[PATCH v4 22/23] powerpc32: small optimisation in flush_icache_range()

[Christophe Leroy]

Inlining of _dcache_range() functions has shown that the compiler
does the same thing a bit better with one insn less

Signed-off-by: Christophe Leroy <christophe.leroy at c-s.fr>
---
v2: new
v3: no change
v4: no change

 arch/powerpc/kernel/misc_32.S | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index 1728f61..1597424 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -348,10 +348,9 @@ BEGIN_FTR_SECTION
 	PURGE_PREFETCHED_INS
 	blr				/* for 601, do nothing */
 END_FTR_SECTION_IFSET(CPU_FTR_COHERENT_ICACHE)
-	li	r5,L1_CACHE_BYTES-1
-	andc	r3,r3,r5
+	rlwinm	r3,r3,0,0,31 - L1_CACHE_SHIFT
 	subf	r4,r3,r4
-	add	r4,r4,r5
+	addi	r4,r4,L1_CACHE_BYTES - 1
 	srwi.	r4,r4,L1_CACHE_SHIFT
 	beqlr
 	mtctr	r4
-- 
2.1.0