* Re: [PATCH vhost 4/6] virtio_net: big mode support premapped
[not found] <20240411025127.51945-5-xuanzhuo@linux.alibaba.com>
@ 2024-04-14 9:48 ` Dan Carpenter
0 siblings, 0 replies; 2+ messages in thread
From: Dan Carpenter @ 2024-04-14 9:48 UTC (permalink / raw)
To: oe-kbuild, Xuan Zhuo, virtualization
Cc: lkp, oe-kbuild-all, Michael S. Tsirkin, Jason Wang, Xuan Zhuo,
Eric Dumazet, Jakub Kicinski, Paolo Abeni, netdev
Hi Xuan,
kernel test robot noticed the following build warnings:
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Xuan-Zhuo/virtio_ring-introduce-dma-map-api-for-page/20240411-105318
base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
patch link: https://lore.kernel.org/r/20240411025127.51945-5-xuanzhuo%40linux.alibaba.com
patch subject: [PATCH vhost 4/6] virtio_net: big mode support premapped
config: i386-randconfig-141-20240414 (https://download.01.org/0day-ci/archive/20240414/202404141343.iPhKo7zd-lkp@intel.com/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
| Closes: https://lore.kernel.org/r/202404141343.iPhKo7zd-lkp@intel.com/
New smatch warnings:
drivers/net/virtio_net.c:485 give_pages() warn: impossible condition '((page->dma_addr) == (~0)) => (0-u32max == u64max)'
vim +485 drivers/net/virtio_net.c
e9d7417b97f420 Jason Wang 2012-12-07 481 static void give_pages(struct receive_queue *rq, struct page *page)
0a888fd1f6320d Mark McLoughlin 2008-11-16 482 {
9ab86bbcf8be75 Shirley Ma 2010-01-29 483 struct page *end;
0a888fd1f6320d Mark McLoughlin 2008-11-16 484
59e4bcf761eeba Xuan Zhuo 2024-04-11 @485 if (page_dma_addr(page) == DMA_MAPPING_ERROR) {
(struct page)->dma_addr is unsigned long but DMA_MAPPING_ERROR is
dma_addr_t.
59e4bcf761eeba Xuan Zhuo 2024-04-11 486 if (page_chain_map(rq, page)) {
59e4bcf761eeba Xuan Zhuo 2024-04-11 487 __free_pages(page, 0);
59e4bcf761eeba Xuan Zhuo 2024-04-11 488 return;
59e4bcf761eeba Xuan Zhuo 2024-04-11 489 }
59e4bcf761eeba Xuan Zhuo 2024-04-11 490 }
59e4bcf761eeba Xuan Zhuo 2024-04-11 491
e9d7417b97f420 Jason Wang 2012-12-07 492 /* Find end of list, sew whole thing into vi->rq.pages. */
590f79cf558cb4 Xuan Zhuo 2024-04-11 493 for (end = page; page_chain_next(end); end = page_chain_next(end));
590f79cf558cb4 Xuan Zhuo 2024-04-11 494
590f79cf558cb4 Xuan Zhuo 2024-04-11 495 page_chain_add(end, rq->pages);
e9d7417b97f420 Jason Wang 2012-12-07 496 rq->pages = page;
0a888fd1f6320d Mark McLoughlin 2008-11-16 497 }
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH vhost 4/6] virtio_net: big mode support premapped
@ 2024-04-14 5:58 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2024-04-14 5:58 UTC (permalink / raw)
To: oe-kbuild; +Cc: lkp, Dan Carpenter
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
In-Reply-To: <20240411025127.51945-5-xuanzhuo@linux.alibaba.com>
References: <20240411025127.51945-5-xuanzhuo@linux.alibaba.com>
TO: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
TO: virtualization@lists.linux.dev
CC: "Michael S. Tsirkin" <mst@redhat.com>
CC: Jason Wang <jasowang@redhat.com>
CC: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
CC: Eric Dumazet <edumazet@google.com>
CC: Jakub Kicinski <kuba@kernel.org>
CC: Paolo Abeni <pabeni@redhat.com>
CC: netdev@vger.kernel.org
Hi Xuan,
kernel test robot noticed the following build warnings:
[auto build test WARNING on mst-vhost/linux-next]
[also build test WARNING on linus/master v6.9-rc3 next-20240412]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Xuan-Zhuo/virtio_ring-introduce-dma-map-api-for-page/20240411-105318
base: https://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost.git linux-next
patch link: https://lore.kernel.org/r/20240411025127.51945-5-xuanzhuo%40linux.alibaba.com
patch subject: [PATCH vhost 4/6] virtio_net: big mode support premapped
:::::: branch date: 3 days ago
:::::: commit date: 3 days ago
config: i386-randconfig-141-20240414 (https://download.01.org/0day-ci/archive/20240414/202404141343.iPhKo7zd-lkp@intel.com/config)
compiler: gcc-13 (Ubuntu 13.2.0-4ubuntu3) 13.2.0
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202404141343.iPhKo7zd-lkp@intel.com/
New smatch warnings:
drivers/net/virtio_net.c:485 give_pages() warn: impossible condition '((page->dma_addr) == (~0)) => (0-u32max == u64max)'
Old smatch warnings:
drivers/net/virtio_net.c:1491 build_skb_from_xdp_buff() error: uninitialized symbol 'nr_frags'.
