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SubjectRe: [PATCH V3 XRT Alveo 18/18] fpga: xrt: Kconfig and Makefile updates for XRT drivers
Hi Lizhi,

I love your patch! Yet something to improve:

[auto build test ERROR on linux/master]
[also build test ERROR on linus/master v5.11 next-20210217]
[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/Lizhi-Hou/XRT-Alveo-driver-overview/20210218-151631
base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 2ab38c17aac10bf55ab3efde4c4db3893d8691d2
config: parisc-randconfig-r025-20210218 (attached as .config)
compiler: hppa64-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/9069f42b5fcafe471ceb1047ee53983098b2edba
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review Lizhi-Hou/XRT-Alveo-driver-overview/20210218-151631
git checkout 9069f42b5fcafe471ceb1047ee53983098b2edba
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc

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

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

drivers/fpga/xrt/lib/main.c: In function 'xleaf_register_driver':
>> drivers/fpga/xrt/lib/main.c:144:8: error: implicit declaration of function 'vzalloc'; did you mean 'kvzalloc'? [-Werror=implicit-function-declaration]
144 | map = vzalloc(sizeof(*map));
| ^~~~~~~
| kvzalloc
>> drivers/fpga/xrt/lib/main.c:144:6: warning: assignment to 'struct xrt_drv_map *' from 'int' makes pointer from integer without a cast [-Wint-conversion]
144 | map = vzalloc(sizeof(*map));
| ^
drivers/fpga/xrt/lib/main.c: In function 'xleaf_unregister_driver':
>> drivers/fpga/xrt/lib/main.c:181:2: error: implicit declaration of function 'vfree'; did you mean 'kvfree'? [-Werror=implicit-function-declaration]
181 | vfree(map);
| ^~~~~
| kvfree
cc1: some warnings being treated as errors


vim +144 drivers/fpga/xrt/lib/main.c

898da78383bc51 Lizhi Hou 2021-02-17 127
898da78383bc51 Lizhi Hou 2021-02-17 128 int xleaf_register_driver(enum xrt_subdev_id id,
898da78383bc51 Lizhi Hou 2021-02-17 129 struct platform_driver *drv,
898da78383bc51 Lizhi Hou 2021-02-17 130 struct xrt_subdev_endpoints *eps)
898da78383bc51 Lizhi Hou 2021-02-17 131 {
898da78383bc51 Lizhi Hou 2021-02-17 132 struct xrt_drv_map *map;
898da78383bc51 Lizhi Hou 2021-02-17 133
898da78383bc51 Lizhi Hou 2021-02-17 134 mutex_lock(&xrt_lib_lock);
898da78383bc51 Lizhi Hou 2021-02-17 135
898da78383bc51 Lizhi Hou 2021-02-17 136 map = xrt_drv_find_map_by_id_nolock(id);
898da78383bc51 Lizhi Hou 2021-02-17 137 if (map) {
898da78383bc51 Lizhi Hou 2021-02-17 138 mutex_unlock(&xrt_lib_lock);
898da78383bc51 Lizhi Hou 2021-02-17 139 pr_err("Id %d already has a registered driver, 0x%p\n",
898da78383bc51 Lizhi Hou 2021-02-17 140 id, map->drv);
898da78383bc51 Lizhi Hou 2021-02-17 141 return -EEXIST;
898da78383bc51 Lizhi Hou 2021-02-17 142 }
898da78383bc51 Lizhi Hou 2021-02-17 143
898da78383bc51 Lizhi Hou 2021-02-17 @144 map = vzalloc(sizeof(*map));
898da78383bc51 Lizhi Hou 2021-02-17 145 if (!map) {
898da78383bc51 Lizhi Hou 2021-02-17 146 mutex_unlock(&xrt_lib_lock);
898da78383bc51 Lizhi Hou 2021-02-17 147 return -ENOMEM;
898da78383bc51 Lizhi Hou 2021-02-17 148 }
898da78383bc51 Lizhi Hou 2021-02-17 149 map->id = id;
898da78383bc51 Lizhi Hou 2021-02-17 150 map->drv = drv;
898da78383bc51 Lizhi Hou 2021-02-17 151 map->eps = eps;
898da78383bc51 Lizhi Hou 2021-02-17 152
898da78383bc51 Lizhi Hou 2021-02-17 153 xrt_drv_register_driver(map);
898da78383bc51 Lizhi Hou 2021-02-17 154
898da78383bc51 Lizhi Hou 2021-02-17 155 list_add(&map->list, &xrt_drv_maps);
898da78383bc51 Lizhi Hou 2021-02-17 156
898da78383bc51 Lizhi Hou 2021-02-17 157 mutex_unlock(&xrt_lib_lock);
898da78383bc51 Lizhi Hou 2021-02-17 158
898da78383bc51 Lizhi Hou 2021-02-17 159 return 0;
898da78383bc51 Lizhi Hou 2021-02-17 160 }
898da78383bc51 Lizhi Hou 2021-02-17 161 EXPORT_SYMBOL_GPL(xleaf_register_driver);
898da78383bc51 Lizhi Hou 2021-02-17 162
898da78383bc51 Lizhi Hou 2021-02-17 163 void xleaf_unregister_driver(enum xrt_subdev_id id)
898da78383bc51 Lizhi Hou 2021-02-17 164 {
898da78383bc51 Lizhi Hou 2021-02-17 165 struct xrt_drv_map *map;
898da78383bc51 Lizhi Hou 2021-02-17 166
898da78383bc51 Lizhi Hou 2021-02-17 167 mutex_lock(&xrt_lib_lock);
898da78383bc51 Lizhi Hou 2021-02-17 168
898da78383bc51 Lizhi Hou 2021-02-17 169 map = xrt_drv_find_map_by_id_nolock(id);
898da78383bc51 Lizhi Hou 2021-02-17 170 if (!map) {
898da78383bc51 Lizhi Hou 2021-02-17 171 mutex_unlock(&xrt_lib_lock);
898da78383bc51 Lizhi Hou 2021-02-17 172 pr_err("Id %d has no registered driver\n", id);
898da78383bc51 Lizhi Hou 2021-02-17 173 return;
898da78383bc51 Lizhi Hou 2021-02-17 174 }
898da78383bc51 Lizhi Hou 2021-02-17 175
898da78383bc51 Lizhi Hou 2021-02-17 176 list_del(&map->list);
898da78383bc51 Lizhi Hou 2021-02-17 177
898da78383bc51 Lizhi Hou 2021-02-17 178 mutex_unlock(&xrt_lib_lock);
898da78383bc51 Lizhi Hou 2021-02-17 179
898da78383bc51 Lizhi Hou 2021-02-17 180 xrt_drv_unregister_driver(map);
898da78383bc51 Lizhi Hou 2021-02-17 @181 vfree(map);
898da78383bc51 Lizhi Hou 2021-02-17 182 }
898da78383bc51 Lizhi Hou 2021-02-17 183 EXPORT_SYMBOL_GPL(xleaf_unregister_driver);
898da78383bc51 Lizhi Hou 2021-02-17 184

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