[U-Boot] [PATCH] JFFS2: Fix undefined reference to `__aeabi_uldivmod' error

[Chris Ruehl]

Wolfgang,

GOOD Catch!

On Sunday, October 27, 2013 05:14 PM, Wolfgang Denk wrote:
> Building boards that have JFFS2 support enabled will fail when using
> U-Boot's builtin GCC library, for example like this:
>
> USE_PRIVATE_LIBGCC=yes ./MAKEALL omap3_evm
> ...
> fs/jffs2/libjffs2.o: In function `jffs2_1pass_build_lists':
> fs/jffs2/jffs2_1pass.c:1441: undefined reference to `__aeabi_uldivmod'
>
> This is caused by a u64 / u32 division in jffs2_1pass.c; the problem
> can be avoided by using do_div() instead of plain division.
>
> Signed-off-by: Wolfgang Denk<wd at denx.de>
> Reported-by: Chris Ruehl<chris.ruehl at gtsys.com.hk>
> Cc: Chris Ruehl<chris.ruehl at gtsys.com.hk>
>
> ---
>   fs/jffs2/jffs2_1pass.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/fs/jffs2/jffs2_1pass.c b/fs/jffs2/jffs2_1pass.c
> index c856983..a7dbe79 100644
> --- a/fs/jffs2/jffs2_1pass.c
> +++ b/fs/jffs2/jffs2_1pass.c
> @@ -1438,7 +1438,7 @@ jffs2_1pass_build_lists(struct part_info * part)
>   {
>   	struct b_lists *pL;
>   	struct jffs2_unknown_node *node;
> -	u32 nr_sectors = part->size/part->sector_size;
> +	u32 nr_sectors = do_div(part->size, part->sector_size);
>   	u32 i;
>   	u32 counter4 = 0;
>   	u32 counterF = 0;