Original v5.7 (one reference leak every iteration) ... (af_alg_accept+0x0/0x1c0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd2 ... (af_alg_release_parent+0x0/0xd0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd4 ... (af_alg_accept+0x0/0x1c0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd3 ... (af_alg_release_parent+0x0/0xd0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd5 ... (af_alg_accept+0x0/0x1c0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd4 ... (af_alg_release_parent+0x0/0xd0) label=0xffff8a0f36c25eb0 label_refcnt=0x11fd6 Patched v5.7 (zero reference leak per iteration) ... (af_alg_accept+0x0/0x1c0) label=0xffff9ff376c25eb0 label_refcnt=0x593 ... (af_alg_release_parent+0x0/0xd0) label=0xffff9ff376c25eb0 label_refcnt=0x594 ... (af_alg_accept+0x0/0x1c0) label=0xffff9ff376c25eb0 label_refcnt=0x593 ... (af_alg_release_parent+0x0/0xd0) label=0xffff9ff376c25eb0 label_refcnt=0x594 ... (af_alg_accept+0x0/0x1c0) label=0xffff9ff376c25eb0 label_refcnt=0x593 ... (af_alg_release_parent+0x0/0xd0) label=0xffff9ff376c25eb0 label_refcnt=0x594 Commits: ------- [1] commit |
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Linus Torvalds
|
9aa900c809 |
Char/Misc driver patches for 5.8-rc1
Here is the large set of char/misc driver patches for 5.8-rc1 Included in here are: - habanalabs driver updates, loads - mhi bus driver updates - extcon driver updates - clk driver updates (approved by the clock maintainer) - firmware driver updates - fpga driver updates - gnss driver updates - coresight driver updates - interconnect driver updates - parport driver updates (it's still alive!) - nvmem driver updates - soundwire driver updates - visorbus driver updates - w1 driver updates - various misc driver updates In short, loads of different driver subsystem updates along with the drivers as well. All have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXtzkHw8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+yldOwCgus/DgpnI1UL4z+NdBxJrAXtkPmgAn2sgTUea i5RblCmcVMqvHaGtYkY+ =tScN -----END PGP SIGNATURE----- Merge tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc Pull char/misc driver updates from Greg KH: "Here is the large set of char/misc driver patches for 5.8-rc1 Included in here are: - habanalabs driver updates, loads - mhi bus driver updates - extcon driver updates - clk driver updates (approved by the clock maintainer) - firmware driver updates - fpga driver updates - gnss driver updates - coresight driver updates - interconnect driver updates - parport driver updates (it's still alive!) - nvmem driver updates - soundwire driver updates - visorbus driver updates - w1 driver updates - various misc driver updates In short, loads of different driver subsystem updates along with the drivers as well. All have been in linux-next for a while with no reported issues" * tag 'char-misc-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (233 commits) habanalabs: correctly cast u64 to void* habanalabs: initialize variable to default value extcon: arizona: Fix runtime PM imbalance on error extcon: max14577: Add proper dt-compatible strings extcon: adc-jack: Fix an error handling path in 'adc_jack_probe()' extcon: remove redundant assignment to variable idx w1: omap-hdq: print dev_err if irq flags are not cleared w1: omap-hdq: fix interrupt handling which did show spurious timeouts w1: omap-hdq: fix return value to be -1 if there is a timeout w1: omap-hdq: cleanup to add missing newline for some dev_dbg /dev/mem: Revoke mappings when a driver claims the region misc: xilinx-sdfec: convert get_user_pages() --> pin_user_pages() misc: xilinx-sdfec: cleanup return value in xsdfec_table_write() misc: xilinx-sdfec: improve get_user_pages_fast() error handling nvmem: qfprom: remove incorrect write support habanalabs: handle MMU cache invalidation timeout habanalabs: don't allow hard reset with open processes habanalabs: GAUDI does not support soft-reset habanalabs: add print for soft reset due to event habanalabs: improve MMU cache invalidation code ... |
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Linus Torvalds
|
f558b8364e |
Driver core patches for 5.8-rc1
Here is the set of driver core patches for 5.8-rc1. Not all that huge this release, just a number of small fixes and updates: - software node fixes - kobject now sends KOBJ_REMOVE when it is removed from sysfs, not when it is removed from memory (which could come much later) - device link additions and fixes based on testing on more devices - firmware core cleanups - other minor changes, full details in the shortlog All have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXtzmXg8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ymaAQCfZZ9prH3AMLF7DIkG3vMw0njLXt0An2FxrKYU wetHRG4KL9vTkdz7+TqU =t5LE -----END PGP SIGNATURE----- Merge tag 'driver-core-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core Pull driver core updates from Greg KH: "Here is the set of driver core patches for 5.8-rc1. Not all that huge this release, just a number of small fixes and updates: - software node