drivers/net/virtio_net.c:1573 virtnet_build_xdp_buff_mrg() error: uninitialized symbol 'shinfo'.
drivers/net/virtio_net.c:3833 virtnet_update_settings() error: uninitialized symbol 'virtio_cread_v'.
drivers/net/virtio_net.c:4261 virtnet_config_changed_work() error: uninitialized symbol 'virtio_cread_v'.
drivers/net/virtio_net.c:4265 virtnet_config_changed_work() error: uninitialized symbol 'v'.
vim +485 drivers/net/virtio_net.c
59e4bcf761eeba Xuan Zhuo 2024-04-11 477
9ab86bbcf8be75 Shirley Ma 2010-01-29 478 /*
590f79cf558cb4 Xuan Zhuo 2024-04-11 479 * put the whole most recent used list in the beginning for reuse
9ab86bbcf8be75 Shirley Ma 2010-01-29 480 */
e9d7417b97f420 Jason Wang 2012-12-07 481 static void give_pages(struct receive_queue *rq, struct page *page)
0a888fd1f6320d Mark McLoughlin 2008-11-16 482 {
9ab86bbcf8be75 Shirley Ma 2010-01-29 483 struct page *end;
0a888fd1f6320d Mark McLoughlin 2008-11-16 484
59e4bcf761eeba Xuan Zhuo 2024-04-11 @485 if (page_dma_addr(page) == DMA_MAPPING_ERROR) {
59e4bcf761eeba Xuan Zhuo 2024-04-11 486 if (page_chain_map(rq, page)) {
59e4bcf761eeba Xuan Zhuo 2024-04-11 487 __free_pages(page, 0);
59e4bcf761eeba Xuan Zhuo 2024-04-11 488 return;
59e4bcf761eeba Xuan Zhuo 2024-04-11 489 }
59e4bcf761eeba Xuan Zhuo 2024-04-11 490 }
59e4bcf761eeba Xuan Zhuo 2024-04-11 491
e9d7417b97f420 Jason Wang 2012-12-07 492 /* Find end of list, sew whole thing into vi->rq.pages. */
590f79cf558cb4 Xuan Zhuo 2024-04-11 493 for (end = page; page_chain_next(end); end = page_chain_next(end));
590f79cf558cb4 Xuan Zhuo 2024-04-11 494
590f79cf558cb4 Xuan Zhuo 2024-04-11 495 page_chain_add(end, rq->pages);
e9d7417b97f420 Jason Wang 2012-12-07 496 rq->pages = page;
0a888fd1f6320d Mark McLoughlin 2008-11-16 497 }
0a888fd1f6320d Mark McLoughlin 2008-11-16 498
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
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[not found] <20240411025127.51945-5-xuanzhuo@linux.alibaba.com>
2024-04-14 9:48 ` [PATCH vhost 4/6] virtio_net: big mode support premapped Dan Carpenter
2024-04-14 5:58 kernel test robot
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