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Parav Pandit eb15c78b05 RDMA/core: Do not invoke init_port on compat devices
The driver interface cannot manipulate the sysfs of the compat device,
only of the full device so we must avoid calling the driver sysfs APIs on
compat devices.

This prevents an oops:

 Call Trace:
 dump_stack+0x5a/0x73
 kobject_init+0x74/0x80
 kobject_init_and_add+0x35/0xb0
 hfi1_create_port_files+0x6e/0x3c0 [hfi1]
 ib_setup_port_attrs+0x43b/0x560 [ib_core]
 add_one_compat_dev+0x16a/0x230 [ib_core]
 rdma_dev_init_net+0x110/0x160 [ib_core]
 ops_init+0x38/0xf0
 setup_net+0xcf/0x1e0
 copy_net_ns+0xb7/0x130
 create_new_namespaces+0x11a/0x1b0
 unshare_nsproxy_namespaces+0x55/0xa0
 ksys_unshare+0x1a7/0x340
 __x64_sys_unshare+0xe/0x20
 do_syscall_64+0x5b/0x180
 entry_SYSCALL_64_after_hwframe+0x44/0xa9

Fixes: 5417783eab ("RDMA/core: Support core port attributes in non init_net")
Reported-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Tested-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Parav Pandit <parav@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
2019-05-03 10:41:23 -03:00
arch powerpc fixes for 5.1 #5 2019-04-13 09:03:09 -07:00
block block: do not leak memory in bio_copy_user_iov() 2019-04-10 16:14:40 -06:00
certs kexec, KEYS: Make use of platform keyring for signature verify 2019-02-04 17:34:07 -05:00
crypto lib/lzo: separate lzo-rle from lzo 2019-03-07 18:32:03 -08:00
Documentation ARM: SoC fixes 2019-04-07 13:46:17 -10:00
drivers RDMA/core: Do not invoke init_port on compat devices 2019-05-03 10:41:23 -03:00
fs Merge branch 'page-refs' (page ref overflow) 2019-04-14 15:09:40 -07:00
include RDMA/core: Introduce RDMA subsystem ibdev_* print functions 2019-05-01 12:29:28 -04:00
init init/main: add checks for the return value of memblock_alloc*() 2019-03-12 10:04:02 -07:00
ipc Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2019-03-12 14:08:19 -07:00
kernel Merge branch 'page-refs' (page ref overflow) 2019-04-14 15:09:40 -07:00
lib RDMA/core: Introduce RDMA subsystem ibdev_* print functions 2019-05-01 12:29:28 -04:00
LICENSES LICENSES: Add GCC runtime library exception text 2019-01-16 14:54:15 -07:00
mm Merge branch 'page-refs' (page ref overflow) 2019-04-14 15:09:40 -07:00
net Revert "SUNRPC: Micro-optimise when the task is known not to be sleeping" 2019-04-11 15:41:14 -04:00
samples BPF: Add sample code for new ib_umad tracepoint 2019-03-27 15:53:26 -03:00
scripts fs: stream_open - opener for stream-like files so that read and write can run simultaneously without deadlock 2019-04-06 07:01:55 -10:00
security apparmor: Restore Y/N in /sys for apparmor's "enabled" 2019-04-10 04:24:48 -07:00
sound ASoC: Fixes for v5.1 2019-04-11 14:36:30 +02:00
tools for-linus-20190412 2019-04-13 16:23:16 -07:00
usr user/Makefile: Fix typo and capitalization in comment section 2018-12-11 00:18:03 +09:00
virt KVM/ARM fixes for 5.1 2019-03-28 19:07:30 +01:00
.clang-format clang-format: Update with the latest for_each macro list 2019-04-12 12:49:54 +02:00
.cocciconfig scripts: add Linux .cocciconfig for coccinelle 2016-07-22 12:13:39 +02:00
.get_maintainer.ignore
.gitattributes .gitattributes: set git diff driver for C source code files 2016-10-07 18:46:30 -07:00
.gitignore kbuild: Add support for DT binding schema checks 2018-12-13 09:41:32 -06:00
.mailmap Update Nicolas Pitre's email address 2019-04-02 18:12:44 -10:00
COPYING COPYING: use the new text with points to the license files 2018-03-23 12:41:45 -06:00
CREDITS Char/Misc driver patches for 5.1-rc1 2019-03-06 14:18:59 -08:00
Kbuild Kbuild updates for v5.1 2019-03-10 17:48:21 -07:00
Kconfig kconfig: move the "Executable file formats" menu to fs/Kconfig.binfmt 2018-08-02 08:06:55 +09:00
MAINTAINERS Merge branch 'rdma_mmap' into rdma.git for-next 2019-04-24 16:20:34 -03:00
Makefile Linux 5.1-rc5 2019-04-14 15:17:41 -07:00
README Drop all 00-INDEX files from Documentation/ 2018-09-09 15:08:58 -06:00

Linux kernel
============

There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.

In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``.  The formatted documentation can also be read online at:

    https://www.kernel.org/doc/html/latest/

There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.

Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.