Commit 55ea9683 authored by Jens Axboe's avatar Jens Axboe
Browse files

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



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: default avatarGabriel Krisman Bertazi <krisman@suse.de>
Signed-off-by: default avatarJens Axboe <axboe@kernel.dk>
parent 254f4963

io_uring/kbuf.c

+0 −1
Original line number Diff line number Diff line
@@ -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;

io_uring/kbuf.h

+0 −1
Original line number Diff line number Diff line
@@ -27,7 +27,6 @@ struct io_buffer_list { 
	__u16 bgid;



	/* below is for ring provided buffers */

	__u16 nr_entries;

	__u16 head;

	__u16 mask;