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Date: Tue, 7 Nov 2023 01:52:39 +0800
From: kernel test robot <lkp@...el.com>
To: Calvince Otieno <calvncce@...il.com>, gustavo@...eddedor.com,
outreachy@...ts.linux.dev
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Florian Fainelli <florian.fainelli@...adcom.com>,
Broadcom internal kernel review list
<bcm-kernel-feedback-list@...adcom.com>,
linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: vc04_services: remove empty functions
Hi Calvince,
kernel test robot noticed the following build warnings:
[auto build test WARNING on staging/staging-testing]
url: https://github.com/intel-lab-lkp/linux/commits/Calvince-Otieno/staging-vc04_services-remove-empty-functions/20231019-174823
base: staging/staging-testing
patch link: https://lore.kernel.org/r/ZTD677iqMkRPxT27%40lab-ubuntu
patch subject: [PATCH] staging: vc04_services: remove empty functions
config: i386-allmodconfig (https://download.01.org/0day-ci/archive/20231107/202311070101.3sRlVl2Z-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/20231107/202311070101.3sRlVl2Z-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/202311070101.3sRlVl2Z-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c:181:6: warning: no previous prototype for function 'vchiq_debugfs_add_instance' [-Wmissing-prototypes]
void vchiq_debugfs_add_instance(struct vchiq_instance *instance)
^
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c:181:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void vchiq_debugfs_add_instance(struct vchiq_instance *instance)
^
static
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c:198:6: warning: no previous prototype for function 'vchiq_debugfs_remove_instance' [-Wmissing-prototypes]
void vchiq_debugfs_remove_instance(struct vchiq_instance *instance)
^
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c:198:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void vchiq_debugfs_remove_instance(struct vchiq_instance *instance)
^
static
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c:206:6: warning: no previous prototype for function 'vchiq_debugfs_init' [-Wmissing-prototypes]
void vchiq_debugfs_init(void)
^
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c:206:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void vchiq_debugfs_init(void)
^
static
>> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c:224:6: warning: no previous prototype for function 'vchiq_debugfs_deinit' [-Wmissing-prototypes]
void vchiq_debugfs_deinit(void)
^
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c:224:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void vchiq_debugfs_deinit(void)
^
static
4 warnings generated.
vim +/vchiq_debugfs_add_instance +181 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_debugfs.c
71bad7f086419d popcornmix 2013-07-02 179
71bad7f086419d popcornmix 2013-07-02 180 /* add an instance (process) to the debugfs entries */
4ddf9a2555caf2 Jamal Shareef 2019-11-05 @181 void vchiq_debugfs_add_instance(struct vchiq_instance *instance)
71bad7f086419d popcornmix 2013-07-02 182 {
71bad7f086419d popcornmix 2013-07-02 183 char pidstr[16];
0723103f8ba15a Greg Kroah-Hartman 2018-06-01 184 struct dentry *top;
71bad7f086419d popcornmix 2013-07-02 185
71bad7f086419d popcornmix 2013-07-02 186 snprintf(pidstr, sizeof(pidstr), "%d",
71bad7f086419d popcornmix 2013-07-02 187 vchiq_instance_get_pid(instance));
71bad7f086419d popcornmix 2013-07-02 188
24e8d3fc42f259 Greg Kroah-Hartman 2018-06-01 189 top = debugfs_create_dir(pidstr, vchiq_dbg_clients);
71bad7f086419d popcornmix 2013-07-02 190
0723103f8ba15a Greg Kroah-Hartman 2018-06-01 191 debugfs_create_file("use_count", 0444, top, instance,
71bad7f086419d popcornmix 2013-07-02 192 &debugfs_usecount_fops);
0723103f8ba15a Greg Kroah-Hartman 2018-06-01 193 debugfs_create_file("trace", 0644, top, instance, &debugfs_trace_fops);
71bad7f086419d popcornmix 2013-07-02 194
71bad7f086419d popcornmix 2013-07-02 195 vchiq_instance_get_debugfs_node(instance)->dentry = top;
71bad7f086419d popcornmix 2013-07-02 196 }
71bad7f086419d popcornmix 2013-07-02 197
4ddf9a2555caf2 Jamal Shareef 2019-11-05 @198 void vchiq_debugfs_remove_instance(struct vchiq_instance *instance)
71bad7f086419d popcornmix 2013-07-02 199 {
aa987e55132f78 Dominic Braun 2018-12-14 200 struct vchiq_debugfs_node *node =
aa987e55132f78 Dominic Braun 2018-12-14 201 vchiq_instance_get_debugfs_node(instance);
6e475350a40685 Yamanappagouda Patil 2017-02-21 202
71bad7f086419d popcornmix 2013-07-02 203 debugfs_remove_recursive(node->dentry);
71bad7f086419d popcornmix 2013-07-02 204 }
71bad7f086419d popcornmix 2013-07-02 205
0723103f8ba15a Greg Kroah-Hartman 2018-06-01 @206 void vchiq_debugfs_init(void)
71bad7f086419d popcornmix 2013-07-02 207 {
3b93c0f4b6accb Greg Kroah-Hartman 2018-06-01 208 struct dentry *dir;
3b93c0f4b6accb Greg Kroah-Hartman 2018-06-01 209 int i;
3b93c0f4b6accb Greg Kroah-Hartman 2018-06-01 210
2739deaece4bc2 Greg Kroah-Hartman 2018-06-01 211 vchiq_dbg_dir = debugfs_create_dir("vchiq", NULL);
24e8d3fc42f259 Greg Kroah-Hartman 2018-06-01 212 vchiq_dbg_clients = debugfs_create_dir("clients", vchiq_dbg_dir);
71bad7f086419d popcornmix 2013-07-02 213
3b93c0f4b6accb Greg Kroah-Hartman 2018-06-01 214 /* create an entry under <debugfs>/vchiq/log for each log category */
3b93c0f4b6accb Greg Kroah-Hartman 2018-06-01 215 dir = debugfs_create_dir("log", vchiq_dbg_dir);
3b93c0f4b6accb Greg Kroah-Hartman 2018-06-01 216
e1a17ce82f1808 Stefan Wahren 2022-01-23 217 for (i = 0; i < ARRAY_SIZE(vchiq_debugfs_log_entries); i++)
3b93c0f4b6accb Greg Kroah-Hartman 2018-06-01 218 debugfs_create_file(vchiq_debugfs_log_entries[i].name, 0644,
3b93c0f4b6accb Greg Kroah-Hartman 2018-06-01 219 dir, vchiq_debugfs_log_entries[i].plevel,
3b93c0f4b6accb Greg Kroah-Hartman 2018-06-01 220 &debugfs_log_fops);
71bad7f086419d popcornmix 2013-07-02 221 }
71bad7f086419d popcornmix 2013-07-02 222
71bad7f086419d popcornmix 2013-07-02 223 /* remove all the debugfs entries */
71bad7f086419d popcornmix 2013-07-02 @224 void vchiq_debugfs_deinit(void)
71bad7f086419d popcornmix 2013-07-02 225 {
2739deaece4bc2 Greg Kroah-Hartman 2018-06-01 226 debugfs_remove_recursive(vchiq_dbg_dir);
71bad7f086419d popcornmix 2013-07-02 227 }
71bad7f086419d popcornmix 2013-07-02 228
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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