[PATCH] sched: delete some api is not used

[PATCH] sched: delete some api is not used

[lingfuyi]

From: lingfuyi <lingfuyi@kylinos.cn>

fix compile errors like this:
net/sched/cls_api.c:141:13: error: ‘tcf_exts_miss_cookie_base_destroy’
defined but not used [-Werror=unused-function]

Reported-by: k2ci <kernel-bot@kylinos.cn>
Signed-off-by: lingfuyi <lingfuyi@kylinos.cn>
---
 net/sched/cls_api.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 3569e2c3660c..eca9e60440df 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -138,9 +138,6 @@ tcf_exts_miss_cookie_base_alloc(struct tcf_exts *exts, struct tcf_proto *tp,
 	return 0;
 }
 
-static void tcf_exts_miss_cookie_base_destroy(struct tcf_exts *exts)
-{
-}
 #endif /* IS_ENABLED(CONFIG_NET_TC_SKB_EXT) */
 
 static u64 tcf_exts_miss_cookie_get(u32 miss_cookie_base, int act_index)
-- 
2.25.1

Re: [PATCH] sched: delete some api is not used

[kernel test robot]

Hi lingfuyi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on horms-ipvs/master]
[also build test ERROR on linus/master next-20230228]
[cannot apply to v6.2]
[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/lingfuyi/sched-delete-some-api-is-not-used/20230228-124804
base:   https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git master
patch link:    https://lore.kernel.org/r/20230228031241.1675263-1-lingfuyi%40126.com
patch subject: [PATCH] sched: delete some api is not used
config: i386-randconfig-a013-20230227 (https://download.01.org/0day-ci/archive/20230228/202302281526.331aCypp-lkp@intel.com/config)
compiler: gcc-11 (Debian 11.3.0-8) 11.3.0
reproduce (this is a W=1 build):
        # https://github.com/intel-lab-lkp/linux/commit/6d9fd0340845396f9866b8a8c53ad65066de39ac
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review lingfuyi/sched-delete-some-api-is-not-used/20230228-124804
        git checkout 6d9fd0340845396f9866b8a8c53ad65066de39ac
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        make W=1 O=build_dir ARCH=i386 olddefconfig
        make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302281526.331aCypp-lkp@intel.com/

All errors (new ones prefixed by >>):

   net/sched/cls_api.c: In function 'tcf_exts_destroy':
>> net/sched/cls_api.c:3242:9: error: implicit declaration of function 'tcf_exts_miss_cookie_base_destroy'; did you mean 'tcf_exts_miss_cookie_base_alloc'? [-Werror=implicit-function-declaration]
    3242 |         tcf_exts_miss_cookie_base_destroy(exts);
         |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
         |         tcf_exts_miss_cookie_base_alloc
   cc1: some warnings being treated as errors


vim +3242 net/sched/cls_api.c

80cd22c35c9001 Paul Blakey       2023-02-18  3238  
18d0264f630e20 WANG Cong         2014-09-25  3239  void tcf_exts_destroy(struct tcf_exts *exts)
^1da177e4c3f41 Linus Torvalds    2005-04-16  3240  {
^1da177e4c3f41 Linus Torvalds    2005-04-16  3241  #ifdef CONFIG_NET_CLS_ACT
80cd22c35c9001 Paul Blakey       2023-02-18 @3242  	tcf_exts_miss_cookie_base_destroy(exts);
80cd22c35c9001 Paul Blakey       2023-02-18  3243  
3d66b89c30f922 Eric Dumazet      2019-09-18  3244  	if (exts->actions) {
90b73b77d08ec3 Vlad Buslov       2018-07-05  3245  		tcf_action_destroy(exts->actions, TCA_ACT_UNBIND);
22dc13c837c332 WANG Cong         2016-08-13  3246  		kfree(exts->actions);
3d66b89c30f922 Eric Dumazet      2019-09-18  3247  	}
22dc13c837c332 WANG Cong         2016-08-13  3248  	exts->nr_actions = 0;
^1da177e4c3f41 Linus Torvalds    2005-04-16  3249  #endif
^1da177e4c3f41 Linus Torvalds    2005-04-16  3250  }
aa767bfea48289 Stephen Hemminger 2008-01-21  3251  EXPORT_SYMBOL(tcf_exts_destroy);
^1da177e4c3f41 Linus Torvalds    2005-04-16  3252  

