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Mon, 04 Dec 2023 11:02:37 +0000 Date: Mon, 4 Dec 2023 19:02:03 +0800 From: kernel test robot To: Kees Cook Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Nick Desaulniers Subject: arch/powerpc/platforms/powermac/nvram.c:304:24: sparse: sparse: incorrect type in argument 1 (different address spaces) Message-ID: <202312041835.DSQPXMaZ-lkp@intel.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 33cc938e65a98f1d29d0a18403dbbee050dcad9a commit: 0a2b782a00f33e7d06dc43d099fa071ae97bee77 fortify: Make pointer arguments const date: 1 year, 10 months ago config: powerpc64-randconfig-r122-20231117 (https://download.01.org/0day-ci/archive/20231204/202312041835.DSQPXMaZ-lkp@intel.com/config) compiler: powerpc64-linux-gcc (GCC) 13.2.0 reproduce: (https://download.01.org/0day-ci/archive/20231204/202312041835.DSQPXMaZ-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 | Closes: https://lore.kernel.org/oe-kbuild-all/202312041835.DSQPXMaZ-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> arch/powerpc/platforms/powermac/nvram.c:304:24: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *const p @@ got unsigned char [noderef] [usertype] __iomem *base @@ arch/powerpc/platforms/powermac/nvram.c:304:24: sparse: expected void const *const p arch/powerpc/platforms/powermac/nvram.c:304:24: sparse: got unsigned char [noderef] [usertype] __iomem *base arch/powerpc/platforms/powermac/nvram.c:338:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *const p @@ got unsigned char [noderef] [usertype] __iomem *base @@ arch/powerpc/platforms/powermac/nvram.c:338:20: sparse: expected void const *const p arch/powerpc/platforms/powermac/nvram.c:338:20: sparse: got unsigned char [noderef] [usertype] __iomem *base arch/powerpc/platforms/powermac/nvram.c:384:24: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *const p @@ got unsigned char [noderef] [usertype] __iomem *base @@ arch/powerpc/platforms/powermac/nvram.c:384:24: sparse: expected void const *const p arch/powerpc/platforms/powermac/nvram.c:384:24: sparse: got unsigned char [noderef] [usertype] __iomem *base arch/powerpc/platforms/powermac/nvram.c:429:20: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void const *const p @@ got unsigned char [noderef] [usertype] __iomem *base @@ arch/powerpc/platforms/powermac/nvram.c:429:20: sparse: expected void const *const p arch/powerpc/platforms/powermac/nvram.c:429:20: sparse: got unsigned char [noderef] [usertype] __iomem *base arch/powerpc/platforms/powermac/nvram.c:480:35: sparse: sparse: cast removes address space '__iomem' of expression arch/powerpc/platforms/powermac/nvram.c:526:35: sparse: sparse: cast removes address space '__iomem' of expression arch/powerpc/platforms/powermac/nvram.c:527:35: sparse: sparse: cast removes address space '__iomem' of expression arch/powerpc/platforms/powermac/nvram.c:534:44: sparse: sparse: dereference of noderef expression vim +304 arch/powerpc/platforms/powermac/nvram.c 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 279 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 280 static int sm_erase_bank(int bank) 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 281 { 2d4b971287cbce arch/powerpc/platforms/powermac/nvram.c Akinobu Mita 2012-01-27 282 int stat; 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 283 unsigned long timeout; 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 284 af308377e204e2 arch/powerpc/platforms/powermac/nvram.c Stephen Rothwell 2006-03-23 285 u8 __iomem *base = (u8 __iomem *)nvram_data + core99_bank*NVRAM_SIZE; 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 286 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 287 DBG("nvram: Sharp/Micron Erasing bank %d...\n", bank); 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 288 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 289 out_8(base, SM_FLASH_CMD_ERASE_SETUP); 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 290 out_8(base, SM_FLASH_CMD_ERASE_CONFIRM); 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 291 timeout = 0; 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 292 do { 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 293 if (++timeout > 1000000) { 35499c0195e46f arch/powerpc/platforms/powermac/nvram.c Paul Mackerras 2005-10-22 294 printk(KERN_ERR "nvram: Sharp/Micron flash erase timeout !\n"); 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 295 break; 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 296 } 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 297 out_8(base, SM_FLASH_CMD_READ_STATUS); 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 298 stat = in_8(base); 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 299 } while (!(stat & SM_FLASH_STATUS_DONE)); 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 300 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 301 out_8(base, SM_FLASH_CMD_CLEAR_STATUS); 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 302 out_8(base, SM_FLASH_CMD_RESET); 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 303 2d4b971287cbce arch/powerpc/platforms/powermac/nvram.c Akinobu Mita 2012-01-27 @304 if (memchr_inv(base, 0xff, NVRAM_SIZE)) { 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 305 printk(KERN_ERR "nvram: Sharp/Micron flash erase failed !\n"); 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 306 return -ENXIO; 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 307 } 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 308 return 0; 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 309 } 14cf11af6cf608 arch/powerpc/platforms/powermac/pmac_nvram.c Paul Mackerras 2005-09-26 310 :::::: The code at line 304 was first introduced by commit :::::: 2d4b971287cbce16585acda4b76308faa8da0950 powerpc/pmac: Use string library in nvram code :::::: TO: Akinobu Mita :::::: CC: Benjamin Herrenschmidt -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki