Thanks. Jens Axboe said about it to Dan Carpenter that ...
> It was fixed up yesterday, it was a merge error in the for-next branch.
On Mar 27, 2013, at 3:14 AM, Chen Gang wrote:
> Hello Ed L. Cashin
>
> when compiling with EXTRA_CFLAGS=-W
>
> get the warning:
> drivers/block/aoe/aoecmd.c:931:20: warning: ‘bv’ is used uninitialized in
> this function [-Wuninitialized]
>
> bv is really not initialized.
> (and it seems only set "buf->bv_resid = 0" is not enough).
>
> thanks.
>
> gchen.
>
> 919 static void
> 920 bufinit(struct buf *buf, struct request *rq, struct bio *bio)
> 921 {
> 922 struct bio_vec *bv;
> 923
> 924 memset(buf, 0, sizeof(*buf));
> 925 buf->rq = rq;
> 926 buf->bio = bio;
> 927 buf->resid = bio->bi_size;
> 928 buf->sector = bio->bi_sector;
> 929 bio_pageinc(bio);
> 930 buf->bv = bio_iovec(bio);
> 931 buf->bv_resid = bv->bv_len;
> 932 WARN_ON(buf->bv_resid == 0);
> 933 }
>
>
--
Ed Cashin
ecas...@coraid.com
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