Messages in this thread | | | Date | Tue, 19 Jul 2022 23:34:26 +0800 | From | kernel test robot <> | Subject | [kbusch:dma-register 1/4] block/bio.c:1155:6: warning: no previous prototype for 'bio_iov_dma_tag_set' |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/kbusch/linux.git dma-register head: 9de6909fed20955193275bbf9c75ccc85553b7d8 commit: 8c38d1fa715ef4cd8c42a27cd252e66f99a440a3 [1/4] iouring/block/nvme: preregister dma mapped buffers config: um-x86_64_defconfig (https://download.01.org/0day-ci/archive/20220719/202207192339.BezSHVyy-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/kbusch/linux.git/commit/?id=8c38d1fa715ef4cd8c42a27cd252e66f99a440a3 git remote add kbusch https://git.kernel.org/pub/scm/linux/kernel/git/kbusch/linux.git git fetch --no-tags kbusch dma-register git checkout 8c38d1fa715ef4cd8c42a27cd252e66f99a440a3 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=um SUBARCH=x86_64 SHELL=/bin/bash
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> block/bio.c:1155:6: warning: no previous prototype for 'bio_iov_dma_tag_set' [-Wmissing-prototypes] 1155 | void bio_iov_dma_tag_set(struct bio *bio, struct iov_iter *iter) | ^~~~~~~~~~~~~~~~~~~ block/bio.c:1170:13: warning: 'bio_put_pages' defined but not used [-Wunused-function] 1170 | static void bio_put_pages(struct page **pages, size_t size, size_t off) | ^~~~~~~~~~~~~
vim +/bio_iov_dma_tag_set +1155 block/bio.c
1154 > 1155 void bio_iov_dma_tag_set(struct bio *bio, struct iov_iter *iter) 1156 { 1157 size_t size = iov_iter_count(iter); 1158 1159 bio->bi_vcnt = iter->nr_segs; 1160 bio->bi_dma_tag = iter->dma_tag; 1161 bio->bi_iter.bi_bvec_done = iter->iov_offset; 1162 bio->bi_iter.bi_size = size; 1163 bio->bi_opf |= REQ_NOMERGE; 1164 bio_set_flag(bio, BIO_NO_PAGE_REF); 1165 bio_set_flag(bio, BIO_DMA_TAGGED); 1166 1167 iov_iter_advance(iter, bio->bi_iter.bi_size); 1168 } 1169
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