[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 19:55:32 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: mips-rm200_defconfig (attached as .config)
compiler: mipsel-linux-gcc (GCC) 9.3.0
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
        # 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=gcc-9.3.0 make.cross ARCH=mips 

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

All errors (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 include/linux/writeback.h:14,
   from include/linux/memcontrol.h:22,
   from include/linux/swap.h:9,
   from include/linux/suspend.h:5,
   from arch/mips/kernel/asm-offsets.c:17:
   include/linux/blk-cgroup.h: In function 'blkcg_set_fc_appid':
>> include/linux/blk-cgroup.h:686:8: error: implicit declaration of function 'cgroup_get_e_css'; did you mean
   686 | css = cgroup_get_e_css(cgrp, &io_cgrp_subsys);
   | ^~~~~~~~~~~~~~~~
   | cgroup_release
   include/linux/blk-cgroup.h:686:32: error: 'io_cgrp_subsys' undeclared (first use in this function)
   686 | css = cgroup_get_e_css(cgrp, &io_cgrp_subsys);
   | ^~~~~~~~~~~~~~
   include/linux/blk-cgroup.h:686:32: note: each undeclared identifier is reported only once for each function it appears in
   include/linux/blk-cgroup.h:691:10: error: implicit declaration of function 'css_to_blkcg'; did you mean
   691 | blkcg = css_to_blkcg(css);
   | ^~~~~~~~~~~~
   | pd_to_blkg
   include/linux/blk-cgroup.h:691:8: warning: assignment to 'struct blkcg from 'int' makes pointer from integer without a cast
   691 | blkcg = css_to_blkcg(css);
   | ^
   include/linux/blk-cgroup.h:700:15: error: 'struct blkcg' has no member named 'fc_app_id'
   700 | strlcpy(blkcg->fc_app_id, buf, len);
   | ^~
>> include/linux/blk-cgroup.h:704:2: error: implicit declaration of function 'cgroup_put'; did you mean
   704 | cgroup_put(cgrp);
   | ^~~~~~~~~~
   | cgroup_psi
   include/linux/blk-cgroup.h: In function 'blkcg_get_fc_appid':
   include/linux/blk-cgroup.h:719:16: error: 'struct bio' has no member named 'bi_blkg'
   719 | if (bio && bio->bi_blkg &&
   | ^~
   include/linux/blk-cgroup.h:720:14: error: 'struct bio' has no member named 'bi_blkg'
   720 | strlen(bio->bi_blkg->blkcg->fc_app_id))
   | ^~
   include/linux/blk-cgroup.h:721:13: error: 'struct bio' has no member named 'bi_blkg'
   721 | return bio->bi_blkg->blkcg->fc_app_id;
   | ^~
   arch/mips/kernel/asm-offsets.c: At top level:
   arch/mips/kernel/asm-offsets.c:26:6: warning: no previous prototype for 'output_ptreg_defines'
   26 | void output_ptreg_defines(void)
   | ^~~~~~~~~~~~~~~~~~~~
   arch/mips/kernel/asm-offsets.c:78:6: warning: no previous prototype for 'output_task_defines'
   78 | void output_task_defines(void)
   | ^~~~~~~~~~~~~~~~~~~
   arch/mips/kernel/asm-offsets.c:93:6: warning: no previous prototype for 'output_thread_info_defines'
   93 | void output_thread_info_defines(void)
   | ^~~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/kernel/asm-offsets.c:110:6: warning: no previous prototype for 'output_thread_defines'
   110 | void output_thread_defines(void)
   | ^~~~~~~~~~~~~~~~~~~~~
   arch/mips/kernel/asm-offsets.c:138:6: warning: no previous prototype for 'output_thread_fpu_defines'
   138 | void output_thread_fpu_defines(void)
   | ^~~~~~~~~~~~~~~~~~~~~~~~~
   arch/mips/kernel/asm-offsets.c:181:6: warning: no previous prototype for 'output_mm_defines'
   181 | void output_mm_defines(void)
   | ^~~~~~~~~~~~~~~~~
   arch/mips/kernel/asm-offsets.c:220:6: warning: no previous prototype for 'output_sc_defines'
   220 | void output_sc_defines(void)
   | ^~~~~~~~~~~~~~~~~
   arch/mips/kernel/asm-offsets.c:255:6: warning: no previous prototype for 'output_signal_defined'
   255 | void output_signal_defined(void)
   | ^~~~~~~~~~~~~~~~~~~~~
   arch/mips/kernel/asm-offsets.c:348:6: warning: no previous prototype for 'output_kvm_defines'
   348 | void output_kvm_defines(void)
   | ^~~~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors
   Makefile arch include kernel scripts source usr [scripts/Makefile.build:117: arch/mips/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 +/cgroup_get_e_css +686 include/linux/blk-cgroup.h

