On Mon, 2020-04-06 at 18:09 +1000, Jordan Niethe wrote:
> Use a function for byte swapping instructions in preparation of a more
> complicated instruction type.
Reviewed-by: Balamuruhan S <bal...@linux.ibm.com>
>
> Signed-off-by: Jordan Niethe <jniet...@gmail.com>
> ---
> arch/powerpc/include/asm/inst.h | 5 +++++
> arch/powerpc/kernel/align.c | 2 +-
> 2 files changed, 6 insertions(+), 1 deletion(-)
>
> diff --git a/arch/powerpc/include/asm/inst.h
> b/arch/powerpc/include/asm/inst.h
> index 15f570bef936..78eb1481f1f6 100644
> --- a/arch/powerpc/include/asm/inst.h
> +++ b/arch/powerpc/include/asm/inst.h
> @@ -18,4 +18,9 @@ static inline int ppc_inst_opcode(u32 x)
> return x >> 26;
> }
>
> +static inline u32 ppc_inst_swab(u32 x)
> +{
> + return ppc_inst(swab32(ppc_inst_val(x)));
> +}
> +
> #endif /* _ASM_INST_H */
> diff --git a/arch/powerpc/kernel/align.c b/arch/powerpc/kernel/align.c
> index a83d32c6513d..46870cf6a6dc 100644
> --- a/arch/powerpc/kernel/align.c
> +++ b/arch/powerpc/kernel/align.c
> @@ -310,7 +310,7 @@ int fix_alignment(struct pt_regs *regs)
> /* We don't handle PPC little-endian any more... */
> if (cpu_has_feature(CPU_FTR_PPC_LE))
> return -EIO;
> - instr = swab32(instr);
> + instr = ppc_inst_swab(instr);
> }
>
> #ifdef CONFIG_SPE
