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X-CSE-ConnectionGUID: RDGqsFG4ReG0pnUD9lKW8A== X-CSE-MsgGUID: vbwuKPSTT/2/tI/czZoe4g== X-IronPort-AV: E=McAfee;i="6800,10657,11796"; a="80353523" X-IronPort-AV: E=Sophos;i="6.24,167,1774335600"; d="scan'208";a="80353523" Received: from orviesa010.jf.intel.com ([10.64.159.150]) by fmvoesa111.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 24 May 2026 19:53:51 -0700 X-CSE-ConnectionGUID: +nBBoSaMQ8+joiv4eU9t5w== X-CSE-MsgGUID: mX2QH8VlQzuXQ2hinJMIhA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.24,167,1774335600"; d="scan'208";a="240638016" Received: from lkp-server01.sh.intel.com (HELO f0d55cb201f0) ([10.239.97.150]) by orviesa010.jf.intel.com with ESMTP; 24 May 2026 19:53:49 -0700 Received: from kbuild by f0d55cb201f0 with local (Exim 4.98.2) (envelope-from ) id 1wRLRq-000000000tT-15uM; Mon, 25 May 2026 02:53:46 +0000 Date: Mon, 25 May 2026 10:52:57 +0800 From: kernel test robot To: Tiwei Bie Cc: oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org, Johannes Berg Subject: fs/pstore/ram_core.c:278:34: sparse: sparse: incorrect type in argument 1 (different address spaces) Message-ID: <202605251003.InuuGWYe-lkp@intel.com> User-Agent: s-nail v14.9.25 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Hi Tiwei, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: e7ae89a0c97ce2b68b0983cd01eda67cf373517d commit: a0e2cb6a90634f3dc80f16e882a683ee5761b0b0 um: Add VFIO-based virtual PCI driver date: 1 year, 1 month ago config: um-randconfig-r123-20260525 (https://download.01.org/0day-ci/archive/20260525/202605251003.InuuGWYe-lkp@intel.com/config) compiler: gcc-13 (Debian 13.3.0-16) 13.3.0 sparse: v0.6.5-rc1 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260525/202605251003.InuuGWYe-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 | Fixes: a0e2cb6a9063 ("um: Add VFIO-based virtual PCI driver") | Reported-by: kernel test robot | Closes: https://lore.kernel.org/oe-kbuild-all/202605251003.InuuGWYe-lkp@intel.com/ sparse warnings: (new ones prefixed by >>) >> fs/pstore/ram_core.c:278:34: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got unsigned char * @@ fs/pstore/ram_core.c:278:34: sparse: expected void volatile [noderef] __iomem *addr fs/pstore/ram_core.c:278:34: sparse: got unsigned char * >> fs/pstore/ram_core.c:311:50: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned char * @@ fs/pstore/ram_core.c:311:50: sparse: expected void const volatile [noderef] __iomem *addr fs/pstore/ram_core.c:311:50: sparse: got unsigned char * fs/pstore/ram_core.c:312:65: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const volatile [noderef] __iomem *addr @@ got unsigned char * @@ fs/pstore/ram_core.c:312:65: sparse: expected void const volatile [noderef] __iomem *addr fs/pstore/ram_core.c:312:65: sparse: got unsigned char * fs/pstore/ram_core.c:470:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *va @@ got void [noderef] __iomem * @@ fs/pstore/ram_core.c:470:20: sparse: expected void *va fs/pstore/ram_core.c:470:20: sparse: got void [noderef] __iomem * fs/pstore/ram_core.c:472:20: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *va @@ got void [noderef] __iomem * @@ fs/pstore/ram_core.c:472:20: sparse: expected void *va fs/pstore/ram_core.c:472:20: sparse: got void [noderef] __iomem * fs/pstore/ram_core.c:566:36: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void volatile [noderef] __iomem *addr @@ got void *vaddr @@ fs/pstore/ram_core.c:566:36: sparse: expected void volatile [noderef] __iomem *addr fs/pstore/ram_core.c:566:36: sparse: got void *vaddr fs/pstore/ram_core.c:69:17: sparse: sparse: context imbalance in 'buffer_start_add' - unexpected unlock fs/pstore/ram_core.c:95:17: sparse: sparse: context imbalance in 'buffer_size_add' - unexpected unlock vim +278 fs/pstore/ram_core.c 9cc05ad97c5728 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 273 a15d0b365e9bbf drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 274 static void notrace persistent_ram_update(struct persistent_ram_zone *prz, 808d0387eb7df3 