835f4599c6dcff2 Muneendra 2020-11-03  668  
835f4599c6dcff2 Muneendra 2020-11-03  669  #ifdef CONFIG_BLK_CGROUP_FC_APPID
835f4599c6dcff2 Muneendra 2020-11-03  670  /*
835f4599c6dcff2 Muneendra 2020-11-03  671   * Sets the fc_app_id field associted to blkcg
835f4599c6dcff2 Muneendra 2020-11-03  672   * @buf: application identifier
835f4599c6dcff2 Muneendra 2020-11-03  673   * @id: cgrp id
835f4599c6dcff2 Muneendra 2020-11-03  674   * @len: size of appid
835f4599c6dcff2 Muneendra 2020-11-03  675   */
835f4599c6dcff2 Muneendra 2020-11-03  676  static inline int blkcg_set_fc_appid(char *buf, u64 id, size_t len)
835f4599c6dcff2 Muneendra 2020-11-03  677  {
835f4599c6dcff2 Muneendra 2020-11-03  678  	struct cgroup *cgrp = NULL;
835f4599c6dcff2 Muneendra 2020-11-03  679  	struct cgroup_subsys_state *css = NULL;
835f4599c6dcff2 Muneendra 2020-11-03  680  	struct blkcg *blkcg = NULL;
835f4599c6dcff2 Muneendra 2020-11-03  681  	int ret  = 0;
835f4599c6dcff2 Muneendra 2020-11-03  682  
835f4599c6dcff2 Muneendra 2020-11-03  683  	cgrp = cgroup_get_from_kernfs_id(id);
835f4599c6dcff2 Muneendra 2020-11-03  684  	if (!cgrp)
835f4599c6dcff2 Muneendra 2020-11-03  685  		return -ENOENT;
835f4599c6dcff2 Muneendra 2020-11-03 @686  	css = cgroup_get_e_css(cgrp, &io_cgrp_subsys);
835f4599c6dcff2 Muneendra 2020-11-03  687  	if (!css) {
835f4599c6dcff2 Muneendra 2020-11-03  688  		ret = -ENOENT;
835f4599c6dcff2 Muneendra 2020-11-03  689  		goto out_cgrp_put;
835f4599c6dcff2 Muneendra 2020-11-03  690  	}
835f4599c6dcff2 Muneendra 2020-11-03  691  	blkcg = css_to_blkcg(css);
835f4599c6dcff2 Muneendra 2020-11-03  692  	if (!blkcg) {
835f4599c6dcff2 Muneendra 2020-11-03  693  		ret = -ENOENT;
835f4599c6dcff2 Muneendra 2020-11-03  694  		goto out_put;
835f4599c6dcff2 Muneendra 2020-11-03  695  	}
835f4599c6dcff2 Muneendra 2020-11-03  696  	if (len > APPID_LEN) {
835f4599c6dcff2 Muneendra 2020-11-03  697  		ret = -EINVAL;
835f4599c6dcff2 Muneendra 2020-11-03  698  		goto out_put;
835f4599c6dcff2 Muneendra 2020-11-03  699  	}
835f4599c6dcff2 Muneendra 2020-11-03  700  	strlcpy(blkcg->fc_app_id, buf, len);
835f4599c6dcff2 Muneendra 2020-11-03  701  out_put:
835f4599c6dcff2 Muneendra 2020-11-03  702  	css_put(css);
835f4599c6dcff2 Muneendra 2020-11-03  703  out_cgrp_put:
835f4599c6dcff2 Muneendra 2020-11-03 @704  	cgroup_put(cgrp);
835f4599c6dcff2 Muneendra 2020-11-03  705  	return ret;
835f4599c6dcff2 Muneendra 2020-11-03  706  }
835f4599c6dcff2 Muneendra 2020-11-03  707  

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