fixes - kobject now sends KOBJ_REMOVE when it is removed from sysfs, not when it is removed from memory (which could come much later) - device link additions and fixes based on testing on more devices - firmware core cleanups - other minor changes, full details in the shortlog All have been in linux-next for a while with no reported issues" * tag 'driver-core-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (23 commits) driver core: Update device link status correctly for SYNC_STATE_ONLY links firmware_loader: change enum fw_opt to u32 software node: implement software_node_unregister() kobject: send KOBJ_REMOVE uevent when the object is removed from sysfs driver core: Remove unnecessary is_fwnode_dev variable in device_add() drivers property: When no children in primary, try secondary driver core: platform: Fix spelling errors in platform.c driver core: Remove check in driver_deferred_probe_force_trigger() of: platform: Batch fwnode parsing when adding all top level devices driver core: fw_devlink: Add support for batching fwnode parsing driver core: Look for waiting consumers only for a fwnode's primary device driver core: Move code to the right part of the file Revert "Revert "driver core: Set fw_devlink to "permissive" behavior by default"" drivers: base: Fix NULL pointer exception in __platform_driver_probe() if a driver developer is foolish firmware_loader: move fw_fallback_config to a private kernel symbol namespace driver core: Add missing '\n' in log messages driver/base/soc: Use kobj_to_dev() API Add documentation on meaning of -EPROBE_DEFER driver core: platform: remove redundant assignment to variable ret debugfs: Use the correct style for SPDX License Identifier ... |
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Linus Torvalds
|
80ef846e99 |
Staging/IIO driver patches for 5.8-rc1
Here is the large set of staging and IIO driver changes for 5.8-rc1 Nothing major, but a lot of new IIO drivers are included in here, along with other core iio cleanups and changes. On the staging driver front, again, nothing noticable. No new deletions or additions, just a ton of tiny cleanups all over the tree done by a lot of different people. Most coding style, but many actual real fixes and cleanups that are nice to see. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXtzoAQ8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ym9FwCgkW8WZJGnvHLjuuG8C01azCEh/KUAoJRji8jK 4zCG8NxAPFsQ1QP2SZPq =jEyw -----END PGP SIGNATURE----- Merge tag 'staging-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging Pull staging/IIO driver updates from Greg KH: "Here is the large set of staging and IIO driver changes for 5.8-rc1 Nothing major, but a lot of new IIO drivers are included in here, along with other core iio cleanups and changes. On the staging driver front, again, nothing noticable. No new deletions or additions, just a ton of tiny cleanups all over the tree done by a lot of different people. Most coding style, but many actual real fixes and cleanups that are nice to see. All of these have been in linux-next for a while with no reported issues" * tag 'staging-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging: (618 commits) staging: rtl8723bs: Use common packet header constants staging: sm750fb: Add names to proc_setBLANK args staging: most: usb: init return value in default path of switch/case expression staging: vchiq: Get rid of VCHIQ_SERVICE_OPENEND callback reason staging: vchiq: move vchiq_release_message() into vchiq staging: vchi: Get rid of C++ guards staging: vchi: Get rid of not implemented function declarations staging: vchi: Get rid of vchiq_status_to_vchi() staging: vchi: Get rid of vchi_service_set_option() staging: vchi: Merge vchi_msg_queue() into vchi_queue_kernel_message() staging: vchiq: Move copy callback handling into vchiq staging: vchi: Get rid of vchi_queue_user_message() staging: vchi: Get rid of vchi_service_destroy() staging: most: usb: use function sysfs_streq staging: most: usb: add missing put_device calls staging: most: usb: use correct error codes staging: most: usb: replace code to calculate array index staging: most: usb: don't use error path to exit function on success staging: most: usb: move allocation of URB out of critical section staging: most: usb: return 0 instead of variable ... |
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Linus Torvalds
|
081096d98b |
TTY/Serial driver updates for 5.8-rc1