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 275 const void *s, unsigned int start, unsigned int count) 9cc05ad97c5728 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 276 { 9cc05ad97c5728 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 277 struct persistent_ram_buffer *buffer = prz->buffer; 7e75678d23167c fs/pstore/ram_core.c Furquan Shaikh 2016-02-15 @278 memcpy_toio(buffer->data + start, s, count); 808d0387eb7df3 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 279 persistent_ram_update_ecc(prz, start, count); 9cc05ad97c5728 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 280 } 9cc05ad97c5728 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 281 5bf6d1b92715f2 fs/pstore/ram_core.c Mark Salyzyn 2016-09-01 282 static int notrace persistent_ram_update_user(struct persistent_ram_zone *prz, 5bf6d1b92715f2 fs/pstore/ram_core.c Mark Salyzyn 2016-09-01 283 const void __user *s, unsigned int start, unsigned int count) 5bf6d1b92715f2 fs/pstore/ram_core.c Mark Salyzyn 2016-09-01 284 { 5bf6d1b92715f2 fs/pstore/ram_core.c Mark Salyzyn 2016-09-01 285 struct persistent_ram_buffer *buffer = prz->buffer; ff847781049c37 fs/pstore/ram_core.c Al Viro 2020-02-18 286 int ret = unlikely(copy_from_user(buffer->data + start, s, count)) ? 5bf6d1b92715f2 fs/pstore/ram_core.c Mark Salyzyn 2016-09-01 287 -EFAULT : 0; 5bf6d1b92715f2 fs/pstore/ram_core.c Mark Salyzyn 2016-09-01 288 persistent_ram_update_ecc(prz, start, count); 5bf6d1b92715f2 fs/pstore/ram_core.c Mark Salyzyn 2016-09-01 289 return ret; 5bf6d1b92715f2 fs/pstore/ram_core.c Mark Salyzyn 2016-09-01 290 } 5bf6d1b92715f2 fs/pstore/ram_core.c Mark Salyzyn 2016-09-01 291 201e4aca5aa179 fs/pstore/ram_core.c Anton Vorontsov 2012-05-26 292 void persistent_ram_save_old(struct persistent_ram_zone *prz) 9cc05ad97c5728 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 293 { 9cc05ad97c5728 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 294 struct persistent_ram_buffer *buffer = prz->buffer; 808d0387eb7df3 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 295 size_t size = buffer_size(prz); 808d0387eb7df3 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 296 size_t start = buffer_start(prz); 9cc05ad97c5728 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 297 201e4aca5aa179 fs/pstore/ram_core.c Anton Vorontsov 2012-05-26 298 if (!size) 201e4aca5aa179 fs/pstore/ram_core.c Anton Vorontsov 2012-05-26 299 return; c672528aec4a1c drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 300 201e4aca5aa179 fs/pstore/ram_core.c Anton Vorontsov 2012-05-26 301 if (!prz->old_log) { 201e4aca5aa179 fs/pstore/ram_core.c Anton Vorontsov 2012-05-26 302 persistent_ram_ecc_old(prz); 104fd0b5e94815 fs/pstore/ram_core.c Yuxiao Zhang 2023-06-27 303 prz->old_log = kvzalloc(size, GFP_KERNEL); 201e4aca5aa179 fs/pstore/ram_core.c Anton Vorontsov 2012-05-26 304 } 201e4aca5aa179 fs/pstore/ram_core.c Anton Vorontsov 2012-05-26 305 if (!prz->old_log) { ef74885353e0ee fs/pstore/ram_core.c Fabian Frederick 2014-06-06 306 pr_err("failed to allocate buffer\n"); c672528aec4a1c drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 307 return; c672528aec4a1c drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 308 } c672528aec4a1c drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 309 808d0387eb7df3 drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 310 prz->old_log_size = size; d771fdf94180de fs/pstore/ram_core.c Andrew Bresticker 2016-02-15 @311 memcpy_fromio(prz->old_log, &buffer->data[start], size - start); d771fdf94180de fs/pstore/ram_core.c Andrew Bresticker 2016-02-15 312 memcpy_fromio(prz->old_log + size - start, &buffer->data[0], start); c672528aec4a1c drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 313 } c672528aec4a1c drivers/staging/android/persistent_ram.c Colin Cross 2012-03-07 314 :::::: The code at line 278 was first introduced by commit :::::: 7e75678d23167c2527e655658a8ef36a36c8b4d9 pstore/ram: Use memcpy_toio instead of memcpy :::::: TO: Furquan Shaikh :::::: CC: Kees Cook -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki