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linux/arch/powerpc/kernel
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Christophe Leroy f1797e4de1 powerpc/modules: Don't WARN on first module allocation attempt 
module_alloc() first tries to allocate module text within 24 bits direct
jump from kernel text, and tries a wider allocation if first one fails.

When first allocation fails the following is observed in kernel logs:

  vmap allocation for size 2400256 failed: use vmalloc=<size> to increase size
  systemd-udevd: vmalloc error: size 2395133, vm_struct allocation failed, mode:0xcc0(GFP_KERNEL), nodemask=(null)
  CPU: 0 PID: 127 Comm: systemd-udevd Tainted: G        W         5.15.5-gentoo-PowerMacG4 #9
  Call Trace:
  [e2a53a50] [c0ba0048] dump_stack_lvl+0x80/0xb0 (unreliable)
  [e2a53a70] [c0540128] warn_alloc+0x11c/0x2b4
  [e2a53b50] [c0531be8] __vmalloc_node_range+0xd8/0x64c
  [e2a53c10] [c00338c0] module_alloc+0xa0/0xac
  [e2a53c40] [c027a368] load_module+0x2ae0/0x8148
  [e2a53e30] [c027fc78] sys_finit_module+0xfc/0x130
  [e2a53f30] [c0035098] ret_from_syscall+0x0/0x28
  ...

Add __GFP_NOWARN flag to first allocation so that no warning appears
when it fails.

Reported-by: Erhard Furtner <erhard_f@mailbox.org>
Fixes: 2ec13df167 ("powerpc/modules: Load modules closer to kernel text")
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/93c9b84d6ec76aaf7b4f03468e22433a6d308674.1638267035.git.christophe.leroy@csgroup.eu
2021-11-30 22:44:32 +11:00
..
ptrace powerpc: Add dear as a synonym for pt_regs.dar register 2021-08-26 21:21:07 +10:00
syscalls compat: remove some compat entry points 2021-09-08 15:32:35 -07:00
trace powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
vdso32 powerpc updates for 5.13 2021-04-30 12:22:28 -07:00
vdso64 powerpc/vdso: Don't use r30 to avoid breaking Go lang 2021-07-29 23:13:12 +10:00
.gitignore .gitignore: add SPDX License Identifier 2020-03-25 11:50:48 +01:00
align.c powerpc: warn on emulation of dcbz instruction in kernel mode 2021-10-22 15:22:05 +11:00
asm-offsets.c powerpc: smp: remove hack to obtain offset of task_struct::cpu 2021-09-30 16:13:11 +02:00
audit.c Revert "powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC" 2021-10-27 22:30:32 +11:00
btext.c powerpc/btext: add missing of_node_put 2021-11-25 11:25:29 +11:00
cacheinfo.c powerpc/smp: Use existing L2 cache_map cpumask to find L3 cache siblings 2021-08-04 10:53:39 +10:00
cacheinfo.h
compat_audit.c Revert "powerpc/audit: Convert powerpc to AUDIT_ARCH_COMPAT_GENERIC" 2021-10-27 22:30:32 +11:00
cpu_setup_6xx.S powerpc/32: Blacklist functions running with MMU disabled for kprobe 2020-06-02 20:59:11 +10:00
cpu_setup_44x.S
cpu_setup_fsl_booke.S powerpc: Retire e200 core (mpc555x processor) 2020-12-05 21:49:18 +11:00
cpu_setup_pa6t.S
cpu_setup_power.c powerpc/64s: Always set PMU control registers to frozen/disabled when not in use 2021-11-24 21:08:57 +11:00
cpu_setup_ppc970.S
cputable.c arch: powerpc: Stop building and using oprofile 2021-01-29 10:05:51 +05:30
crash_dump.c powerpc: Don't use 'struct ppc_inst' to reference instruction location 2021-06-17 00:09:00 +10:00
dawr.c powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
dbell.c powerpc: handle irq_enter/irq_exit in interrupt handler wrappers 2021-02-09 00:10:49 +11:00
dma-iommu.c powerpc/iommu: Report the correct most efficient DMA mask for PCI devices 2021-09-30 17:10:17 +10:00
