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author | 2020-05-06 13:40:34 +1000 | |
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committer | 2020-05-19 00:10:37 +1000 | |
commit | 95b980a00d1220ca67550a933166704db8bc5c14 (patch) | |
tree | 2e049da522701c72aa1432aae51331f77969100c /arch/powerpc/include/asm/inst.h | |
parent | powerpc: Add a probe_user_read_inst() function (diff) | |
download | linux-95b980a00d1220ca67550a933166704db8bc5c14.tar.gz linux-95b980a00d1220ca67550a933166704db8bc5c14.tar.bz2 linux-95b980a00d1220ca67550a933166704db8bc5c14.zip |
powerpc: Add a probe_kernel_read_inst() function
Introduce a probe_kernel_read_inst() function to use in cases where
probe_kernel_read() is used for getting an instruction. This will be
more useful for prefixed instructions.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Reviewed-by: Alistair Popple <alistair@popple.id.au>
[mpe: Don't write to *inst on error]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200506034050.24806-15-jniethe5@gmail.com
Diffstat (limited to 'arch/powerpc/include/asm/inst.h')
-rw-r--r-- | arch/powerpc/include/asm/inst.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/inst.h b/arch/powerpc/include/asm/inst.h index 4db0ecee2698..e7e779805090 100644 --- a/arch/powerpc/include/asm/inst.h +++ b/arch/powerpc/include/asm/inst.h @@ -40,4 +40,7 @@ static inline bool ppc_inst_equal(struct ppc_inst x, struct ppc_inst y) int probe_user_read_inst(struct ppc_inst *inst, struct ppc_inst __user *nip); +int probe_kernel_read_inst(struct ppc_inst *inst, + struct ppc_inst *src); + #endif /* _ASM_POWERPC_INST_H */ |