Re: [PATCH v3] FAT: Allow 0xE9 near jump in fat_read_static_bpb()

[OGAWA Hirofumi]

Ziran Zhang <zhangcoder@xxxxxxxx> writes:

> Changes in v3:
> - Fix line length over 80 columns (split condition into two lines)
> - Correct version number from erroneous "v2 v2" to v3
>
> Signed-off-by: Ziran Zhang <zhangcoder@xxxxxxxx>

Could you add original commit log, instead of changelog?

Thanks.

> ---
>
> Please ignore the earlier erroneous "[PATCH v2 v2]" patch. 
> This is the corrected v3.
>
>  fs/fat/inode.c | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
>
> diff --git a/fs/fat/inode.c b/fs/fat/inode.c
> index 28f78df08..0e7d106ea 100644
> --- a/fs/fat/inode.c
> +++ b/fs/fat/inode.c
> @@ -1479,8 +1479,9 @@ static int fat_read_static_bpb(struct super_block *sb,
>  	int error = -EINVAL;
>  	unsigned i;
>  
> -	/* 16-bit DOS 1.x reliably wrote bootstrap short-jmp code */
> -	if (b->ignored[0] != 0xeb || b->ignored[2] != 0x90) {
> +	/* 16-bit DOS 1.x reliably wrote bootstrap short-jmp or near-jmp code */
> +	if ((b->ignored[0] != 0xeb || b->ignored[2] != 0x90) &&
> +	    (b->ignored[0] != 0xe9)) {
>  		if (!silent)
>  			fat_msg(sb, KERN_ERR,
>  				"%s; no bootstrapping code", notdos1x);

-- 
OGAWA Hirofumi <hirofumi@xxxxxxxxxxxxxxxxxx>