Here is the tty and serial driver updates for 5.8-rc1 Nothing huge at all, just a lot of little serial driver fixes, updates for new devices and features, and other small things. Full details are in the shortlog. Note, you will get a conflict merging with your tree in the Documentation/devicetree/bindings/serial/rs485.yaml file, but it should be pretty obvious what to do. If not, I'm sure Rob will clean it all up afterwards :) All of these have been in linux-next with no issues for a while. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXtzpCg8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ylRxACgjGtOKPjahONL4lWd0F8ZYEcyw7sAn34woBCO BDUV3kolrRQ4OYNJWsHP =TvqG -----END PGP SIGNATURE----- Merge tag 'tty-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty Pull tty/serial driver updates from Greg KH: "Here is the tty and serial driver updates for 5.8-rc1 Nothing huge at all, just a lot of little serial driver fixes, updates for new devices and features, and other small things. Full details are in the shortlog. All of these have been in linux-next with no issues for a while" * tag 'tty-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (67 commits) tty: serial: qcom_geni_serial: Add 51.2MHz frequency support tty: serial: imx: clear Ageing Timer Interrupt in handler serial: 8250_fintek: Add F81966 Support sc16is7xx: Add flag to activate IrDA mode dt-bindings: sc16is7xx: Add flag to activate IrDA mode serial: 8250: Support rs485 bus termination GPIO serial: 8520_port: Fix function param documentation dt-bindings: serial: Add binding for rs485 bus termination GPIO vt: keyboard: avoid signed integer overflow in k_ascii serial: 8250: Enable 16550A variants by default on non-x86 tty: hvc_console, fix crashes on parallel open/close serial: imx: Initialize lock for non-registered console sc16is7xx: Read the LSR register for basic device presence check sc16is7xx: Allow sharing the IRQ line sc16is7xx: Use threaded IRQ sc16is7xx: Always use falling edge IRQ tty: n_gsm: Fix bogus i++ in gsm_data_kick tty: n_gsm: Remove unnecessary test in gsm_print_packet() serial: stm32: add no_console_suspend support tty: serial: fsl_lpuart: Use __maybe_unused instead of #if CONFIG_PM_SLEEP ... |
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Linus Torvalds
|
e611c0fe31 |
USB/PHY driver updates for 5.8-rc1
Here are the large set of USB and PHY driver updates for 5.8-rc1. Nothing huge, just lots of little things: - USB gadget fixes and additions all over the place - new PHY drivers - PHY driver fixes and updates - XHCI driver updates - musb driver updates - more USB-serial driver ids added - various USB quirks added - thunderbolt minor updates and fixes - typec updates and additions Full details are in the shortlog. All of these have been in linux-next for a while with no reported issues. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> -----BEGIN PGP SIGNATURE----- iG0EABECAC0WIQT0tgzFv3jCIUoxPcsxR9QN2y37KQUCXtzqVA8cZ3JlZ0Brcm9h aC5jb20ACgkQMUfUDdst+ynftwCfeanyI6TR5AdfJVZN50B6/ySvVwcAn07i9VRX tnt2kz0UqReYpLt0wyJ7 =YP7o -----END PGP SIGNATURE----- Merge tag 'usb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb Pull USB/PHY driver updates from Greg KH: "Here are the large set of USB and PHY driver updates for 5.8-rc1. Nothing huge, just lots of little things: - USB gadget fixes and additions all over the place - new PHY drivers - PHY driver fixes and updates - XHCI driver updates - musb driver updates - more USB-serial driver ids added - various USB quirks added - thunderbolt minor updates and fixes - typec updates and additions All of these have been in linux-next for a while with no reported issues" * tag 'usb-5.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (245 commits) usb: dwc3: meson-g12a: fix USB2 PHY initialization on G12A and A1 SoCs usb: dwc3: meson-g12a: fix error path when fetching the reset line fails Revert "dt-bindings: usb: qcom,dwc3: Convert USB DWC3 bindings" Revert "dt-bindings: usb: qcom,dwc3: Add compatible for SC7180" Revert "dt-bindings: usb: qcom,dwc3: Introduce interconnect properties for Qualcomm DWC3 driver" USB: serial: ch341: fix lockup of devices with limited prescaler USB: serial: ch341: add basis for quirk detection CDC-ACM: heed quirk also in error handling USB: serial: option: add Telit LE910C1-EUX compositions usb: musb: Fix runtime PM imbalance on error usb: musb: jz4740: Prevent lockup when CONFIG_SMP is set usb: musb: mediatek: add reset FADDR to zero in reset interrupt handle usb: musb: use true for 'use_dma' usb: musb: start session in resume for host port usb: musb: return -ESHUTDOWN in urb when three-strikes error happened USB: serial: qcserial: add DW5816e QDL support thunderbolt: Add trivial .shutdown usb: dwc3: keystone: Turn on USB3 PHY before controller dt-bindings: usb: ti,keystone-dwc3.yaml: Add USB3.0 PHY property dt-bindings: usb: convert keystone-usb.txt to YAML ... |
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Al Viro
|
9d964e1b82 |
fix a braino in "sparc32: fix register window handling in genregs32_[gs]et()"
lost npc in PTRACE_SETREGSET, breaking PTRACE_SETREGS as well
Fixes:
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Dan Murphy
|
4e2905adac |
net: dp83869: Reset return variable if PHY strap is read
When the PHY's strap register is read to determine if lane swapping is
needed the phy_read_mmd returns the value back into the ret variable.
If the call to read the strap fails the failed value is returned. If
the call to read the strap is successful then ret is possibly set to a
non-zero positive number. Without reseting the ret value to 0 this will
cause the parse DT function to return a failure.
