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b45ba4a51c
linux/arch/powerpc/lib
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Christophe Leroy b45ba4a51c powerpc/lib: fix book3s/32 boot failure due to code patching 
Commit 51c3c62b58 ("powerpc: Avoid code patching freed init
sections") accesses 'init_mem_is_free' flag too early, before the
kernel is relocated. This provokes early boot failure (before the
console is active).

As it is not necessary to do this verification that early, this
patch moves the test into patch_instruction() instead of
__patch_instruction().

This modification also has the advantage of avoiding unnecessary
remappings.

Fixes: 51c3c62b58 ("powerpc: Avoid code patching freed init sections")
Cc: stable@vger.kernel.org # 4.13+
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-10-02 23:34:14 +10:00
..
alloc.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
checksum_32.S powerpc: Implement csum_ipv6_magic in assembly 2018-06-04 00:39:19 +10:00
checksum_64.S powerpc: fix csum_ipv6_magic() on little endian platforms 2018-09-20 21:12:28 +10:00
checksum_wrappers.c Replace <asm/uaccess.h> with <linux/uaccess.h> globally 2016-12-24 11:46:01 -08:00
code-patching.c powerpc/lib: fix book3s/32 boot failure due to code patching 2018-10-02 23:34:14 +10:00
copy_32.S powerpc/lib: Use patch_site to patch copy_32 functions once cache is enabled 2018-08-10 22:12:35 +10:00
copypage_64.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
copypage_power7.S powerpc/64: enhance memcmp() with VMX instruction for long bytes comparision 2018-07-24 22:03:21 +10:00
copyuser_64.S powerpc/64: Copy as much as possible in __copy_tofrom_user 2018-08-08 00:32:36 +10:00
copyuser_power7.S selftests/powerpc/64: Test all paths through copy routines 2018-08-08 00:32:35 +10:00
crtsavres.S powerpc/64: Do not create new section for save/restore functions 2017-05-30 14:59:51 +10:00
div64.S powerpc: Fix a corner case in __div64_32 2005-10-20 09:37:02 +10:00
feature-fixups-test.S powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
feature-fixups.c powerpc/fsl: Add barrier_nospec implementation for NXP PowerPC Book3E 2018-08-08 00:32:24 +10:00
hweight_64.S powerpc: clean inclusions of asm/feature-fixups.h 2018-07-30 22:48:17 +10:00
ldstfp.S powerpc: move ASM_CONST and stringify_in_c() into asm-const.h 2018-07-30 22:48:16 +10:00
locks.c powerpc: clean the inclusion of stringify.h 2018-07-30 22:48:17 +10:00
Makefile powerpc/lib: Implement strlen() in assembly for PPC32 2018-08-07 21:49:30 +10:00
mem_64.S powerpc/string: Implement optimized memset variants 2017-08-17 23:04:35 +10:00
memcmp_32.S powerpc/lib: optimise PPC32 memcmp 2018-06-04 00:39:21 +10:00
memcmp_64.S powerpc/64: add 32 bytes prechecking before using VMX optimization on memcmp() 2018-07-24 22:03:21 +10:00
memcpy_64.S selftests/powerpc/64: Test all paths through copy routines 2018-08-08 00:32:35 +10:00
memcpy_power7.S selftests/powerpc/64: Test all paths through copy routines 2018-08-08 00:32:35 +10:00
pmem.c powerpc/lib: Implement UACCESS_FLUSHCACHE API 2017-11-13 08:00:31 +11:00
quad.S powerpc: Handle most loads and stores in instruction emulation code 2017-09-01 16:39:48 +10:00
rheap.c treewide: kmalloc() -> kmalloc_array() 2018-06-12 16:19:22 -07:00
sstep.c powerpc/sstep: Fix kernel crash if VSX is not present 2018-06-04 00:39:08 +10:00
string_32.S powerpc/lib: optimise 32 bits __clear_user() 2018-06-04 00:39:21 +10:00
string_64.S powerpc: Fix invalid use of register expressions 2017-08-10 22:29:41 +10:00
string.S powerpc/lib: optimise PPC32 memcmp 2018-06-04 00:39:21 +10:00
strlen_32.S powerpc/lib: Implement strlen() in assembly for PPC32 2018-08-07 21:49:30 +10:00
test_emulate_step.c powerpc/sstep: Fix emulate_step test if VSX not present 2018-06-04 00:39:14 +10:00
vmx-helper.c powerpc/64: enhance memcmp() with VMX instruction for long bytes comparision 2018-07-24 22:03:21 +10:00
xor_vmx_glue.c powerpc/altivec: Add missing prototypes for altivec 2018-05-25 12:04:38 +10:00
xor_vmx.c powerpc/lib/xor_vmx: Ensure no altivec code executes before enable_kernel_altivec() 2017-06-02 20:17:52 +10:00
xor_vmx.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00