From: Simon Glass <simon.glass@canonical.com> The crc16() stub always returns 0, which causes group-descriptor checksum-verification to fail for filesystems using the old CRC16 checksum algorithm (gdt_csum feature without metadata_csum). Replace the stub with U-Boot's real CRC16 implementation to allow mounting these filesystems. Co-developed-by: Claude Opus 4.5 <noreply@anthropic.com> Signed-off-by: Simon Glass <simon.glass@canonical.com> --- fs/ext4l/ext4_uboot.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/fs/ext4l/ext4_uboot.h b/fs/ext4l/ext4_uboot.h index df26c02b54d..ba4b4266daa 100644 --- a/fs/ext4l/ext4_uboot.h +++ b/fs/ext4l/ext4_uboot.h @@ -2143,8 +2143,8 @@ struct fs_parse_result { /* ctype */ #include <linux/ctype.h> -/* crc16 */ -#define crc16(crc, buf, len) (0) +/* crc16 - use U-Boot's implementation */ +#include <linux/crc16.h> /* Timer and timing stubs */ #define HZ 1000 -- 2.43.0