Fixes:
|
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Herbert Xu
|
4a3084aaa8 |
rhashtable: Drop raw RCU deref in nested_table_free
This patch replaces some unnecessary uses of rcu_dereference_raw in the rhashtable code with rcu_dereference_protected. The top-level nested table entry is only marked as RCU because it shares the same type as the tree entries underneath it. So it doesn't need any RCU protection. We also don't need RCU protection when we're freeing a nested RCU table because by this stage we've long passed a memory barrier when anyone could change the nested table. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linus Torvalds
|
3b69e8b457 |
Fix for arch/sh build regression with newer binutils, removal of SH5,
fixes for module exports, and misc cleanup. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iQEcBAABAgAGBQJe28l0AAoJELcQ+SIFb8HaKFMH/0T7tHfWit4+efmeDLhfrewd Fq9lLnEGmLy82AZqmd730gvD2ckbjUCm0ikKC79sCd14r3bIB1RCDKfXbY6rB3uI EDijbkzsjfOYG9ZAiDYTIbyrM2u2/1PzFiYTxHVDtPLbCPGfacbcfrDL+u143IXP ez/RHGLE6uYDvKi0Y0/VDKgMCW9bNlcEkL2/tKFVg2cipDi2Lfmi3Jss/id+5uOI N8XeZoyHjyWr7GeRZwN/hNPLDvLY//Uf5q6RB9VrTsN4Vrja7kjWMZkgsGkmGbNo f6BbLenq+KMfOSJrIzS3MgTRinoqRF5S518pkbGtgRQn0rZKfd6h85DG15RlPGk= =Ktnp -----END PGP SIGNATURE----- Merge tag 'sh-for-5.8' of git://git.libc.org/linux-sh Pull arch/sh updates from Rich Felker: "Fix for arch/sh build regression with newer binutils, removal of SH5, fixes for module exports, and misc cleanup" * tag 'sh-for-5.8' of git://git.libc.org/linux-sh: sh: remove sh5 support sh: add missing EXPORT_SYMBOL() for __delay sh: Convert ins[bwl]/outs[bwl] macros to inline functions sh: Convert iounmap() macros to inline functions sh: Add missing DECLARE_EXPORT() for __ashiftrt_r4_xx sh: configs: Cleanup old Kconfig IO scheduler options arch/sh: vmlinux.scr sh: Replace CONFIG_MTD_M25P80 with CONFIG_MTD_SPI_NOR in sh7757lcr_defconfig sh: sh4a: Bring back tmu3_device early device |
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Linus Torvalds
|
b170290c28 |
Kconfig updates for v5.8
- allow only 'config', 'comment', 'if' statements inside 'choice' since the other statements are not sensible inside 'choice' and should be grammatical error - support LMC_KEEP env variable for 'make local{yes,mod}config' to preserve some CONFIG options - deprecate 'make kvmconfig' and 'make xenconfig' in favor of 'make kvm_guest.config' and 'make xen.config' - code cleanups -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAl7bsBkVHG1hc2FoaXJv eUBrZXJuZWwub3JnAAoJED2LAQed4NsGjgwP/17odsg7DK15nFXiT0A7A1VzMZpf 4oOjRo7W+J3zplEzLAFCf759Cov+MeqEdApzTWc+10bLXh5UlWBN8A1wof8dt5SV uQZMDO90uqB/sIwTZc8PJrn+9PiGl8D0L/WHMBOvz1AYaK8SBnB6xO0Xf/mn/AFX xpjxOhkUjTO59sNn8X3xjgDROkLp/iD3aC0sxo88U30n1aoV2surkPbG2/X879M4 Q+sW1phPqXoC9WsOJHmsWOx5IdZoj2hy0z4uWGGjXuZwimNQd2PnhuhRg0xfp+WN 8OYK4B74gnTAAFh2AyQu89DcNCiBYMGwRlrPrsvszODsUZjjgAPWouDpvrwVHf+R fZDTPtccQK4BELxIg3lbPCQPfzTDXfsxcK7R4X2AizdLKsh6yI5mdqGR0XcCxCyH gEtBNDHsMt4X4g4Z916cvewCmr5dmz+gAKem83j5fPhmVddMCcBgd6W8Dj9NUzGs cloHhs9gOGt0w+xBWGftcWARW4/wTf+Dn0yJ6QAaobq/QwMLFDWv8rDy0xzLttjA ISNetBUofolmvKiLqgblwY66yCgDzLJhNhR0L8jEJTMGq02Bi76BwnADlr3vnraw Bx4tmAoVGx+JXw/TrEY7Be5u/Ji/ofv7YTN9RZZOD9m5Om5HD3zFbtCXN+/8t83D 2iD1imSJ0TQId36y =FlOD -----END PGP SIGNATURE----- Merge tag 'kconfig-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kconfig updates from Masahiro Yamada: - allow only 'config', 'comment', 'if' statements inside 'choice' since the other statements are not sensible inside 'choice' and should be grammatical error - support LMC_KEEP env variable for 'make local{yes,mod}config' to preserve some CONFIG options - deprecate 'make kvmconfig' and 'make xenconfig' in favor of 'make kvm_guest.config' and 'make xen.config' - code cleanups * tag 'kconfig-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: kconfig: announce removal of 'kvmconfig' and 'xenconfig' shorthands streamline_config.pl: add LMC_KEEP to preserve some kconfigs kconfig: allow only 'config', 'comment', and 'if' inside 'choice' kconfig: tests: remove randconfig test for choice in choice kconfig: do not assign a variable in the return statement kconfig: do not use OR-assignment for zero-cleared structure |
