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" <djwong@us.ibm.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>

parent 8a991849

fs/ext4/ext4.h

+3 −1

Original line number	Diff line number	Diff line
		@@ -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;