diff options
| author | Jordan Niethe <jniethe5@gmail.com> | 2020-05-15 12:12:55 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-19 00:10:39 +1000 |
| commit | 650b55b707fdfa764e9f2b81314d3eb4216fb962 (patch) | |
| tree | 33027daca271c94467f02d17945afc0517929171 /arch/powerpc/kernel/crash_dump.c | |
| parent | 7a8818e0df5c6b53c89c7c928498668a2bbb3de0 (diff) | |
| download | linux-650b55b707fdfa764e9f2b81314d3eb4216fb962.tar.bz2 | |
powerpc: Add prefixed instructions to instruction data type
For powerpc64, redefine the ppc_inst type so both word and prefixed
instructions can be represented. On powerpc32 the type will remain the
same. Update places which had assumed instructions to be 4 bytes long.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Reviewed-by: Alistair Popple <alistair@popple.id.au>
[mpe: Rework the get_user_inst() macros to be parameterised, and don't
assign to the dest if an error occurred. Use CONFIG_PPC64 not
__powerpc64__ in a few places. Address other comments from
Christophe. Fix some sparse complaints.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200506034050.24806-24-jniethe5@gmail.com
Diffstat (limited to 'arch/powerpc/kernel/crash_dump.c')
| -rw-r--r-- | arch/powerpc/kernel/crash_dump.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c index 72bafb47e757..735e89337398 100644 --- a/arch/powerpc/kernel/crash_dump.c +++ b/arch/powerpc/kernel/crash_dump.c @@ -46,7 +46,7 @@ static void __init create_trampoline(unsigned long addr) * two instructions it doesn't require any registers. */ patch_instruction(p, ppc_inst(PPC_INST_NOP)); - patch_branch(++p, addr + PHYSICAL_START, 0); + patch_branch((void *)p + 4, addr + PHYSICAL_START, 0); } void __init setup_kdump_trampoline(void) |