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| author |  Nicholas Piggin <npiggin@gmail.com>
| 2020-02-26 03:35:33 +1000 |
|---|---|---|
| committer |  Michael Ellerman <mpe@ellerman.id.au>
| 2020-04-01 13:42:13 +1100 |
| commit | f14f8a2032af8c38440afa68ccd0586532ec61d5 (patch) | |
| tree | 7de13439a79bfad94b2026461018cbf5ffe221aa /arch/powerpc/lib/sstep.c | |
| parent | powerpc/64/syscall: Remove non-volatile GPR save optimisation (diff) | |
| download | linux-f14f8a2032af8c38440afa68ccd0586532ec61d5.tar.gz linux-f14f8a2032af8c38440afa68ccd0586532ec61d5.tar.bz2 linux-f14f8a2032af8c38440afa68ccd0586532ec61d5.zip | |
powerpc/64/sstep: Ifdef the deprecated fast endian switch syscall
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200225173541.1549955-25-npiggin@gmail.com
Diffstat (limited to 'arch/powerpc/lib/sstep.c')
| -rw-r--r-- | arch/powerpc/lib/sstep.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index c077acb983a1..5f3a7bd9d90d 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -3179,8 +3179,9 @@ int emulate_step(struct pt_regs *regs, unsigned int instr) * entry code works. If that is changed, this will * need to be changed also. */ - if (regs->gpr[0] == 0x1ebe && - cpu_has_feature(CPU_FTR_REAL_LE)) { + if (IS_ENABLED(CONFIG_PPC_FAST_ENDIAN_SWITCH) && + cpu_has_feature(CPU_FTR_REAL_LE) && + regs->gpr[0] == 0x1ebe) { regs->msr ^= MSR_LE; goto instr_done; } |