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nvme: remove nssa from struct nvme_ctrl

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The reported number of streams is not used outside the function that
gets it, so no need to stash it in the controller structure. Use a local
variable instead.

Signed-off-by: Keith Busch <kbusch@kernel.org>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
This commit is contained in:
Keith Busch 2022-02-15 07:37:19 -08:00 committed by Christoph Hellwig
parent 1c3adf0de1
commit 0a9f850061
2 changed files with 5 additions and 5 deletions
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9
drivers/nvme/host/core.c
View File

@ -790,6 +790,7 @@ static int nvme_get_stream_params(struct nvme_ctrl *ctrl,
static int nvme_configure_directives(struct nvme_ctrl *ctrl)
{
struct streams_directive_params s;
u16 nssa;
int ret;
if (!(ctrl->oacs & NVME_CTRL_OACS_DIRECTIVES))
@ -805,16 +806,16 @@ static int nvme_configure_directives(struct nvme_ctrl *ctrl)
if (ret)
goto out_disable_stream;
ctrl->nssa = le16_to_cpu(s.nssa);
if (ctrl->nssa < BLK_MAX_WRITE_HINTS - 1) {
nssa = le16_to_cpu(s.nssa);
if (nssa < BLK_MAX_WRITE_HINTS - 1) {
dev_info(ctrl->device, "too few streams (%u) available\n",
ctrl->nssa);
nssa);
/* this condition is not an error: streams are optional */
ret = 0;
goto out_disable_stream;
}
ctrl->nr_streams = min_t(u16, ctrl->nssa, BLK_MAX_WRITE_HINTS - 1);
ctrl->nr_streams = min_t(u16, nssa, BLK_MAX_WRITE_HINTS - 1);
dev_info(ctrl->device, "Using %u streams\n", ctrl->nr_streams);
return 0;

1
drivers/nvme/host/nvme.h
View File

@ -280,7 +280,6 @@ struct nvme_ctrl {
u16 crdt[3];
u16 oncs;
u16 oacs;
u16 nssa;
u16 nr_streams;
u16 sqsize;
u32 max_namespaces;