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| author |   Michael Ellerman <mpe@ellerman.id.au> | 2018-10-09 16:51:05 +1100 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-10-09 16:51:05 +1100 |
| commit | 9b7e4d601baac83a7104652042107ce94f245524 (patch) | |
| tree | 1ed938abb14fd861b5c28d6df90d7508a1cb5184 /arch/powerpc/lib | |
| parent | macintosh/via-macii, macintosh/adb-iop: Clean up whitespace (diff) | |
| parent | powerpc/numa: Skip onlining a offline node in kdump path (diff) | |
| download | linux-dev-9b7e4d601baac83a7104652042107ce94f245524.tar.xz linux-dev-9b7e4d601baac83a7104652042107ce94f245524.zip | |
Merge branch 'fixes' into next
Merge our fixes branch. It has a few important fixes that are needed for
futher testing and also some commits that will conflict with content in
next.
Diffstat (limited to 'arch/powerpc/lib')
| -rw-r--r-- | arch/powerpc/lib/checksum_64.S | 3 | ||||
| -rw-r--r-- | arch/powerpc/lib/code-patching.c | 14 |
2 files changed, 15 insertions, 2 deletions
diff --git a/arch/powerpc/lib/checksum_64.S b/arch/powerpc/lib/checksum_64.S index 886ed94b9c13..d05c8af4ac51 100644 --- a/arch/powerpc/lib/checksum_64.S +++ b/arch/powerpc/lib/checksum_64.S @@ -443,6 +443,9 @@ _GLOBAL(csum_ipv6_magic) addc r0, r8, r9 ld r10, 0(r4) ld r11, 8(r4) +#ifdef CONFIG_CPU_LITTLE_ENDIAN + rotldi r5, r5, 8 +#endif adde r0, r0, r10 add r5, r5, r7 adde r0, r0, r11 diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c index 850f3b8f4da5..5ffee298745f 100644 --- a/arch/powerpc/lib/code-patching.c +++ b/arch/powerpc/lib/code-patching.c @@ -142,7 +142,7 @@ static inline int unmap_patch_area(unsigned long addr) return 0; } -int patch_instruction(unsigned int *addr, unsigned int instr) +static int do_patch_instruction(unsigned int *addr, unsigned int instr) { int err; unsigned int *patch_addr = NULL; @@ -182,12 +182,22 @@ out: } #else /* !CONFIG_STRICT_KERNEL_RWX */ -int patch_instruction(unsigned int *addr, unsigned int instr) +static int do_patch_instruction(unsigned int *addr, unsigned int instr) { return raw_patch_instruction(addr, instr); } #endif /* CONFIG_STRICT_KERNEL_RWX */ + +int patch_instruction(unsigned int *addr, unsigned int instr) +{ + /* Make sure we aren't patching a freed init section */ + if (init_mem_is_free && init_section_contains(addr, 4)) { + pr_debug("Skipping init section patching addr: 0x%px\n", addr); + return 0; + } + return do_patch_instruction(addr, instr); +} NOKPROBE_SYMBOL(patch_instruction); int patch_branch(unsigned int *addr, unsigned long target, int flags) |