From 3108b54bcedde5d952c90460df5bc21efc1e134f Mon Sep 17 00:00:00 2001 From: Theodore Ts'o Date: Sun, 22 Jul 2012 20:25:31 -0400 Subject: [PATCH] ext4: remove dynamic array size in ext4_chksum() The ext4_checksum() inline function was using a dynamic array size, which is not legal C. (It is a gcc extension). Remove it. Cc: "Darrick J. Wong" Signed-off-by: "Theodore Ts'o" --- fs/ext4/ext4.h | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h index 1610e808ebe3..e8e8afa402f1 100644 --- a/fs/ext4/ext4.h +++ b/fs/ext4/ext4.h @@ -1667,10 +1667,12 @@ static inline u32 ext4_chksum(struct ext4_sb_info *sbi, u32 crc, { struct { struct shash_desc shash; - char ctx[crypto_shash_descsize(sbi->s_chksum_driver)]; + char ctx[4]; } desc; int err; + BUG_ON(crypto_shash_descsize(sbi->s_chksum_driver)!=sizeof(desc.ctx)); + desc.shash.tfm = sbi->s_chksum_driver; desc.shash.flags = 0; *(u32 *)desc.ctx = crc; -- 2.30.2