dma-mask.c
dma-swiotlb.c
dt_cpu_ftrs.c powerpc/64s: Always set PMU control registers to frozen/disabled when not in use 2021-11-24 21:08:57 +11:00
early_32.c
eeh_cache.c powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
eeh_driver.c powerpc/eeh: Use a goto for recovery failures 2021-11-25 11:25:31 +11:00
eeh_event.c
eeh_pe.c powerpc/eeh: Delete eeh_pe->config_addr 2020-10-07 22:34:47 +11:00
eeh_sysfs.c powerpc/eeh: Pass eeh_dev to eeh_ops->resume_notify() 2020-07-26 23:34:20 +10:00
eeh.c pci-v5.16-changes 2021-11-06 14:36:12 -07:00
entry_32.S powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
entry_64.S powerpc/bug: Provide better flexibility to WARN_ON/__WARN_FLAGS() with asm goto 2021-08-15 13:49:24 +10:00
epapr_hcalls.S
epapr_paravirt.c powerpc: Don't use 'struct ppc_inst' to reference instruction location 2021-06-17 00:09:00 +10:00
exceptions-64e.S powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
exceptions-64s.S powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
fadump.c powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
firmware.c powerpc: fix unbalanced node refcount in check_kvm_guest() 2021-10-09 00:15:59 +11:00
fpu.S powerpc/32: Remove unneccessary calculations in load_up_{fpu/altivec} 2021-08-18 23:49:55 +10:00
fsl_booke_entry_mapping.S powerpc/booke: Avoid link stack corruption in several places 2021-08-25 13:35:47 +10:00
head_8xx.S powerpc/8xx: Fix pinned TLBs with CONFIG_STRICT_KERNEL_RWX 2021-11-16 21:37:10 +11:00
head_32.h powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
head_40x.S powerpc: Define swapper_pg_dir[] in C 2021-06-17 00:09:10 +10:00
head_44x.S powerpc/booke: Avoid link stack corruption in several places 2021-08-25 13:35:47 +10:00
head_64.S powerpc/kexec: blacklist functions called in real mode for kprobe 2021-07-26 20:38:51 +10:00
head_book3s_32.S powerpc/32s: Fix napping restore in data storage interrupt (DSI) 2021-08-07 08:53:59 +10:00
head_booke.h powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
head_fsl_booke.S powerpc updates for 5.15 2021-09-03 11:22:50 -07:00
hw_breakpoint_constraints.c powerpc/breakpoint: Cleanup 2021-10-22 15:22:06 +11:00
hw_breakpoint.c powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
idle_6xx.S powerpc/32: Return directly from power_save_ppc32_restore() 2021-03-29 13:22:10 +11:00
idle_book3e.S
idle_book3s.S powerpc/idle: Don't corrupt back chain when going idle 2021-10-20 21:37:58 +11:00
idle_e500.S powerpc/32: Return directly from power_save_ppc32_restore() 2021-03-29 13:22:10 +11:00
idle.c sched/idle: Fix arch_cpu_idle() vs tracing 2020-11-24 16:47:35 +01:00
ima_arch.c powerpc/ima: Fix secure boot rules in ima arch policy 2020-05-07 17:25:54 +10:00
interrupt_64.S powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
interrupt.c powerpc/64s/interrupt: Fix check_return_regs_valid() false positive 2021-10-27 22:33:47 +11:00
io-workarounds.c powerpc: Fix reverse map real-mode address lookup with huge vmalloc 2021-05-28 22:54:27 +10:00
io.c
iomap.c powerpc: inline iomap accessors 2020-12-04 01:01:09 +11:00
iommu.c powerpc updates for 5.15 2021-09-03 11:22:50 -07:00
irq.c powerpc/64: warn if local irqs are enabled in NMI or hardirq context 2021-10-07 19:54:55 +11:00
isa-bridge.c mm/vmalloc: remove unmap_kernel_range 2021-04-30 11:20:40 -07:00
jump_label.c powerpc: Don't use 'struct ppc_inst' to reference instruction location 2021-06-17 00:09:00 +10:00
