linux-kernel - [PATCH v2 2/2] ubifs: Simplify the code using ubifs_crc

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Message-Id: <20250812021009.414756-3-zhao.xichao@vivo.com>
Date: Tue, 12 Aug 2025 10:10:08 +0800
From: Xichao Zhao <zhao.xichao@...o.com>
To: Richard Weinberger <richard@....at>,
	Zhihao Cheng <chengzhihao1@...wei.com>,
	linux-mtd@...ts.infradead.org (open list:UBI FILE SYSTEM (UBIFS)),
	linux-kernel@...r.kernel.org (open list)
Cc: Xichao Zhao <zhao.xichao@...o.com>
Subject: [PATCH v2 2/2] ubifs: Simplify the code using ubifs_crc_node

Replace part of the code using ubifs_crc_node.

Signed-off-by: Xichao Zhao <zhao.xichao@...o.com>
---
 fs/ubifs/io.c       | 9 ++-------
 fs/ubifs/recovery.c | 4 +---
 2 files changed, 3 insertions(+), 10 deletions(-)

diff --git a/fs/ubifs/io.c b/fs/ubifs/io.c
index e0dfe6827d65..6c6d68242779 100644
--- a/fs/ubifs/io.c
+++ b/fs/ubifs/io.c
@@ -327,8 +327,6 @@ int ubifs_check_node(const struct ubifs_info *c, const void *buf, int len,
  */
 void ubifs_pad(const struct ubifs_info *c, void *buf, int pad)
 {
-	uint32_t crc;
-
 	ubifs_assert(c, pad >= 0);
 
 	if (pad >= UBIFS_PAD_NODE_SZ) {
@@ -343,8 +341,7 @@ void ubifs_pad(const struct ubifs_info *c, void *buf, int pad)
 		ch->len = cpu_to_le32(UBIFS_PAD_NODE_SZ);
 		pad -= UBIFS_PAD_NODE_SZ;
 		pad_node->pad_len = cpu_to_le32(pad);
-		crc = crc32(UBIFS_CRC32_INIT, buf + 8, UBIFS_PAD_NODE_SZ - 8);
-		ch->crc = cpu_to_le32(crc);
+		ubifs_crc_node(buf, UBIFS_PAD_NODE_SZ);
 		memset(buf + UBIFS_PAD_NODE_SZ, 0, pad);
 	} else if (pad > 0)
 		/* Too little space, padding node won't fit */
@@ -469,7 +466,6 @@ void ubifs_prepare_node(struct ubifs_info *c, void *node, int len, int pad)
  */
 void ubifs_prep_grp_node(struct ubifs_info *c, void *node, int len, int last)
 {
-	uint32_t crc;
 	struct ubifs_ch *ch = node;
 	unsigned long long sqnum = next_sqnum(c);
 
@@ -483,8 +479,7 @@ void ubifs_prep_grp_node(struct ubifs_info *c, void *node, int len, int last)
 		ch->group_type = UBIFS_IN_NODE_GROUP;
 	ch->sqnum = cpu_to_le64(sqnum);
 	ch->padding[0] = ch->padding[1] = 0;
-	crc = crc32(UBIFS_CRC32_INIT, node + 8, len - 8);
-	ch->crc = cpu_to_le32(crc);
+	ubifs_crc_node(node, len);
 }
 
 /**
diff --git a/fs/ubifs/recovery.c b/fs/ubifs/recovery.c
index f0d51dd21c9e..b36dc9b032f4 100644
--- a/fs/ubifs/recovery.c
+++ b/fs/ubifs/recovery.c
@@ -1406,7 +1406,6 @@ static int fix_size_in_place(struct ubifs_info *c, struct size_entry *e)
 	union ubifs_key key;
 	int err, lnum, offs, len;
 	loff_t i_size;
-	uint32_t crc;
 
 	/* Locate the inode node LEB number and offset */
 	ino_key_init(c, &key, e->inum);
@@ -1428,8 +1427,7 @@ static int fix_size_in_place(struct ubifs_info *c, struct size_entry *e)
 	ino = c->sbuf + offs;
 	ino->size = cpu_to_le64(e->d_size);
 	len = le32_to_cpu(ino->ch.len);
-	crc = crc32(UBIFS_CRC32_INIT, (void *)ino + 8, len - 8);
-	ino->ch.crc = cpu_to_le32(crc);
+	ubifs_crc_node((void *)ino, len);
 	/* Work out where data in the LEB ends and free space begins */
 	p = c->sbuf;
 	len = c->leb_size - 1;
-- 
2.34.1