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Linus Torvalds
|
cff11abeca |
Kbuild updates for v5.8
- fix warnings in 'make clean' for ARCH=um, hexagon, h8300, unicore32 - ensure to rebuild all objects when the compiler is upgraded - exclude system headers from dependency tracking and fixdep processing - fix potential bit-size mismatch between the kernel and BPF user-mode helper - add the new syntax 'userprogs' to build user-space programs for the target architecture (the same arch as the kernel) - compile user-space sample code under samples/ for the target arch instead of the host arch - make headers_install fail if a CONFIG option is leaked to user-space - sanitize the output format of scripts/checkstack.pl - handle ARM 'push' instruction in scripts/checkstack.pl - error out before modpost if a module name conflict is found - error out when multiple directories are passed to M= because this feature is broken for a long time - add CONFIG_DEBUG_INFO_COMPRESSED to support compressed debug info - a lot of cleanups of modpost - dump vmlinux symbols out into vmlinux.symvers, and reuse it in the second pass of modpost - do not run the second pass of modpost if nothing in modules is updated - install modules.builtin(.modinfo) by 'make install' as well as by 'make modules_install' because it is useful even when CONFIG_MODULES=n - add new command line variables, GZIP, BZIP2, LZOP, LZMA, LZ4, and XZ to allow users to use alternatives such as pigz, pbzip2, etc. -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAl7brm0VHG1hc2FoaXJv eUBrZXJuZWwub3JnAAoJED2LAQed4NsGjeEP/Rrf8H9cp/Tq+ALQCBycI3W5ZEHg n2EqprZkVP2MlOV0d+8b9t4PdZf6E5Wmfv26sMaBAhl6X1KQI/0NgPMnTINvy5jJ Q2SMhj9y8Gwr3XKFu9Hd/0U+Sax5rz+LmY84tdF95dXzPIUWjAEVnbmN+ofY6T++ sNf2YGNFSR6iiqr3uCYA0hHZmpKlfhVgDPAdncWa5aadSsuQb79nZQWefGeVEsuD HrISpwnkhBc0qY1xyWry6agE92xWmkNkdjKq6A7peguZL02XySWLRWjyHoiiaPOB 6U4urKs/NSXqPgxGxwZthhwERHryC3+g4s8wRBDKE6ISRWKBBA2ruHpgdF5h/utu re1ZP2qRcAt8NBFynr4MEb2AU0mYkv7iEgfLJ7NUCRlMOtqrn5RFwnS4r8ReyQp5 1UM11RbPhYgYjM5g9hBHJ7nK944/kfvy1/4jF4I1+M5O7QL6f00pu3r2bBIa/65g DWrNOpIliKG27GgnRlxi7HgLfxs9etFcXTpHO0ymgnMmlz+7FQsdceR9qqybGU9o yBWw6zculMQjb3E+k0DTnE5kLWsycbua921wxM9ABSxRmJi7WciNF73RdLUIBoAY VUbwrP2aIpdL+2uyX6RqdTaWzEBpW8omszr46aQ96pX+RiqMrPvJRLaA/tr3ZH8g tdHenJPWdHSaOcO4 =GKe5 -----END PGP SIGNATURE----- Merge tag 'kbuild-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - fix warnings in 'make clean' for ARCH=um, hexagon, h8300, unicore32 - ensure to rebuild all objects when the compiler is upgraded - exclude system headers from dependency tracking and fixdep processing - fix potential bit-size mismatch between the kernel and BPF user-mode helper - add the new syntax 'userprogs' to build user-space programs for the target architecture (the same arch as the kernel) - compile user-space sample code under samples/ for the target arch instead of the host arch - make headers_install fail if a CONFIG option is leaked to user-space - sanitize the output format of scripts/checkstack.pl - handle ARM 'push' instruction in scripts/checkstack.pl - error out before modpost if a module name conflict is found - error out when multiple directories are passed to M= because this feature is broken for a long time - add CONFIG_DEBUG_INFO_COMPRESSED to support compressed debug info - a lot of cleanups of modpost - dump vmlinux symbols out into vmlinux.symvers, and reuse it in the second pass of modpost - do not run the second pass of modpost if nothing in modules is updated - install modules.builtin(.modinfo) by 'make install' as well as by 'make modules_install' because it is useful even