kdebugfs.c powerpc: rename powerpc_debugfs_root to arch_debugfs_dir 2021-08-13 22:04:26 +10:00
kgdb.c powerpc/64s: avoid reloading (H)SRR registers if they are still valid 2021-06-25 00:06:55 +10:00
kprobes-ftrace.c ftrace: disable preemption when recursion locked 2021-10-27 11:21:49 -04:00
kprobes.c kprobes: treewide: Make it harder to refer kretprobe_trampoline directly 2021-09-30 21:24:06 -04:00
kvm_emul.S
kvm.c gup: Turn fault_in_pages_{readable,writeable} into fault_in_{readable,writeable} 2021-10-18 16:33:03 +02:00
l2cr_6xx.S powerpc: Drop SYNC_601() ISYNC_601() and SYNC() 2020-10-08 21:17:13 +11:00
legacy_serial.c powerpc/legacy_serial: Fix UBSAN: array-index-out-of-bounds 2021-05-12 11:07:39 +10:00
Makefile powerpc: clean vdso32 and vdso64 directories 2021-11-15 15:46:45 +11:00
mce_power.c powerpc/powernv: Fix machine check reporting of async store errors 2021-06-21 21:13:19 +10:00
mce.c powerpc/mce: Fix access error in mce handler 2021-09-13 22:34:12 +10:00
misc_32.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
misc_64.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
misc.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
module_32.c powerpc/ftrace: Activate HAVE_DYNAMIC_FTRACE_WITH_REGS on PPC32 2021-11-29 22:49:29 +11:00
module_64.c powerpc/modules: Use PPC_RAW_xx() macros 2021-06-16 00:16:48 +10:00
module.c powerpc/modules: Don't WARN on first module allocation attempt 2021-11-30 22:44:32 +11:00
msi.c
note.S
nvram_64.c printk: introduce a kmsg_dump iterator 2021-03-08 11:43:27 +01:00
of_platform.c powerpc/eeh: Remove eeh_dev_phb_init_dynamic() 2020-07-26 23:34:19 +10:00
optprobes_head.S powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
optprobes.c kprobes: treewide: Make it harder to refer kretprobe_trampoline directly 2021-09-30 21:24:06 -04:00
paca.c memblock: rename memblock_free to memblock_phys_free 2021-11-06 13:30:41 -07:00
pci_32.c
pci_64.c mm/vmalloc: remove unmap_kernel_range 2021-04-30 11:20:40 -07:00
pci_dn.c powerpc/pci: Move PHB discovery for PCI_DN using platforms 2021-02-09 00:01:05 +11:00
pci_of_scan.c
pci-common.c PCI: Rename pcibios_add_device() to pcibios_device_add() 2021-09-21 15:26:09 -05:00
pci-hotplug.c powerpc/eeh: Release EEH device state synchronously 2020-05-18 21:58:44 +10:00
pmc.c
ppc32.h
ppc_save_regs.S powerpc: Improve ppc_save_regs() 2020-04-04 21:40:57 +11:00
proc_powerpc.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
process.c KVM: PPC: Book3S HV P9: Use Linux SPR save/restore to manage some host SPRs 2021-11-24 21:09:01 +11:00
prom_init_check.sh
prom_init.c powerpc/prom_init: Fix improper check of prom_getprop() 2021-11-25 11:25:33 +11:00
prom_parse.c
prom.c Kbuild updates for v5.15 2021-09-03 15:33:47 -07:00
reloc_32.S powerpc: Avoid link stack corruption in misc asm functions 2021-08-25 13:35:47 +10:00
reloc_64.S
rtas_flash.c proc: convert everything to "struct proc_ops" 2020-02-04 03:05:26 +00:00
rtas_pci.c mm: reorder includes after introduction of linux/pgtable.h 2020-06-09 09:39:13 -07:00
rtas-proc.c powerpc/rtas: rename RTAS_RMOBUF_MAX to RTAS_USER_REGION_SIZE 2021-04-14 23:04:16 +10:00
rtas-rtc.c powerpc/rtas-rtc: remove unused constant 2021-06-25 14:47:20 +10:00
rtas.c powerpc/rtas: rtas_busy_delay_time() kernel-doc 2021-11-25 11:25:33 +11:00
rtasd.c powerpc: Replace deprecated CPU-hotplug functions. 2021-08-10 23:14:56 +10:00
