[PATCH v3 19/19] scsi: Made changes in Kconfig to select BLK_CGROUP_FC_APPID

kernel test robot lkp at intel.com
Tue Nov 3 16:19:37 EST 2020


Hi Muneendra,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on scsi/for-next]
[also build test ERROR on cgroup/for-next v5.10-rc2]
[cannot apply to mkp-scsi/for-next next-20201103]
[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]

url:    https://github.com/0day-ci/linux/commits/Muneendra/blkcg-Support-to-track-FC-storage-blk-io-traffic/20201103-221403
base:   https://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi.git for-next
config: arm64-randconfig-r023-20201103 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 1fcd5d5655e29f85e12b402e32974f207cfedf32)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install arm64 cross compiling tool for clang build
        # apt-get install binutils-aarch64-linux-gnu
        # https://github.com/0day-ci/linux/commit/78074b9ba99b7f8c0cd4b2d0c17589441443775c
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Muneendra/blkcg-Support-to-track-FC-storage-blk-io-traffic/20201103-221403
        git checkout 78074b9ba99b7f8c0cd4b2d0c17589441443775c
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>

All error/warnings (new ones prefixed by >>):

   WARNING: unmet direct dependencies detected for BLK_CGROUP_FC_APPID
   Depends on BLOCK && BLK_CGROUP
   Selected by
   - SCSI_FC_ATTRS && SCSI && NET
   In file included from arch/arm64/kernel/asm-offsets.c:16:
   In file included from include/linux/suspend.h:5:
   In file included from include/linux/swap.h:9:
   In file included from include/linux/memcontrol.h:22:
   In file included from include/linux/writeback.h:14:
>> include/linux/blk-cgroup.h:686:32: error: use of undeclared identifier 'io_cgrp_subsys'
   css = cgroup_get_e_css(cgrp, &io_cgrp_subsys);
   ^
   include/linux/blk-cgroup.h:691:10: error: implicit declaration of function 'css_to_blkcg'
   blkcg = css_to_blkcg(css);
   ^
   include/linux/blk-cgroup.h:691:10: note: did you mean
   include/linux/blk-cgroup.h:654:32: note: 'pd_to_blkg' declared here
   static inline struct blkcg_gq blkg_policy_data { return NULL; }
   ^
>> include/linux/blk-cgroup.h:691:8: warning: incompatible integer to pointer conversion assigning to 'struct blkcg from 'int'
   blkcg = css_to_blkcg(css);
   ^ ~~~~~~~~~~~~~~~~~
>> include/linux/blk-cgroup.h:700:17: error: no member named 'fc_app_id' in 'struct blkcg'
   strlcpy(blkcg->fc_app_id, buf, len);
   ~~~~~ ^
>> include/linux/blk-cgroup.h:719:18: error: no member named 'bi_blkg' in 'struct bio'
   if (bio && bio->bi_blkg &&
   ~~~ ^
   include/linux/blk-cgroup.h:720:16: error: no member named 'bi_blkg' in 'struct bio'
   strlen(bio->bi_blkg->blkcg->fc_app_id))
   ~~~ ^
   include/linux/blk-cgroup.h:721:15: error: no member named 'bi_blkg' in 'struct bio'
   return bio->bi_blkg->blkcg->fc_app_id;
   ~~~ ^
   1 warning and 6 errors generated.
   Makefile arch include kernel scripts source usr [scripts/Makefile.build:117: arch/arm64/kernel/asm-offsets.s] Error 1
   Target '__build' not remade because of errors.
   Makefile arch include kernel scripts source usr [Makefile:1200: prepare0] Error 2
   Target 'prepare' not remade because of errors.
   make: Makefile arch include kernel scripts source usr [Makefile:185: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.