when CONFIG_MODULES=n - add new command line variables, GZIP, BZIP2, LZOP, LZMA, LZ4, and XZ to allow users to use alternatives such as pigz, pbzip2, etc. * tag 'kbuild-v5.8' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (96 commits) kbuild: add variables for compression tools Makefile: install modules.builtin even if CONFIG_MODULES=n mksysmap: Fix the mismatch of '.L' symbols in System.map kbuild: doc: rename LDFLAGS to KBUILD_LDFLAGS modpost: change elf_info->size to size_t modpost: remove is_vmlinux() helper modpost: strip .o from modname before calling new_module() modpost: set have_vmlinux in new_module() modpost: remove mod->skip struct member modpost: add mod->is_vmlinux struct member modpost: remove is_vmlinux() call in check_for_{gpl_usage,unused}() modpost: remove mod->is_dot_o struct member modpost: move -d option in scripts/Makefile.modpost modpost: remove -s option modpost: remove get_next_text() and make {grab,release_}file static modpost: use read_text_file() and get_line() for reading text files modpost: avoid false-positive file open error modpost: fix potential mmap'ed file overrun in get_src_version() modpost: add read_text_file() and get_line() helpers modpost: do not call get_modinfo() for vmlinux(.o) ... |
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Linus Torvalds
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6f2dc3d335 |
dma-mapping updates for 5.8, part 2
- add DMA mapping helpers for struct sg_table (Marek Szyprowski) -----BEGIN PGP SIGNATURE----- iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAl7bvogLHGhjaEBsc3Qu ZGUACgkQD55TZVIEUYNOtg/9Fv/ahcj/ux+KSE858TcwTxMlo9Jqb8jMFBsJd0wT tpnllOsJwjXw7S50wfyACAGHRI8HSjsbga0ogxx2hZDghxtGILhYumhPAxGA4N3i eNoe7KtFld5akHF1re/8Cs/eaGTG2q4mk3U16pB6jcMNEo8y60h2HYnxJeIZyskb m02pdMCHJxAcsXj/s3SjJWa05x+el7SmJLM7ns8dKnmbAq3u+cfR7AdwoiO1/yOi zzrwEo3nfqDyRjKf+UhUN8gz1yRi/i08d+AnDZvDFVizDGaZM+GmqXy7PQbAn+Wq wUtwodZqLFnHxRhK+iofjwPnb1Lu34oc0/z9tMP+UdIa4hFrUYwGvE5UmD1HBo/f WFSEEofTP6BNlJwUm4enTxJKYieIqQ8f1fiTDmmmUB1XFXOn1v4hD/vH81PHAoQx GEXD6QubYSM4qTJjHU8dHcN4kFUlfgbK7KbY1y57msIBdpXAP2TBekvc1k9qj13Q M/wIcmHUgTaqBoEz/VIk/SN6msIgcmvOoWGkTspZPw1LkAk2guliNJlkwAk48cz7 p4++GIaHl+CqsiG+fXQReBvjhdJjiwSQ61GI7pkql9dHignfDsMugn3FSBs0WSKa tnEIF4c+6T+A4jaiUTLJ/BDNXQU2glmSxXoi2MOnjwgSjO8BFCZptzkttnk/x5a5 A6c= =LLjY -----END PGP SIGNATURE----- Merge tag 'dma-mapping-5.8-2' of git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping helpers from Christoph Hellwig: "These were in a separate stable branch so that various media and drm trees could pull the in for bug fixes, but looking at linux-next that hasn't actually happened yet. Still sending the APIs to you in the hope that these bug fixes get picked up for 5.8 in one way or another. Summary: - add DMA mapping helpers for struct sg_table (Marek Szyprowski)" * tag 'dma-mapping-5.8-2' of git://git.infradead.org/users/hch/dma-mapping: iommu: add generic helper for mapping sgtable objects scatterlist: add generic wrappers for iterating over sgtable objects dma-mapping: add generic helpers for mapping sgtable objects |
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Linus Torvalds
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1ee18de929 |
dma-mapping updates for 5.8, part 1
- enhance the dma pool to allow atomic allocation on x86 with AMD SEV (David Rientjes) - two small cleanups (Jason Yan and Peter Collingbourne) -----BEGIN PGP SIGNATURE----- iQI/BAABCgApFiEEgdbnc3r/njty3Iq9D55TZVIEUYMFAl7bvTULHGhjaEBsc3Qu ZGUACgkQD55TZVIEUYMJVhAAgTiWNzxPJhM6RTeRooM6W0NvcZGTJT6ExyJghaau aJvHUjXPrRmeBM8Zjwbbu5dioncd8c7npfRjBvATaEL74pa1u9gH3jnUTxh6L4WQ /FTNYryZVbprXJsdFuDZvCsO/CChqfZL8PWz+NFgIpICOyyXdorQELMhCaeOhnfU /goq6SvKmPlmXdb4eM2fXRD7udt1qlp+Oq2EZUdT3Xb4CBFsWUYbOMde22VY390Z 2E9mEztOaKjNgAM/TfCoXo7iRUSwxcpO5aSliDhJJ/7uWaxyWTzFlaoIlwIkkNKb TcguNJbIZtjIXwBMv9gS6CqVEgFymmWqX5Tr23+vbb7S/235HqKtN1dPmV2h4R0H