linux-kernel - [PATCH v1 09/13] lib/raid6: Clean up code style in mmx.c

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Message-Id: <20250815015404.468511-10-zhao.xichao@vivo.com>
Date: Fri, 15 Aug 2025 09:53:58 +0800
From: Xichao Zhao <zhao.xichao@...o.com>
To: Song Liu <song@...nel.org>,
	Yu Kuai <yukuai3@...wei.com>,
	linux-raid@...r.kernel.org (open list:SOFTWARE RAID (Multiple Disks) SUPPORT),
	linux-kernel@...r.kernel.org (open list)
Cc: Xichao Zhao <zhao.xichao@...o.com>
Subject: [PATCH v1 09/13] lib/raid6: Clean up code style in mmx.c

Reduce or add spaces to clean up code style.
No functional changes here.

Signed-off-by: Xichao Zhao <zhao.xichao@...o.com>
---
 lib/raid6/mmx.c | 24 ++++++++++++------------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/lib/raid6/mmx.c b/lib/raid6/mmx.c
index 3a5bf53a297b..91e5ae78759e 100644
--- a/lib/raid6/mmx.c
+++ b/lib/raid6/mmx.c
@@ -39,18 +39,18 @@ static void raid6_mmx1_gen_syndrome(int disks, size_t bytes, void **ptrs)
 	int d, z, z0;
 
 	z0 = disks - 3;		/* Highest data disk */
-	p = dptr[z0+1];		/* XOR parity */
-	q = dptr[z0+2];		/* RS syndrome */
+	p = dptr[z0 + 1];	/* XOR parity */
+	q = dptr[z0 + 2];	/* RS syndrome */
 
 	kernel_fpu_begin();
 
 	asm volatile("movq %0,%%mm0" : : "m" (raid6_mmx_constants.x1d));
 	asm volatile("pxor %mm5,%mm5");	/* Zero temp */
 
-	for ( d = 0 ; d < bytes ; d += 8 ) {
+	for (d = 0; d < bytes; d += 8) {
 		asm volatile("movq %0,%%mm2" : : "m" (dptr[z0][d])); /* P[0] */
 		asm volatile("movq %mm2,%mm4");	/* Q[0] */
-		for ( z = z0-1 ; z >= 0 ; z-- ) {
+		for (z = z0 - 1; z >= 0; z--) {
 			asm volatile("movq %0,%%mm6" : : "m" (dptr[z][d]));
 			asm volatile("pcmpgtb %mm4,%mm5");
 			asm volatile("paddb %mm4,%mm4");
@@ -87,8 +87,8 @@ static void raid6_mmx2_gen_syndrome(int disks, size_t bytes, void **ptrs)
 	int d, z, z0;
 
 	z0 = disks - 3;		/* Highest data disk */
-	p = dptr[z0+1];		/* XOR parity */
-	q = dptr[z0+2];		/* RS syndrome */
+	p = dptr[z0 + 1];	/* XOR parity */
+	q = dptr[z0 + 2];	/* RS syndrome */
 
 	kernel_fpu_begin();
 
@@ -96,12 +96,12 @@ static void raid6_mmx2_gen_syndrome(int disks, size_t bytes, void **ptrs)
 	asm volatile("pxor %mm5,%mm5");	/* Zero temp */
 	asm volatile("pxor %mm7,%mm7"); /* Zero temp */
 
-	for ( d = 0 ; d < bytes ; d += 16 ) {
+	for (d = 0; d < bytes; d += 16) {
 		asm volatile("movq %0,%%mm2" : : "m" (dptr[z0][d])); /* P[0] */
-		asm volatile("movq %0,%%mm3" : : "m" (dptr[z0][d+8]));
+		asm volatile("movq %0,%%mm3" : : "m" (dptr[z0][d + 8]));
 		asm volatile("movq %mm2,%mm4"); /* Q[0] */
 		asm volatile("movq %mm3,%mm6"); /* Q[1] */
-		for ( z = z0-1 ; z >= 0 ; z-- ) {
+		for (z = z0 - 1; z >= 0; z--) {
 			asm volatile("pcmpgtb %mm4,%mm5");
 			asm volatile("pcmpgtb %mm6,%mm7");
 			asm volatile("paddb %mm4,%mm4");
@@ -111,7 +111,7 @@ static void raid6_mmx2_gen_syndrome(int disks, size_t bytes, void **ptrs)
 			asm volatile("pxor %mm5,%mm4");
 			asm volatile("pxor %mm7,%mm6");
 			asm volatile("movq %0,%%mm5" : : "m" (dptr[z][d]));
-			asm volatile("movq %0,%%mm7" : : "m" (dptr[z][d+8]));
+			asm volatile("movq %0,%%mm7" : : "m" (dptr[z][d + 8]));
 			asm volatile("pxor %mm5,%mm2");
 			asm volatile("pxor %mm7,%mm3");
 			asm volatile("pxor %mm5,%mm4");
@@ -120,9 +120,9 @@ static void raid6_mmx2_gen_syndrome(int disks, size_t bytes, void **ptrs)
 			asm volatile("pxor %mm7,%mm7");
 		}
 		asm volatile("movq %%mm2,%0" : "=m" (p[d]));
-		asm volatile("movq %%mm3,%0" : "=m" (p[d+8]));
+		asm volatile("movq %%mm3,%0" : "=m" (p[d + 8]));
 		asm volatile("movq %%mm4,%0" : "=m" (q[d]));
-		asm volatile("movq %%mm6,%0" : "=m" (q[d+8]));
+		asm volatile("movq %%mm6,%0" : "=m" (q[d + 8]));
 	}
 
 	kernel_fpu_end();
-- 
2.34.1