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| author | Namhyung Kim <namhyung@gmail.com> | 2011-06-20 13:27:45 +0200 |
|---|---|---|
| committer | Jens Axboe <jaxboe@fusionio.com> | 2011-06-20 13:27:45 +0200 |
| commit | 2b727c6300b49352f80f63704bb50c256949e95e (patch) | |
| tree | 42e688cb7668c19bbd67673f34aa3bc3d162a8dc /block | |
| parent | 44194e3e88fcfe77a2a6e2333847d4f27816259a (diff) | |
| download | lwn-2b727c6300b49352f80f63704bb50c256949e95e.tar.gz lwn-2b727c6300b49352f80f63704bb50c256949e95e.zip | |
bsg: fix address space warning from sparse
copy_from/to_user() and blk_rq_map_user() want __user pointer.
This patch fixes following warnings from sparse:
CHECK block/bsg.c
block/bsg.c:185:38: warning: incorrect type in argument 2 (different address spaces)
block/bsg.c:185:38: expected void const [noderef] <asn:1>*from
block/bsg.c:185:38: got void *<noident>
block/bsg.c:295:58: warning: incorrect type in argument 4 (different address spaces)
block/bsg.c:295:58: expected void [noderef] <asn:1>*<noident>
block/bsg.c:295:58: got void *[assigned] dxferp
block/bsg.c:311:52: warning: incorrect type in argument 4 (different address spaces)
block/bsg.c:311:52: expected void [noderef] <asn:1>*<noident>
block/bsg.c:311:52: got void *[assigned] dxferp
block/bsg.c:448:37: warning: incorrect type in argument 1 (different address spaces)
block/bsg.c:448:37: expected void [noderef] <asn:1>*dst
block/bsg.c:448:37: got void *<noident>
Signed-off-by: Namhyung Kim <namhyung@gmail.com>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: Jens Axboe <jaxboe@fusionio.com>
Diffstat (limited to 'block')
| -rw-r--r-- | block/bsg.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/block/bsg.c b/block/bsg.c index b7e42ad55361..702f1316bb8f 100644 --- a/block/bsg.c +++ b/block/bsg.c @@ -182,7 +182,7 @@ static int blk_fill_sgv4_hdr_rq(struct request_queue *q, struct request *rq, return -ENOMEM; } - if (copy_from_user(rq->cmd, (void *)(unsigned long)hdr->request, + if (copy_from_user(rq->cmd, (void __user *)(unsigned long)hdr->request, hdr->request_len)) return -EFAULT; @@ -249,7 +249,7 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm, struct request *rq, *next_rq = NULL; int ret, rw; unsigned int dxfer_len; - void *dxferp = NULL; + void __user *dxferp = NULL; struct bsg_class_device *bcd = &q->bsg_dev; /* if the LLD has been removed then the bsg_unregister_queue will @@ -291,7 +291,7 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm, rq->next_rq = next_rq; next_rq->cmd_type = rq->cmd_type; - dxferp = (void*)(unsigned long)hdr->din_xferp; + dxferp = (void __user *)(unsigned long)hdr->din_xferp; ret = blk_rq_map_user(q, next_rq, NULL, dxferp, hdr->din_xfer_len, GFP_KERNEL); if (ret) @@ -300,10 +300,10 @@ bsg_map_hdr(struct bsg_device *bd, struct sg_io_v4 *hdr, fmode_t has_write_perm, if (hdr->dout_xfer_len) { dxfer_len = hdr->dout_xfer_len; - dxferp = (void*)(unsigned long)hdr->dout_xferp; + dxferp = (void __user *)(unsigned long)hdr->dout_xferp; } else if (hdr->din_xfer_len) { dxfer_len = hdr->din_xfer_len; - dxferp = (void*)(unsigned long)hdr->din_xferp; + dxferp = (void __user *)(unsigned long)hdr->din_xferp; } else dxfer_len = 0; @@ -445,7 +445,7 @@ static int blk_complete_sgv4_hdr_rq(struct request *rq, struct sg_io_v4 *hdr, int len = min_t(unsigned int, hdr->max_response_len, rq->sense_len); - ret = copy_to_user((void*)(unsigned long)hdr->response, + ret = copy_to_user((void __user *)(unsigned long)hdr->response, rq->sense, len); if (!ret) hdr->response_len = len; |