vim +/io_cgrp_subsys +686 include/linux/blk-cgroup.h

a051661ca6d134c block/blk-cgroup.h         Tejun Heo         2012-06-26  651  
f95a04afa80c0f4 block/blk-cgroup.h         Tejun Heo         2012-04-16  652  static inline struct blkg_policy_data *blkg_to_pd(struct blkcg_gq *blkg,
3c798398e393e5f block/blk-cgroup.h         Tejun Heo         2012-04-16  653  						  struct blkcg_policy *pol) { return NULL; }
f95a04afa80c0f4 block/blk-cgroup.h         Tejun Heo         2012-04-16 @654  static inline struct blkcg_gq *pd_to_blkg(struct blkg_policy_data *pd) { return NULL; }
3c798398e393e5f block/blk-cgroup.h         Tejun Heo         2012-04-16  655  static inline char *blkg_path(struct blkcg_gq *blkg) { return NULL; }
3c798398e393e5f block/blk-cgroup.h         Tejun Heo         2012-04-16  656  static inline void blkg_get(struct blkcg_gq *blkg) { }
3c798398e393e5f block/blk-cgroup.h         Tejun Heo         2012-04-16  657  static inline void blkg_put(struct blkcg_gq *blkg) { }
afc24d49c1e5dbe block/blk-cgroup.h         Vivek Goyal       2010-04-26  658  
d3f77dfdc71835f include/linux/blk-cgroup.h Tejun Heo         2019-06-27  659  static inline bool blkcg_punt_bio_submit(struct bio *bio) { return false; }
e439bedf6b24264 include/linux/blk-cgroup.h Dennis Zhou       2018-12-05  660  static inline void blkcg_bio_issue_init(struct bio *bio) { }
db18a53e5ba8409 include/linux/blk-cgroup.h Christoph Hellwig 2020-06-27  661  static inline void blk_cgroup_bio_start(struct bio *bio) { }
ae1188963611119 include/linux/blk-cgroup.h Tejun Heo         2015-08-18  662  
a051661ca6d134c block/blk-cgroup.h         Tejun Heo         2012-06-26  663  #define blk_queue_for_each_rl(rl, q)	\
a051661ca6d134c block/blk-cgroup.h         Tejun Heo         2012-06-26  664  	for ((rl) = &(q)->root_rl; (rl); (rl) = NULL)
a051661ca6d134c block/blk-cgroup.h         Tejun Heo         2012-06-26  665  
efa7d1c733d1d2c include/linux/blk-cgroup.h Tejun Heo         2015-05-22  666  #endif	/* CONFIG_BLOCK */
36558c8a30e121f block/blk-cgroup.h         Tejun Heo         2012-04-16  667  #endif	/* CONFIG_BLK_CGROUP */
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  668  
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  669  #ifdef CONFIG_BLK_CGROUP_FC_APPID
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  670  /*
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  671   * Sets the fc_app_id field associted to blkcg
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  672   * @buf: application identifier
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  673   * @id: cgrp id
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  674   * @len: size of appid
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  675   */
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  676  static inline int blkcg_set_fc_appid(char *buf, u64 id, size_t len)
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  677  {
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  678  	struct cgroup *cgrp = NULL;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  679  	struct cgroup_subsys_state *css = NULL;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  680  	struct blkcg *blkcg = NULL;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  681  	int ret  = 0;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  682  
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  683  	cgrp = cgroup_get_from_kernfs_id(id);
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  684  	if (!cgrp)
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  685  		return -ENOENT;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03 @686  	css = cgroup_get_e_css(cgrp, &io_cgrp_subsys);
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  687  	if (!css) {
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  688  		ret = -ENOENT;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  689  		goto out_cgrp_put;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  690  	}
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03 @691  	blkcg = css_to_blkcg(css);
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  692  	if (!blkcg) {
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  693  		ret = -ENOENT;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  694  		goto out_put;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  695  	}
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  696  	if (len > APPID_LEN) {
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  697  		ret = -EINVAL;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  698  		goto out_put;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  699  	}
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03 @700  	strlcpy(blkcg->fc_app_id, buf, len);
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  701  out_put:
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  702  	css_put(css);
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  703  out_cgrp_put:
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  704  	cgroup_put(cgrp);
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  705  	return ret;
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  706  }
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  707  
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  708  /**
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  709   * blkcg_get_fc_appid - grab the app identifier associated with a bio
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  710   * @bio: target bio
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  711   *
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  712   * This returns the app identifier associated with a bio,
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  713   * %NULL if not associated.
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  714   * Callers are expected to either handle %NULL or know association has been
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  715   * done prior to calling this.
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  716   */
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  717  static inline char *blkcg_get_fc_appid(struct bio *bio)
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03  718  {
835f4599c6dcff2 include/linux/blk-cgroup.h Muneendra         2020-11-03 @719  	if (bio && bio->bi_blkg &&

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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