* [agd5f:drm-next 54/79] drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1140:16: warning: no previous prototype for 'amdgpu_ras_debugfs_create_ctrl_node'
@ 2021-02-15 23:49 kernel test robot
0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2021-02-15 23:49 UTC (permalink / raw)
To: kbuild-all
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tree: https://gitlab.freedesktop.org/agd5f/linux.git drm-next
head: 5c86a4a21df34ba7daf8fe361c26c7dd31333187
commit: eb14235668777baddfc77ce4f72ecfa2ea85ca55 [54/79] drm/amdgpu: do not keep debugfs dentry
config: alpha-randconfig-r034-20210215 (attached as .config)
compiler: alpha-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
git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git
git fetch --no-tags agd5f drm-next
git checkout eb14235668777baddfc77ce4f72ecfa2ea85ca55
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
>> drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1140:16: warning: no previous prototype for 'amdgpu_ras_debugfs_create_ctrl_node' [-Wmissing-prototypes]
1140 | struct dentry *amdgpu_ras_debugfs_create_ctrl_node(struct amdgpu_device *adev)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
vim +/amdgpu_ras_debugfs_create_ctrl_node +1140 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
1120
1121 /**
1122 * DOC: AMDGPU RAS Reboot Behavior for Unrecoverable Errors
1123 *
1124 * Normally when there is an uncorrectable error, the driver will reset
1125 * the GPU to recover. However, in the event of an unrecoverable error,
1126 * the driver provides an interface to reboot the system automatically
1127 * in that event.
1128 *
1129 * The following file in debugfs provides that interface:
1130 * /sys/kernel/debug/dri/[0/1/2...]/ras/auto_reboot
1131 *
1132 * Usage:
1133 *
1134 * .. code-block:: bash
1135 *
1136 * echo true > .../ras/auto_reboot
1137 *
1138 */
1139 /* debugfs begin */
> 1140 struct dentry *amdgpu_ras_debugfs_create_ctrl_node(struct amdgpu_device *adev)
1141 {
1142 struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
1143 struct dentry *dir;
1144 struct drm_minor *minor = adev_to_drm(adev)->primary;
1145
1146 dir = debugfs_create_dir(RAS_FS_NAME, minor->debugfs_root);
1147 debugfs_create_file("ras_ctrl", S_IWUGO | S_IRUGO, dir, adev,
1148 &amdgpu_ras_debugfs_ctrl_ops);
1149 debugfs_create_file("ras_eeprom_reset", S_IWUGO | S_IRUGO, dir, adev,
1150 &amdgpu_ras_debugfs_eeprom_ops);
1151
1152 /*
1153 * After one uncorrectable error happens, usually GPU recovery will
1154 * be scheduled. But due to the known problem in GPU recovery failing
1155 * to bring GPU back, below interface provides one direct way to
1156 * user to reboot system automatically in such case within
1157 * ERREVENT_ATHUB_INTERRUPT generated. Normal GPU recovery routine
1158 * will never be called.
1159 */
1160 debugfs_create_bool("auto_reboot", S_IWUGO | S_IRUGO, dir, &con->reboot);
1161
1162 /*
1163 * User could set this not to clean up hardware's error count register
1164 * of RAS IPs during ras recovery.
1165 */
1166 debugfs_create_bool("disable_ras_err_cnt_harvest", 0644, dir,
1167 &con->disable_ras_err_cnt_harvest);
1168 return dir;
1169 }
1170
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2021-02-15 23:49 [agd5f:drm-next 54/79] drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:1140:16: warning: no previous prototype for 'amdgpu_ras_debugfs_create_ctrl_node' kernel test robot
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