From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Kevin Wolf" <kwolf@redhat.com>, "Fam Zheng" <fam@euphon.net>,
qemu-block@nongnu.org, "Max Reitz" <mreitz@redhat.com>,
"Stefan Hajnoczi" <stefanha@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>,
"Stefano Garzarella" <sgarzare@redhat.com>
Subject: [PATCH v6 07/15] block/nvme: Rename local variable
Date: Fri, 21 Aug 2020 21:53:51 +0200 [thread overview]
Message-ID: <20200821195359.1285345-8-philmd@redhat.com> (raw)
In-Reply-To: <20200821195359.1285345-1-philmd@redhat.com>
We are going to modify the code in the next commit. Renaming
the 'resp' variable to 'id' first makes the next commit easier
to review. No logical changes.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
block/nvme.c | 19 +++++++++----------
1 file changed, 9 insertions(+), 10 deletions(-)
diff --git a/block/nvme.c b/block/nvme.c
index 419178adda3..15c5202c03c 100644
--- a/block/nvme.c
+++ b/block/nvme.c
@@ -510,8 +510,8 @@ static void nvme_identify(BlockDriverState *bs, int namespace, Error **errp)
BDRVNVMeState *s = bs->opaque;
NvmeIdCtrl *idctrl;
NvmeIdNs *idns;
+ uint8_t *id;
NvmeLBAF *lbaf;
- uint8_t *resp;
uint16_t oncs;
int r;
uint64_t iova;
@@ -520,14 +520,14 @@ static void nvme_identify(BlockDriverState *bs, int namespace, Error **errp)
.cdw10 = cpu_to_le32(0x1),
};
- resp = qemu_try_blockalign0(bs, sizeof(NvmeIdCtrl));
- if (!resp) {
+ id = qemu_try_blockalign0(bs, sizeof(NvmeIdCtrl));
+ if (!id) {
error_setg(errp, "Cannot allocate buffer for identify response");
goto out;
}
- idctrl = (NvmeIdCtrl *)resp;
- idns = (NvmeIdNs *)resp;
- r = qemu_vfio_dma_map(s->vfio, resp, sizeof(NvmeIdCtrl), true, &iova);
+ idctrl = (NvmeIdCtrl *)id;
+ idns = (NvmeIdNs *)id;
+ r = qemu_vfio_dma_map(s->vfio, id, sizeof(NvmeIdCtrl), true, &iova);
if (r) {
error_setg(errp, "Cannot map buffer for DMA");
goto out;
@@ -554,8 +554,7 @@ static void nvme_identify(BlockDriverState *bs, int namespace, Error **errp)
s->supports_write_zeroes = !!(oncs & NVME_ONCS_WRITE_ZEROS);
s->supports_discard = !!(oncs & NVME_ONCS_DSM);
- memset(resp, 0, 4096);
-
+ memset(id, 0, 4096);
cmd.cdw10 = 0;
cmd.nsid = cpu_to_le32(namespace);
if (nvme_cmd_sync(bs, s->queues[INDEX_ADMIN], &cmd)) {
@@ -587,8 +586,8 @@ static void nvme_identify(BlockDriverState *bs, int namespace, Error **errp)
s->blkshift = lbaf->ds;
out:
- qemu_vfio_dma_unmap(s->vfio, resp);
- qemu_vfree(resp);
+ qemu_vfio_dma_unmap(s->vfio, id);
+ qemu_vfree(id);
}
static bool nvme_poll_queues(BDRVNVMeState *s)
--
2.26.2
next prev parent reply other threads:[~2020-08-21 19:58 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-08-21 19:53 [PATCH v6 00/15] block/nvme: Various cleanups required to use multiple queues Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 01/15] block/nvme: Replace magic value by SCALE_MS definition Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 02/15] block/nvme: Avoid further processing if trace event not enabled Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 03/15] block/nvme: Let nvme_create_queue_pair() fail gracefully Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 04/15] block/nvme: Define INDEX macros to ease code review Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 05/15] block/nvme: Improve error message when IO queue creation failed Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 06/15] block/nvme: Use common error path in nvme_add_io_queue() Philippe Mathieu-Daudé
2020-08-21 19:53 ` Philippe Mathieu-Daudé [this message]
2020-08-21 19:53 ` [PATCH v6 08/15] block/nvme: Use union of NvmeIdCtrl / NvmeIdNs structures Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 09/15] block/nvme: Replace qemu_try_blockalign0 by qemu_try_blockalign/memset Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 10/15] block/nvme: Replace qemu_try_blockalign(bs) by qemu_try_memalign(pg_sz) Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 11/15] block/nvme: Simplify nvme_init_queue() arguments Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 12/15] block/nvme: Replace BDRV_POLL_WHILE by AIO_WAIT_WHILE Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 13/15] block/nvme: Simplify nvme_create_queue_pair() arguments Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 14/15] block/nvme: Extract nvme_poll_queue() Philippe Mathieu-Daudé
2020-08-21 19:53 ` [PATCH v6 15/15] block/nvme: Use an array of EventNotifier Philippe Mathieu-Daudé
2020-09-01 15:27 ` [PATCH v6 00/15] block/nvme: Various cleanups required to use multiple queues Philippe Mathieu-Daudé
2020-09-01 15:52 ` Kevin Wolf
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