linux-kernel - Re: [PATCH v3 3/4] nvme: move ns id info to struct nvme_ns

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Date:   Thu, 7 Dec 2023 01:38:02 +0800
From:   kernel test robot <lkp@...el.com>
To:     Daniel Wagner <dwagner@...e.de>, linux-nvme@...ts.infradead.org
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-kernel@...r.kernel.org, Keith Busch <kbusch@...nel.org>,
        Christoph Hellwig <hch@....de>,
        Sagi Grimberg <sagi@...mberg.me>,
        Hannes Reinecke <hare@...e.de>, Daniel Wagner <dwagner@...e.de>
Subject: Re: [PATCH v3 3/4] nvme: move ns id info to struct nvme_ns_head

Hi Daniel,

kernel test robot noticed the following build errors:

[auto build test ERROR on v6.7-rc4]
[also build test ERROR on linus/master next-20231206]
[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/Daniel-Wagner/nvme-lookup-ctrl-from-request-instead-from-namespace/20231206-161455
base:   v6.7-rc4
patch link:    https://lore.kernel.org/r/20231206081244.32733-4-dwagner%40suse.de
patch subject: [PATCH v3 3/4] nvme: move ns id info to struct nvme_ns_head
config: i386-buildonly-randconfig-003-20231206 (https://download.01.org/0day-ci/archive/20231207/202312070119.ThsAOHuk-lkp@intel.com/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231207/202312070119.ThsAOHuk-lkp@intel.com/reproduce)

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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202312070119.ThsAOHuk-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/nvme/host/core.c:2034:31: error: incompatible pointer types passing 'struct nvme_ns_head *' to parameter of type 'struct nvme_ns *' [-Werror,-Wincompatible-pointer-types]
                   nvme_mpath_revalidate_paths(ns->head);
                                               ^~~~~~~~
   drivers/nvme/host/nvme.h:945:64: note: passing argument to parameter 'ns' here
   static inline void nvme_mpath_revalidate_paths(struct nvme_ns *ns)
                                                                  ^
   drivers/nvme/host/core.c:2109:31: error: incompatible pointer types passing 'struct nvme_ns_head *' to parameter of type 'struct nvme_ns *' [-Werror,-Wincompatible-pointer-types]
                   nvme_mpath_revalidate_paths(ns->head);
                                               ^~~~~~~~
   drivers/nvme/host/nvme.h:945:64: note: passing argument to parameter 'ns' here
   static inline void nvme_mpath_revalidate_paths(struct nvme_ns *ns)
                                                                  ^
   2 errors generated.


vim +2034 drivers/nvme/host/core.c

  2022	
  2023	static int nvme_update_ns_info_generic(struct nvme_ns *ns,
  2024			struct nvme_ns_info *info)
  2025	{
  2026		blk_mq_freeze_queue(ns->disk->queue);
  2027		nvme_set_queue_limits(ns->ctrl, ns->queue);
  2028		set_disk_ro(ns->disk, nvme_ns_is_readonly(ns, info));
  2029		blk_mq_unfreeze_queue(ns->disk->queue);
  2030	
  2031		if (nvme_ns_head_multipath(ns->head)) {
  2032			blk_mq_freeze_queue(ns->head->disk->queue);
  2033			set_disk_ro(ns->head->disk, nvme_ns_is_readonly(ns, info));
> 2034			nvme_mpath_revalidate_paths(ns->head);
  2035			blk_stack_limits(&ns->head->disk->queue->limits,
  2036					 &ns->queue->limits, 0);
  2037			ns->head->disk->flags |= GENHD_FL_HIDDEN;
  2038			blk_mq_unfreeze_queue(ns->head->disk->queue);
  2039		}
  2040	
  2041		/* Hide the block-interface for these devices */
  2042		ns->disk->flags |= GENHD_FL_HIDDEN;
  2043		set_bit(NVME_NS_READY, &ns->flags);
  2044	
  2045		return 0;
  2046	}
  2047	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki