The comment that the source and target register can not be the same is wrong. Instead on PA2.0 use of extru can clobber upper 32-bits. This patch fixes the comment. Signed-off-by: Helge Deller <deller@xxxxxx> --- arch/parisc/include/asm/assembly.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/parisc/include/asm/assembly.h b/arch/parisc/include/asm/assembly.h index ea0cb318b13d..be784b41048c 100644 --- a/arch/parisc/include/asm/assembly.h +++ b/arch/parisc/include/asm/assembly.h @@ -143,7 +143,7 @@ depd,z \r, 63-(\sa), 64-(\sa), \t .endm - /* Shift Right - note the r and t can NOT be the same! */ + /* Shift Right for 32-bit. Clobbers upper 32-bit on PA2.0. */ .macro shr r, sa, t extru \r, 31-(\sa), 32-(\sa), \t .endm -- 2.35.3