QOpvYXfm6kc4tpH4J32NMp+IqfQmwgMbNtUsiXWk5Lxl27cb8K2Q5eqEwxRWMbG+ HObO7Kzb8oCygWwozZ+3QcWSr+9QAgzsb4Jl4jg6adjd8LDcbmKo4B9TKptGpVnL xjDleKdb/P4Vq55q9KHFLjqFUesuQIv2mKl2s+zr2BqROxjZ562kM9QHwsoCqc4Q tFuVed+XOoT7yhdKdtwEK7lwcQBtZgP5l/HgsoosmuJ975holsQ4pbKSf4A2Y4yo XwHYonSwOAEbi4nPxnvKIm4aUNq+PC44TH0VJcXud3tmQ/DGipdlLW8/nyw9ecfa qaQ= =GT3J -----END PGP SIGNATURE----- Merge tag 'dma-mapping-5.8' of git://git.infradead.org/users/hch/dma-mapping Pull dma-mapping updates from Christoph Hellwig: - enhance the dma pool to allow atomic allocation on x86 with AMD SEV (David Rientjes) - two small cleanups (Jason Yan and Peter Collingbourne) * tag 'dma-mapping-5.8' of git://git.infradead.org/users/hch/dma-mapping: dma-contiguous: fix comment for dma_release_from_contiguous dma-pool: scale the default DMA coherent pool size with memory capacity x86/mm: unencrypted non-blocking DMA allocations use coherent pools dma-pool: add pool sizes to debugfs dma-direct: atomic allocations must come from atomic coherent pools dma-pool: dynamically expanding atomic pools dma-pool: add additional coherent pools to map to gfp mask dma-remap: separate DMA atomic pools from direct remap code dma-debug: make __dma_entry_alloc_check_leak() static |
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Linus Torvalds
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e542e0dc3e |
Merge branch 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull dmi update from Jean Delvare. * 'dmi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging: firmware/dmi: Report DMI Bios & EC firmware release |
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Linus Torvalds
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3925c3bbdf |
pci-v5.8-changes
-----BEGIN PGP SIGNATURE----- iQJIBAABCgAyFiEEgMe7l+5h9hnxdsnuWYigwDrT+vwFAl7ZUn8UHGJoZWxnYWFz QGdvb2dsZS5jb20ACgkQWYigwDrT+vwuyxAAnjyHTbjpLtFcSh1on0Tsehi6hAiV o8w40hj3geQv/zVPgRsui3OSE9PTihPacKUQBxs/7M/iSF3cKzQEreYqDNbOMlun 957X6CD0yTPChjcHy2brFFhQqs6O8Nl/acvkHKKP369nZkost5A2TMHPSKzKajdB fYw6imeunIvSpUYH9GlP9CU+suj25UHQqxUUyXAHqmF4R89j3mTpSMYJzq3VN426 R77xeRC26lUEHepRgEiaFmdEK0zGTp/uXsJQNwaIFduNfX6x6Oo8u9EC4Mrb48g1 duoxLUV6a8bqpjkwpPfQIv7lw1Mm1mx/vMA040zGVQR98QAMZacCPJO7eVHM/N9/ m62bymyKHuNxXhWQwbeAyF0ZH+usaCFh7uidd4L0x1Uvs/GNCGD/icuKxHTnRWLv 1P4bZg0n23YFzE5/eXY2voos+rfrycIoC5gspuJdP/H2Q5UM/EnI1RhizIItuqJY ORAdczo7a8oamt90WWZ636HeL1UQIGZjq1iWz2++vRTJGzfLeuOJj76cn2RuDQsZ +rBtQ1zH3saEZSARPdS5HQH+SaDxtjfu/AaAz6NDNSvasDLqmjRdOkM6UIU2pqMG cE9um1ijcSy2UjUInVPr3Hk7bbbd9YJTQQiWr04uL6ap0JpwRhSPqQpDHtLwLh+E R13t08tEMd09730= =9ymj -----END PGP SIGNATURE----- Merge tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "Enumeration: - Program MPS for RCiEP devices (Ashok Raj) - Fix pci_register_host_bridge() device_register() error handling (Rob Herring) - Fix pci_host_bridge struct device release/free handling (Rob Herring) Resource management: - Allow resizing BARs for devices on root bus (Ard Biesheuvel) Power management: - Reduce Thunderbolt resume time by working around devices that don't support DLL Link Active reporting (Mika Westerberg) - Work around a Pericom USB controller OHCI/EHCI PME# defect (Kai-Heng Feng) Virtualization: - Add ACS quirk for Intel Root Complex Integrated Endpoints (Ashok Raj) - Avoid FLR for AMD Starship USB 3.0 (Kevin Buettner) - Avoid FLR for AMD Matisse HD Audio & USB 3.0 (Marcos Scriven) Error handling: - Use only _OSC (not HEST FIRMWARE_FIRST) to determine AER ownership (Alexandru Gagniuc, Kuppuswamy Sathyanarayanan) - Reduce verbosity by logging only ACPI_NOTIFY_DISCONNECT_RECOVER events (Kuppuswamy Sathyanarayanan) - Don't enable AER by default in Kconfig (Bjorn Helgaas) Peer-to-peer DMA: - Add AMD Zen Raven and Renoir Root Ports to whitelist (Alex Deucher) ASPM: - Allow ASPM on links to PCIe-to-PCI/PCI-X Bridges (Kai-Heng Feng) Endpoint framework: - Fix DMA channel release in test (Kunihiko Hayashi) - Add page size as argument to