Messages in this thread |  | | Date | Sun, 17 Jul 2022 15:04:26 +0800 | From | kernel test robot <> | Subject | [pdx86-platform-drivers-x86:for-next 56/92] drivers/platform/surface/surface_aggregator_tabletsw.c:425:9: sparse: sparse: restricted __le32 degrades to integer |
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tree: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git for-next head: 5c8b3f11565e64366d53295e8004edaa1fcf1ec9 commit: 9f794056db5bb1e1add83ed553b6aec57298358c [56/92] platform/surface: Add KIP/POS tablet-mode switch driver config: x86_64-allmodconfig (https://download.01.org/0day-ci/archive/20220717/202207171459.4Xx3ULcF-lkp@intel.com/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.4-39-gce1a6720-dirty # https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/commit/?id=9f794056db5bb1e1add83ed553b6aec57298358c git remote add pdx86-platform-drivers-x86 https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git git fetch --no-tags pdx86-platform-drivers-x86 for-next git checkout 9f794056db5bb1e1add83ed553b6aec57298358c # save the config file mkdir build_dir && cp config build_dir/.config make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=x86_64 SHELL=/bin/bash drivers/misc/lkdtm/ drivers/platform/surface/ drivers/platform/x86/intel/ kernel/trace/
If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@intel.com>
sparse warnings: (new ones prefixed by >>) >> drivers/platform/surface/surface_aggregator_tabletsw.c:425:9: sparse: sparse: restricted __le32 degrades to integer
vim +425 drivers/platform/surface/surface_aggregator_tabletsw.c
403 404 static int ssam_pos_get_source(struct ssam_tablet_sw *sw, u32 *source_id) 405 { 406 struct ssam_sources_list sources = {}; 407 int status; 408 409 status = ssam_pos_get_sources_list(sw, &sources); 410 if (status) 411 return status; 412 413 if (sources.count == 0) { 414 dev_err(&sw->sdev->dev, "no posture sources found\n"); 415 return -ENODEV; 416 } 417 418 /* 419 * We currently don't know what to do with more than one posture 420 * source. At the moment, only one source seems to be used/provided. 421 * The WARN_ON() here should hopefully let us know quickly once there 422 * is a device that provides multiple sources, at which point we can 423 * then try to figure out how to handle them. 424 */ > 425 WARN_ON(sources.count > 1); 426 427 *source_id = get_unaligned_le32(&sources.id[0]); 428 return 0; 429 } 430
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