Re: linux-next: build failure after merge of the final tree (mdtree related)

From: NeilBrown
Date: Sun Apr 22 2012 - 20:18:38 EST


On Fri, 20 Apr 2012 15:34:48 +1000 Stephen Rothwell <sfr@xxxxxxxxxxxxxxxx>
wrote:

> Hi Neil,
>
> After merging the final tree, today's linux-next build (i386 defconfig)
> failed like this:
>
> drivers/built-in.o: In function `bitmap_resize':
> (.text+0x202b76): undefined reference to `__udivdi3'
> drivers/built-in.o: In function `bitmap_resize':
> (.text+0x202bac): undefined reference to `__udivdi3'
>
> Caused by commit 6c5cb1922cca ("md/bitmap: add bitmap_resize function to
> allow bitmap resizing").
>
> I also get these warnings:
>
> drivers/md/bitmap.c: In function 'bitmap_resize':
> drivers/md/bitmap.c:1878:11: warning: comparison of distinct pointer types lacks a cast [enabled by default]
> drivers/md/bitmap.c:1887:11: warning: passing argument 3 of 'bitmap_get_counter' from incompatible pointer type [enabled by default]
> drivers/md/bitmap.c:1225:26: note: expected 'sector_t *' but argument is of type 'long int *'
> drivers/md/bitmap.c:1892:12: warning: passing argument 3 of 'bitmap_get_counter' from incompatible pointer type [enabled by default]
> drivers/md/bitmap.c:1225:26: note: expected 'sector_t *' but argument is of type 'long int *'
> drivers/md/bitmap.c:1920:8: warning: passing argument 3 of 'bitmap_get_counter' from incompatible pointer type [enabled by default]
> drivers/md/bitmap.c:1225:26: note: expected 'sector_t *' but argument is of type 'long int *'
>
> I applied the patch below for the link failure, but the above warnings
> should be addressed as well.

Thanks Stephen. I've fixed all that up now - and done a test 32-bit
compile :-)

Thanks,
NeilBrown

Attachment: signature.asc
Description: PGP signature