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c46f59e902
linux_dsm_epyc7002/arch/mips
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James Cowgill c46f59e902 MIPS: Avoid BUG warning in arch_check_elf 
arch_check_elf contains a usage of current_cpu_data that will call
smp_processor_id() with preemption enabled and therefore triggers a
"BUG: using smp_processor_id() in preemptible" warning when an fpxx
executable is loaded.

As a follow-up to commit b244614a60 ("MIPS: Avoid a BUG warning during
prctl(PR_SET_FP_MODE, ...)"), apply the same fix to arch_check_elf by
using raw_current_cpu_data instead. The rationale quoted from the previous
commit:

"It is assumed throughout the kernel that if any CPU has an FPU, then
all CPUs would have an FPU as well, so it is safe to perform the check
with preemption enabled - change the code to use raw_ variant of the
check to avoid the warning."

Fixes: 46490b5725 ("MIPS: kernel: elf: Improve the overall ABI and FPU mode checks")
Signed-off-by: James Cowgill <James.Cowgill@imgtec.com>
CC: <stable@vger.kernel.org> # 4.0+
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/15951/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-04-12 15:22:13 +02:00
..
alchemy MIPS changes for v4.11 2017-02-21 14:21:11 -08:00
ar7 MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
ath25 genirq: Remove irq argument from irq flow handlers 2015-09-16 15:47:51 +02:00
ath79 MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
bcm47xx MIPS: BCM47XX: Fix button inversion for Asus WL-500W 2017-02-17 11:16:46 +00:00
bcm63xx MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
bmips MIPS: BMIPS: Support APPENDED_DTB 2016-10-06 17:31:02 +02:00
boot MIPS: DTS: Add img directory to Makefile 2017-02-17 11:16:46 +00:00
cavium-octeon MIPS: Add missing include files 2017-03-08 10:38:06 +01:00
cobalt MIPS: Cobalt: Fix typo 2016-08-03 08:16:30 +02:00
configs MIPS changes for v4.11 2017-02-21 14:21:11 -08:00
dec MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
emma MIPS: Avoid old-style declaration 2017-01-25 02:51:11 +01:00
fw MIPS: Fix misspellings in comments. 2016-04-03 12:32:09 +02:00
generic MIPS: generic/kexec: add support for a DTB passed in a separate buffer 2017-01-03 16:34:46 +01:00
include MIPS: Fix modversioning of _mcount symbol 2017-04-12 15:13:53 +02:00
jazz MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
jz4740 MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
kernel MIPS: Avoid BUG warning in arch_check_elf 2017-04-12 15:22:13 +02:00
kvm sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h> 2017-03-02 08:42:32 +01:00
lantiq MIPS: Lantiq: fix missing xbar kernel panic 2017-03-21 21:34:43 +01:00
lasat MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
lib MIPS: Fix modversions 2017-01-24 18:30:35 +01:00
loongson32 MIPS: Loongson1B: Change the OSC clock name 2017-01-03 16:48:40 +01:00
loongson64 MIPS: Add missing include files 2017-03-08 10:38:06 +01:00
math-emu sched/headers: Prepare to move the task_lock()/unlock() APIs to <linux/sched/task.h> 2017-03-02 08:42:38 +01:00
mm MIPS: c-r4k: Fix Loongson-3's vcache/scache waysize calculation 2017-03-21 23:22:43 +01:00
mti-malta MIPS: Malta: Fix i8259 irqchip setup 2017-04-10 12:02:42 +02:00
net treewide: remove redundant #include <linux/kconfig.h> 2016-10-11 15:06:33 -07:00
netlogic MIPS: Add missing include files 2017-03-08 10:38:06 +01:00
oprofile MIPS: Unify perf counter register definitions 2017-02-14 09:00:24 +00:00
paravirt sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h> 2017-03-02 08:42:36 +01:00
pci This is a tree wide change and has been kept separate for that reason. 2017-02-25 13:45:43 -08:00
pic32 MIPS: pic32mzda: Fix linker error for pic32_get_pbclk() 2017-02-17 11:14:29 +00:00
pistachio Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2016-08-06 09:13:11 -04:00
pmcs-msp71xx MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
pnx833x MIPS: Squash lines for simple wrapper functions 2016-10-04 16:13:57 +02:00
power MIPS: Hibernate: flush TLB entries earlier 2015-04-10 15:41:52 +02:00
ralink MIPS: ralink: Fix typos in rt3883 pinctrl 2017-03-08 11:29:48 +01:00
rb532 MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
sgi-ip22 MIPS: Add missing include files 2017-03-08 10:38:06 +01:00
sgi-ip27 MIPS: Add missing include files 2017-03-08 10:38:06 +01:00
sgi-ip32 MIPS: Add missing include files 2017-03-08 10:38:06 +01:00
sibyte sched/headers: Move task-stack related APIs from <linux/sched.h> to <linux/sched/task_stack.h> 2017-03-03 01:43:47 +01:00
sni char/genrtc: remove asm-generic/rtc.h from mips 2016-06-04 00:23:36 +02:00
txx9 MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
vdso MIPS: VDSO: Explicitly use -fno-asynchronous-unwind-tables 2017-02-17 11:32:12 +00:00
vr41xx MIPS: Audit and remove any unnecessary uses of module.h 2017-02-14 09:00:25 +00:00
xilfpga MIPS: xilfpga: Use irqchip instead of the legacy way 2017-01-03 16:34:39 +01:00
Kbuild MIPS: Initial implementation of a VDSO 2015-11-11 08:36:36 +01:00
Kbuild.platforms MIPS: generic: Convert SEAD-3 to a generic board 2016-10-06 18:04:20 +02:00
Kconfig MIPS: Force o32 fp64 support on 32bit MIPS64r6 kernels 2017-03-08 11:16:25 +01:00
Kconfig.debug MIPS: Remove compact branch policy Kconfig entries 2016-09-13 14:14:50 +02:00
Makefile MIPS: generic: fix out-of-tree defconfig target builds 2017-04-11 13:17:31 +02:00
Makefile.postlink MIPS: Fix distclean with Makefile.postlink 2017-02-13 18:57:34 +00:00