diff options
Diffstat (limited to 'arch/powerpc/kernel/vdso64/cacheflush.S')
| -rw-r--r-- | arch/powerpc/kernel/vdso64/cacheflush.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/vdso64/cacheflush.S b/arch/powerpc/kernel/vdso64/cacheflush.S index d4a0ad28d53..cb4ae0a5edd 100644 --- a/arch/powerpc/kernel/vdso64/cacheflush.S +++ b/arch/powerpc/kernel/vdso64/cacheflush.S @@ -35,6 +35,7 @@ V_FUNCTION_BEGIN(__kernel_sync_dicache) subf r8,r6,r4 /* compute length */ add r8,r8,r5 /* ensure we get enough */ srwi. r8,r8,7 /* compute line count */ + crclr cr0*4+so beqlr /* nothing to do? */ mtctr r8 mr r3,r6 @@ -58,6 +59,7 @@ V_FUNCTION_END(__kernel_sync_dicache) */ V_FUNCTION_BEGIN(__kernel_sync_dicache_p5) .cfi_startproc + crclr cr0*4+so sync isync li r3,0 |