From 80f162ff061c9e280589bb1a1890c7fc21c932cd Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Mon, 30 May 2016 21:34:31 +0800 Subject: [PATCH] block: mark 1st parameter of bvec_iter_advance as const bvec_iter_advance() only writes the parameter of iterator, so the base address of bvec can be marked as const safely. Without the change, we can see compiling warning in the following patch for implementing iterate_bvec(): lib/iov_iter.c with bvec iterator. Reviewed-by: Christoph Hellwig Signed-off-by: Ming Lei Tested-by: Hannes Reinecke Signed-off-by: Jens Axboe --- include/linux/bvec.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/bvec.h b/include/linux/bvec.h index 096efd2c83e5..701b64a3b7c5 100644 --- a/include/linux/bvec.h +++ b/include/linux/bvec.h @@ -66,7 +66,8 @@ struct bvec_iter { .bv_offset = bvec_iter_offset((bvec), (iter)), \ }) -static inline void bvec_iter_advance(struct bio_vec *bv, struct bvec_iter *iter, +static inline void bvec_iter_advance(const struct bio_vec *bv, + struct bvec_iter *iter, unsigned bytes) { WARN_ONCE(bytes > iter->bi_size, -- 2.20.1