tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 18c107a1f120d095404d141dfad8f594bdc44020 commit: a4740b148a04dc60e14fe6a1dfe216d3bae214fd [4332/12552] firmware: tegra: bpmp: Do only aligned access to IPC memory area config: arm-randconfig-s042-20220721 (https://download.01.org/0day-ci/archive/20220725/202207250715.8g5iCHHS-lkp@xxxxxxxxx/config) compiler: arm-linux-gnueabi-gcc (GCC) 12.1.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=a4740b148a04dc60e14fe6a1dfe216d3bae214fd git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout a4740b148a04dc60e14fe6a1dfe216d3bae214fd # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=arm SHELL=/bin/bash drivers/firmware/tegra/ drivers/gpu/drm/qxl/ drivers/gpu/drm/ttm/ drivers/video/fbdev/aty/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> sparse warnings: (new ones prefixed by >>) >> drivers/firmware/tegra/bpmp.c:204:17: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const volatile [noderef] __iomem *from @@ got unsigned char * @@ drivers/firmware/tegra/bpmp.c:204:17: sparse: expected void const volatile [noderef] __iomem *from drivers/firmware/tegra/bpmp.c:204:17: sparse: got unsigned char * >> drivers/firmware/tegra/bpmp.c:248:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *to @@ got unsigned char * @@ drivers/firmware/tegra/bpmp.c:248:17: sparse: expected void volatile [noderef] __iomem *to drivers/firmware/tegra/bpmp.c:248:17: sparse: got unsigned char * drivers/firmware/tegra/bpmp.c:423:17: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *to @@ got unsigned char * @@ drivers/firmware/tegra/bpmp.c:423:17: sparse: expected void volatile [noderef] __iomem *to drivers/firmware/tegra/bpmp.c:423:17: sparse: got unsigned char * drivers/firmware/tegra/bpmp.c:505:53: sparse: sparse: incorrect type in initializer (different base types) @@ expected unsigned int [usertype] mrq @@ got restricted __le32 [usertype] @@ drivers/firmware/tegra/bpmp.c:505:53: sparse: expected unsigned int [usertype] mrq drivers/firmware/tegra/bpmp.c:505:53: sparse: got restricted __le32 [usertype] vim +204 drivers/firmware/tegra/bpmp.c 197 198 static ssize_t __tegra_bpmp_channel_read(struct tegra_bpmp_channel *channel, 199 void *data, size_t size, int *ret) 200 { 201 int err; 202 203 if (data && size > 0) > 204 memcpy_fromio(data, channel->ib->data, size); 205 206 err = tegra_bpmp_ack_response(channel); 207 if (err < 0) 208 return err; 209 210 *ret = channel->ib->code; 211 212 return 0; 213 } 214 215 static ssize_t tegra_bpmp_channel_read(struct tegra_bpmp_channel *channel, 216 void *data, size_t size, int *ret) 217 { 218 struct tegra_bpmp *bpmp = channel->bpmp; 219 unsigned long flags; 220 ssize_t err; 221 int index; 222 223 index = tegra_bpmp_channel_get_thread_index(channel); 224 if (index < 0) { 225 err = index; 226 goto unlock; 227 } 228 229 spin_lock_irqsave(&bpmp->lock, flags); 230 err = __tegra_bpmp_channel_read(channel, data, size, ret); 231 clear_bit(index, bpmp->threaded.allocated); 232 spin_unlock_irqrestore(&bpmp->lock, flags); 233 234 unlock: 235 up(&bpmp->threaded.lock); 236 237 return err; 238 } 239 240 static ssize_t __tegra_bpmp_channel_write(struct tegra_bpmp_channel *channel, 241 unsigned int mrq, unsigned long flags, 242 const void *data, size_t size) 243 { 244 channel->ob->code = mrq; 245 channel->ob->flags = flags; 246 247 if (data && size > 0) > 248 memcpy_toio(channel->ob->data, data, size); 249 250 return tegra_bpmp_post_request(channel); 251 } 252 -- 0-DAY CI Kernel Test Service https://01.org/lkp
