linux-kernel - [PATCH -next] hpfs: convert to use le32_add

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Date:   Sat, 25 Jul 2020 16:56:13 +0800
From:   Qinglang Miao <miaoqinglang@...wei.com>
To:     Mikulas Patocka <mikulas@...ax.karlin.mff.cuni.cz>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
CC:     <linux-kernel@...r.kernel.org>
Subject: [PATCH -next] hpfs: convert to use le32_add_cpu()

Convert cpu_to_le16(le16_to_cpu(E1) + E2) to use le16_add_cpu().

Signed-off-by: Qinglang Miao <miaoqinglang@...wei.com>
---
 fs/hpfs/dnode.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/hpfs/dnode.c b/fs/hpfs/dnode.c
index 4ada525c5..76f539601 100644
--- a/fs/hpfs/dnode.c
+++ b/fs/hpfs/dnode.c
@@ -208,7 +208,7 @@ static void hpfs_delete_de(struct super_block *s, struct dnode *d,
 		hpfs_error(s, "attempt to delete last dirent in dnode %08x", le32_to_cpu(d->self));
 		return;
 	}
-	d->first_free = cpu_to_le32(le32_to_cpu(d->first_free) - le16_to_cpu(de->length));
+	le32_add_cpu(&d->first_free, -le16_to_cpu(de->length));
 	memmove(de, de_next_de(de), le32_to_cpu(d->first_free) + (char *)d - (char *)de);
 }
 
-- 
2.25.1