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| author | Jordan Niethe <jniethe5@gmail.com> | 2020-05-06 05:40:32 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-05-18 16:10:37 +0200 |
| commit | f8faaffaa7d99028e457ef2d1dcb43a98f736938 (patch) | |
| tree | 0e987e7b6862e3412816dec98b222f036931cdc8 /arch/powerpc/include/asm/inst.h | |
| parent | powerpc: Use a datatype for instructions (diff) | |
| download | linux-f8faaffaa7d99028e457ef2d1dcb43a98f736938.tar.xz linux-f8faaffaa7d99028e457ef2d1dcb43a98f736938.zip | |
powerpc: Use a function for reading instructions
Prefixed instructions will mean there are instructions of different
length. As a result dereferencing a pointer to an instruction will not
necessarily give the desired result. Introduce a function for reading
instructions from memory into the instruction data type.
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Reviewed-by: Alistair Popple <alistair@popple.id.au>
Link: https://lore.kernel.org/r/20200506034050.24806-13-jniethe5@gmail.com
Diffstat (limited to 'arch/powerpc/include/asm/inst.h')
| -rw-r--r-- | arch/powerpc/include/asm/inst.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/inst.h b/arch/powerpc/include/asm/inst.h index f602ca908936..f9cbb24d2e34 100644 --- a/arch/powerpc/include/asm/inst.h +++ b/arch/powerpc/include/asm/inst.h @@ -27,6 +27,11 @@ static inline struct ppc_inst ppc_inst_swab(struct ppc_inst x) return ppc_inst(swab32(ppc_inst_val(x))); } +static inline struct ppc_inst ppc_inst_read(const struct ppc_inst *ptr) +{ + return *ptr; +} + static inline bool ppc_inst_equal(struct ppc_inst x, struct ppc_inst y) { return ppc_inst_val(x) == ppc_inst_val(y); |