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io_uring/kbuf: kill dead struct io_buffer_list 'nr_entries' member

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This is only ever assigned, never used. The only used part is the
calculated mask, which is used for indexing. Kill 'nr_entries'.

Reviewed-by: Gabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
This commit is contained in:
Jens Axboe 2026-04-24 07:30:56 -06:00
parent 254f49634e
commit 55ea968389
2 changed files with 0 additions and 2 deletions
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1
io_uring/kbuf.c
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@ -680,7 +680,6 @@ int io_register_pbuf_ring(struct io_ring_ctx *ctx, void __user *arg)
}
#endif
bl->nr_entries = reg.ring_entries;
bl->mask = reg.ring_entries - 1;
bl->flags |= IOBL_BUF_RING;
bl->buf_ring = br;

1
io_uring/kbuf.h
View File

@ -27,7 +27,6 @@ struct io_buffer_list {
__u16 bgid;
/* below is for ring provided buffers */
__u16 nr_entries;
__u16 head;
__u16 mask;