pci_epc_mem_init() (Lad Prabhakar) - Add support to handle multiple base for mapping outbound memory (Lad Prabhakar) Generic host bridge driver: - Support building as module (Rob Herring) - Eliminate pci_host_common_probe wrappers (Rob Herring) Amlogic Meson PCIe controller driver: - Don't use FAST_LINK_MODE to set up link (Marc Zyngier) Broadcom STB PCIe controller driver: - Disable ASPM L0s if 'aspm-no-l0s' in DT (Jim Quinlan) - Fix clk_put() error (Jim Quinlan) - Fix window register offset (Jim Quinlan) - Assert fundamental reset on initialization (Nicolas Saenz Julienne) - Add notify xHCI reset property (Nicolas Saenz Julienne) - Add init routine for Raspberry Pi 4 VL805 USB controller (Nicolas Saenz Julienne) - Sync with Raspberry Pi 4 firmware for VL805 initialization (Nicolas Saenz Julienne) Cadence PCIe controller driver: - Remove "cdns,max-outbound-regions" DT property (replaced by "ranges") (Kishon Vijay Abraham I) - Read 32-bit (not 16-bit) Vendor ID/Device ID property from DT (Kishon Vijay Abraham I) Marvell Aardvark PCIe controller driver: - Improve link training (Marek Behún) - Add PHY support (Marek Behún) - Add "phys", "max-link-speed", "reset-gpios" to dt-binding (Marek Behún) - Train link immediately after enabling training to work around detection issues with some cards (Pali Rohár) - Issue PERST via GPIO to work around detection issues (Pali Rohár) - Don't blindly enable ASPM L0s (Pali Rohár) - Replace custom macros by standard linux/pci_regs.h macros (Pali Rohár) Microsoft Hyper-V host bridge driver: - Fix probe failure path to release resource (Wei Hu) - Retry PCI bus D0 entry on invalid device state for kdump (Wei Hu) Renesas R-Car PCIe controller driver: - Fix incorrect programming of OB windows (Andrew Murray) - Add suspend/resume (Kazufumi Ikeda) - Rename pcie-rcar.c to pcie-rcar-host.c (Lad Prabhakar) - Add endpoint controller driver (Lad Prabhakar) - Fix PCIEPAMR mask calculation (Lad Prabhakar) - Add r8a77961 to DT binding (Yoshihiro Shimoda) Socionext UniPhier Pro5 controller driver: - Add endpoint controller driver (Kunihiko Hayashi) Synopsys DesignWare PCIe controller driver: - Program outbound ATU upper limit register (Alan Mikhak) - Fix inner MSI IRQ domain registration (Marc Zyngier) Miscellaneous: - Check for platform_get_irq() failure consistently (negative return means failure) (Aman Sharma) - Fix several runtime PM get/put imbalances (Dinghao Liu) - Use flexible-array and struct_size() helpers for code cleanup (Gustavo A. R. Silva) - Update & fix issues in bridge emulation of PCIe registers (Jon Derrick) - Add macros for bridge window names (PCI_BRIDGE_IO_WINDOW, etc) (Krzysztof Wilczyński) - Work around Intel PCH MROMs that have invalid BARs (Xiaochun Lee)" * tag 'pci-v5.8-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: (100 commits) PCI: uniphier: Add Socionext UniPhier Pro5 PCIe endpoint controller driver PCI: Add ACS quirk for Intel Root Complex Integrated Endpoints PCI/DPC: Print IRQ number used by port PCI/AER: Use "aer" variable for capability offset PCI/AER: Remove redundant dev->aer_cap checks PCI/AER: Remove redundant pci_is_pcie() checks PCI/AER: Remove HEST/FIRMWARE_FIRST parsing for AER ownership PCI: tegra: Fix runtime PM imbalance on error PCI: vmd: Filter resource type bits from shadow register PCI: tegra194: Fix runtime PM imbalance on error dt-bindings: PCI: Add UniPhier PCIe endpoint controller description PCI: hv: Use struct_size() helper PCI: Rename _DSM constants to align with spec PCI: Avoid FLR for AMD Starship USB 3.0 PCI: Avoid FLR for AMD Matisse HD Audio & USB 3.0 x86/PCI: Drop unused xen_register_pirq() gsi_override parameter PCI: dwc: Use private data pointer of "struct irq_domain" to get pcie_port PCI: amlogic: meson: Don't use FAST_LINK_MODE to set up link PCI: dwc: Fix inner MSI IRQ domain registration PCI: dwc: pci-dra7xx: Use devm_platform_ioremap_resource_byname() ... |