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

Re: [PATCH] sched: delete some api is not used

[kernel test robot]

Hi lingfuyi,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on horms-ipvs/master]
[also build test ERROR on linus/master next-20230228]
[cannot apply to v6.2]
[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/lingfuyi/sched-delete-some-api-is-not-used/20230228-124804
base:   https://git.kernel.org/pub/scm/linux/kernel/git/horms/ipvs.git master
patch link:    https://lore.kernel.org/r/20230228031241.1675263-1-lingfuyi%40126.com
patch subject: [PATCH] sched: delete some api is not used
config: x86_64-randconfig-a001-20230227 (https://download.01.org/0day-ci/archive/20230228/202302281531.3gOSrvTO-lkp@intel.com/config)
compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1)
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/intel-lab-lkp/linux/commit/6d9fd0340845396f9866b8a8c53ad65066de39ac
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review lingfuyi/sched-delete-some-api-is-not-used/20230228-124804
        git checkout 6d9fd0340845396f9866b8a8c53ad65066de39ac
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash net/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>
| Link: https://lore.kernel.org/oe-kbuild-all/202302281531.3gOSrvTO-lkp@intel.com/

All errors (new ones prefixed by >>):

>> net/sched/cls_api.c:3242:2: error: implicit declaration of function 'tcf_exts_miss_cookie_base_destroy' is invalid in C99 [-Werror,-Wimplicit-function-declaration]
           tcf_exts_miss_cookie_base_destroy(exts);
           ^
   net/sched/cls_api.c:3242:2: note: did you mean 'tcf_exts_miss_cookie_base_alloc'?
   net/sched/cls_api.c:135:1: note: 'tcf_exts_miss_cookie_base_alloc' declared here
   tcf_exts_miss_cookie_base_alloc(struct tcf_exts *exts, struct tcf_proto *tp,
   ^
   1 error generated.


vim +/tcf_exts_miss_cookie_base_destroy +3242 net/sched/cls_api.c

80cd22c35c9001 Paul Blakey       2023-02-18  3238  
18d0264f630e20 WANG Cong         2014-09-25  3239  void tcf_exts_destroy(struct tcf_exts *exts)
^1da177e4c3f41 Linus Torvalds    2005-04-16  3240  {
^1da177e4c3f41 Linus Torvalds    2005-04-16  3241  #ifdef CONFIG_NET_CLS_ACT
80cd22c35c9001 Paul Blakey       2023-02-18 @3242  	tcf_exts_miss_cookie_base_destroy(exts);
80cd22c35c9001 Paul Blakey       2023-02-18  3243  
3d66b89c30f922 Eric Dumazet      2019-09-18  3244  	if (exts->actions) {
90b73b77d08ec3 Vlad Buslov       2018-07-05  3245  		tcf_action_destroy(exts->actions, TCA_ACT_UNBIND);
22dc13c837c332 WANG Cong         2016-08-13  3246  		kfree(exts->actions);
3d66b89c30f922 Eric Dumazet      2019-09-18  3247  	}
22dc13c837c332 WANG Cong         2016-08-13  3248  	exts->nr_actions = 0;
^1da177e4c3f41 Linus Torvalds    2005-04-16  3249  #endif
^1da177e4c3f41 Linus Torvalds    2005-04-16  3250  }
aa767bfea48289 Stephen Hemminger 2008-01-21  3251  EXPORT_SYMBOL(tcf_exts_destroy);
^1da177e4c3f41 Linus Torvalds    2005-04-16  3252  

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

Re: [PATCH] sched: delete some api is not used

[Paolo Abeni]

On Tue, 2023-02-28 at 11:12 +0800, lingfuyi wrote:
> From: lingfuyi <lingfuyi@kylinos.cn>
> 
> fix compile errors like this:
> net/sched/cls_api.c:141:13: error: ‘tcf_exts_miss_cookie_base_destroy’
> defined but not used [-Werror=unused-function]
> 
> Reported-by: k2ci <kernel-bot@kylinos.cn>
> Signed-off-by: lingfuyi <lingfuyi@kylinos.cn>

This has been already addressed by:

commit 37e1f3acc339b28493eb3dad571c3f01b6af86f6
Author: Nathan Chancellor <nathan@kernel.org>
Date:   Fri Feb 24 11:18:49 2023 -0700

    net/sched: cls_api: Move call to tcf_exts_miss_cookie_base_destroy()

Thanks,

Paolo