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blk-mq: make blk_mq_hw_ctx_sysfs_entry instances const 

The blk_mq_hw_ctx_sysfs_entry structures are never modified,
mark them as const.

Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Reviewed-by: John Garry <john.g.garry@oracle.com>
Link: https://patch.msgid.link/20260316-b4-sysfs-const-attr-block-v1-4-a35d73b986b0@weissschuh.net
Signed-off-by: Jens Axboe <axboe@kernel.dk>
master
Thomas Weißschuh 2026-03-16 23:43:54 +01:00 committed by Jens Axboe
parent f00d826f1b
commit 3141e0e536
1 changed files with 5 additions and 5 deletions
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10
block/blk-mq-sysfs.c
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@ -53,7 +53,7 @@ static ssize_t blk_mq_hw_sysfs_show(struct kobject *kobj,
struct request_queue *q; struct request_queue *q;
ssize_t res; ssize_t res;
entry = container_of(attr, struct blk_mq_hw_ctx_sysfs_entry, attr); entry = container_of_const(attr, struct blk_mq_hw_ctx_sysfs_entry, attr);
hctx = container_of(kobj, struct blk_mq_hw_ctx, kobj); hctx = container_of(kobj, struct blk_mq_hw_ctx, kobj);
q = hctx->queue; q = hctx->queue;
@ -101,20 +101,20 @@ static ssize_t blk_mq_hw_sysfs_cpus_show(struct blk_mq_hw_ctx *hctx, char *page)
return pos + ret; return pos + ret;
} }
static struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_nr_tags = { static const struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_nr_tags = {
.attr = {.name = "nr_tags", .mode = 0444 }, .attr = {.name = "nr_tags", .mode = 0444 },
.show = blk_mq_hw_sysfs_nr_tags_show, .show = blk_mq_hw_sysfs_nr_tags_show,
}; };
static struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_nr_reserved_tags = { static const struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_nr_reserved_tags = {
.attr = {.name = "nr_reserved_tags", .mode = 0444 }, .attr = {.name = "nr_reserved_tags", .mode = 0444 },
.show = blk_mq_hw_sysfs_nr_reserved_tags_show, .show = blk_mq_hw_sysfs_nr_reserved_tags_show,
}; };
static struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_cpus = { static const struct blk_mq_hw_ctx_sysfs_entry blk_mq_hw_sysfs_cpus = {
.attr = {.name = "cpu_list", .mode = 0444 }, .attr = {.name = "cpu_list", .mode = 0444 },
.show = blk_mq_hw_sysfs_cpus_show, .show = blk_mq_hw_sysfs_cpus_show,
}; };
static struct attribute *default_hw_ctx_attrs[] = { static const struct attribute *const default_hw_ctx_attrs[] = {
&blk_mq_hw_sysfs_nr_tags.attr, &blk_mq_hw_sysfs_nr_tags.attr,
&blk_mq_hw_sysfs_nr_reserved_tags.attr, &blk_mq_hw_sysfs_nr_reserved_tags.attr,
&blk_mq_hw_sysfs_cpus.attr, &blk_mq_hw_sysfs_cpus.attr,