secure_boot.c powerpc/pseries: Detect secure and trusted boot state of the system. 2020-07-16 14:49:53 +10:00
security.c powerpc/security: Add a helper to query stf_barrier type 2021-10-07 19:52:58 +11:00
secvar-ops.c
secvar-sysfs.c
setup_32.c powerpc: Don't use 'struct ppc_inst' to reference instruction location 2021-06-17 00:09:00 +10:00
setup_64.c mm/memory_hotplug: remove CONFIG_MEMORY_HOTPLUG_SPARSE 2021-11-06 13:30:42 -07:00
setup-common.c powerpc: Mark probe_machine() __init and static 2021-11-29 22:49:26 +11:00
setup.h powerpc: remove unneeded semicolons 2021-02-09 00:10:50 +11:00
signal_32.c signal: Replace force_fatal_sig with force_exit_sig when in doubt 2021-11-19 09:15:58 -06:00
signal_64.c signal: Replace force_fatal_sig with force_exit_sig when in doubt 2021-11-19 09:15:58 -06:00
signal.c entry: rseq: Call rseq_handle_notify_resume() in tracehook_notify_resume() 2021-09-22 10:24:01 -04:00
signal.h powerpc/signal32: Fix sigset_t copy 2021-11-16 21:24:16 +11:00
smp-tbsync.c
smp.c powerpc/smp: Move setup_profiling_timer() under CONFIG_PROFILING 2021-11-29 22:49:23 +11:00
stacktrace.c kprobes: treewide: Make it harder to refer kretprobe_trampoline directly 2021-09-30 21:24:06 -04:00
static_call.c powerpc/32: Add support for out-of-line static calls 2021-10-22 15:22:05 +11:00
suspend.c
swsusp_32.S powerpc/32: Blacklist functions running with MMU disabled for kprobe 2020-06-02 20:59:11 +10:00
swsusp_64.c powerpc/machdep: Remove stale functions from ppc_md structure 2021-10-22 15:22:05 +11:00
swsusp_asm64.S powerpc/machdep: Remove stale functions from ppc_md structure 2021-10-22 15:22:05 +11:00
swsusp_booke.S
swsusp.c
sys_ppc32.c powerpc/compat_sys: swap hi/lo parts of 64-bit syscall args in LE mode 2021-02-11 23:35:07 +11:00
syscalls.c powerpc/syscalls: Simplify do_mmap2() 2021-08-25 13:35:48 +10:00
sysfs.c powerpc/cpuhp: BUG -> WARN conversion in offline path 2021-10-09 00:16:00 +11:00
systbl_chk.sh
systbl.S powerpc/syscalls: switch to generic syscalltbl.sh 2021-04-14 23:04:16 +10:00
tau_6xx.c powerpc/tau: Add 'static' storage qualifier to 'tau_work' definition 2021-08-20 17:00:53 +10:00
time.c powerpc/time: add API for KVM to re-arm the host timer/decrementer 2021-11-24 21:08:57 +11:00
tm.S powerpc: flexible GPR range save/restore macros 2021-11-29 23:15:20 +11:00
traps.c powerpc/64s: Fix unrecoverable MCE calling async handler from NMI 2021-10-07 19:54:55 +11:00
ucall.S
udbg_16550.c powerpc/microwatt: Use standard 16550 UART for console 2021-06-21 21:16:31 +10:00
udbg.c isystem: ship and use stdarg.h 2021-08-19 09:02:55 +09:00
uprobes.c powerpc/64s: avoid reloading (H)SRR registers if they are still valid 2021-06-25 00:06:55 +10:00
vdso32_wrapper.S powerpc/vdso: fix unnecessary rebuilds of vgettimeofday.o 2021-01-30 22:23:42 +11:00
vdso64_wrapper.S powerpc/vdso: fix unnecessary rebuilds of vgettimeofday.o 2021-01-30 22:23:42 +11:00
vdso.c powerpc/vdso: Add support for time namespaces 2021-04-14 23:04:44 +10:00
vecemu.c powerpc: Define and use get_user_instr() et. al. 2020-05-19 00:10:37 +10:00
vector.S powerpc/32: Remove unneccessary calculations in load_up_{fpu/altivec} 2021-08-18 23:49:55 +10:00
vmlinux.lds.S powerpc: Don't bother about .data..Lubsan sections 2021-11-29 22:49:29 +11:00
watchdog.c powerpc/watchdog: help remote CPUs to flush NMI printk output 2021-11-29 23:08:43 +11:00