Hi Boris, I love your patch! Perhaps something to improve:
[auto build test WARNING on linus/master] [also build test WARNING on v5.2-rc2 next-20190530] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Boris-Brezillon/drm-panfrost-Expose-perf-counters-to-userspace/20190531-020136 config: arm-allmodconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 7.4.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # save the attached .config to linux build tree GCC_VERSION=7.4.0 make.cross ARCH=arm If you fix the issue, kindly add following tag Reported-by: kbuild test robot <l...@intel.com> All warnings (new ones prefixed by >>): drivers/gpu//drm/panfrost/panfrost_perfcnt.c: In function 'panfrost_ioctl_perfcnt_dump': >> drivers/gpu//drm/panfrost/panfrost_perfcnt.c:224:26: warning: cast to >> pointer from integer of different size [-Wint-to-pointer-cast] void __user *user_ptr = (void __user *)req->buf_ptr; ^ vim +224 drivers/gpu//drm/panfrost/panfrost_perfcnt.c 217 218 int panfrost_ioctl_perfcnt_dump(struct drm_device *dev, void *data, 219 struct drm_file *file_priv) 220 { 221 struct panfrost_device *pfdev = dev->dev_private; 222 struct panfrost_perfcnt *perfcnt = pfdev->perfcnt; 223 struct drm_panfrost_perfcnt_dump *req = data; > 224 void __user *user_ptr = (void __user *)req->buf_ptr; 225 int ret; 226 227 ret = panfrost_unstable_ioctl_check(); 228 if (ret) 229 return ret; 230 231 mutex_lock(&perfcnt->lock); 232 if (perfcnt->user != file_priv->driver_priv) { 233 ret = -EINVAL; 234 goto out; 235 } 236 237 ret = panfrost_perfcnt_dump_locked(pfdev); 238 if (ret) 239 goto out; 240 241 if (copy_to_user(user_ptr, perfcnt->buf, perfcnt->bosize)) 242 ret = -EFAULT; 243 244 out: 245 mutex_unlock(&perfcnt->lock); 246 247 return ret; 248 } 249 --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
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