CC: [email protected] TO: Otavio Salvador <[email protected]>
tree: https://github.com/Freescale/linux-fslc pr/78 head: 35b10ca99cd3cb57e545010466bbd588987c96f6 commit: c4287bfaf7c63415030936b0a55fe255738cb167 [2753/3687] vfio/fsl-mc: Add read/write support for fsl-mc devices :::::: branch date: 8 months ago :::::: commit date: 9 months ago config: i386-randconfig-s001-20210128 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce: # apt-get install sparse # sparse version: v0.6.3-212-g56dbccf5-dirty # https://github.com/Freescale/linux-fslc/commit/c4287bfaf7c63415030936b0a55fe255738cb167 git remote add freescale-fslc https://github.com/Freescale/linux-fslc git fetch --no-tags freescale-fslc pr/78 git checkout c4287bfaf7c63415030936b0a55fe255738cb167 # save the attached .config to linux build tree make W=1 C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <[email protected]> "sparse warnings: (new ones prefixed by >>)" drivers/vfio/fsl-mc/vfio_fsl_mc.c:163:26: sparse: sparse: undefined identifier 'to_fsl_mc_bus' drivers/vfio/fsl-mc/vfio_fsl_mc.c:168:23: sparse: sparse: undefined identifier 'dprc_reset_container' drivers/vfio/fsl-mc/vfio_fsl_mc.c:174:17: sparse: sparse: undefined identifier 'fsl_mc_cleanup_irq_pool' drivers/vfio/fsl-mc/vfio_fsl_mc.c:348:27: sparse: sparse: undefined identifier 'readq' drivers/vfio/fsl-mc/vfio_fsl_mc.c:367:17: sparse: sparse: undefined identifier 'writeq_relaxed' drivers/vfio/fsl-mc/vfio_fsl_mc.c:370:9: sparse: sparse: undefined identifier 'writeq' drivers/vfio/fsl-mc/vfio_fsl_mc.c:380:26: sparse: sparse: undefined identifier 'readq_relaxed' >> drivers/vfio/fsl-mc/vfio_fsl_mc.c:380:26: sparse: sparse: cast from unknown >> type drivers/vfio/fsl-mc/vfio_fsl_mc.c:523:15: sparse: sparse: undefined identifier 'fsl_create_mc_io' drivers/vfio/fsl-mc/vfio_fsl_mc.c:533:15: sparse: sparse: undefined identifier 'dprc_open' drivers/vfio/fsl-mc/vfio_fsl_mc.c:540:18: sparse: sparse: undefined identifier 'to_fsl_mc_bus' drivers/vfio/fsl-mc/vfio_fsl_mc.c:542:9: sparse: sparse: undefined identifier 'fsl_mc_init_all_resource_pools' drivers/vfio/fsl-mc/vfio_fsl_mc.c:544:9: sparse: sparse: using member 'scan_mutex' in incomplete struct fsl_mc_bus drivers/vfio/fsl-mc/vfio_fsl_mc.c:546:9: sparse: sparse: using member 'scan_mutex' in incomplete struct fsl_mc_bus drivers/vfio/fsl-mc/vfio_fsl_mc.c:547:15: sparse: sparse: undefined identifier 'dprc_scan_objects' drivers/vfio/fsl-mc/vfio_fsl_mc.c:549:29: sparse: sparse: using member 'scan_mutex' in incomplete struct fsl_mc_bus drivers/vfio/fsl-mc/vfio_fsl_mc.c:556:25: sparse: sparse: undefined identifier 'FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS' drivers/vfio/fsl-mc/vfio_fsl_mc.c:557:17: sparse: sparse: undefined identifier 'FSL_MC_IRQ_POOL_MAX_TOTAL_IRQS' drivers/vfio/fsl-mc/vfio_fsl_mc.c:565:9: sparse: sparse: undefined identifier 'fsl_mc_cleanup_all_resource_pools' drivers/vfio/fsl-mc/vfio_fsl_mc.c:566:9: sparse: sparse: undefined identifier 'dprc_close' drivers/vfio/fsl-mc/vfio_fsl_mc.c:569:9: sparse: sparse: undefined identifier 'fsl_destroy_mc_io' drivers/vfio/fsl-mc/vfio_fsl_mc.c:635:9: sparse: sparse: undefined identifier 'fsl_mc_device_remove' drivers/vfio/fsl-mc/vfio_fsl_mc.c:643:9: sparse: sparse: undefined identifier 'fsl_mc_cleanup_all_resource_pools' drivers/vfio/fsl-mc/vfio_fsl_mc.c:644:9: sparse: sparse: undefined identifier 'dprc_close' drivers/vfio/fsl-mc/vfio_fsl_mc.c:645:9: sparse: sparse: undefined identifier 'fsl_destroy_mc_io' vim +380 drivers/vfio/fsl-mc/vfio_fsl_mc.c c4287bfaf7c634 Diana Craciun 2019-10-02 358 c4287bfaf7c634 Diana Craciun 2019-10-02 359 static int vfio_fsl_mc_send_command(void __iomem *ioaddr, uint64_t *cmd_data) c4287bfaf7c634 Diana Craciun 2019-10-02 360 { c4287bfaf7c634 Diana Craciun 2019-10-02 361 int i; c4287bfaf7c634 Diana Craciun 2019-10-02 362 enum mc_cmd_status status; c4287bfaf7c634 Diana Craciun 2019-10-02 363 unsigned long timeout_usecs = MC_CMD_COMPLETION_TIMEOUT_MS * 1000; c4287bfaf7c634 Diana Craciun 2019-10-02 364 c4287bfaf7c634 Diana Craciun 2019-10-02 365 /* Write at command parameter into portal */ c4287bfaf7c634 Diana Craciun 2019-10-02 366 for (i = 7; i >= 1; i--) c4287bfaf7c634 Diana Craciun 2019-10-02 367 writeq_relaxed(cmd_data[i], ioaddr + i * sizeof(uint64_t)); c4287bfaf7c634 Diana Craciun 2019-10-02 368 c4287bfaf7c634 Diana Craciun 2019-10-02 369 /* Write command header in the end */ c4287bfaf7c634 Diana Craciun 2019-10-02 370 writeq(cmd_data[0], ioaddr); c4287bfaf7c634 Diana Craciun 2019-10-02 371 c4287bfaf7c634 Diana Craciun 2019-10-02 372 /* Wait for response before returning to user-space c4287bfaf7c634 Diana Craciun 2019-10-02 373 * This can be optimized in future to even prepare response c4287bfaf7c634 Diana Craciun 2019-10-02 374 * before returning to user-space and avoid read ioctl. c4287bfaf7c634 Diana Craciun 2019-10-02 375 */ c4287bfaf7c634 Diana Craciun 2019-10-02 376 for (;;) { c4287bfaf7c634 Diana Craciun 2019-10-02 377 u64 header; c4287bfaf7c634 Diana Craciun 2019-10-02 378 struct mc_cmd_header *resp_hdr; c4287bfaf7c634 Diana Craciun 2019-10-02 379 c4287bfaf7c634 Diana Craciun 2019-10-02 @380 header = cpu_to_le64(readq_relaxed(ioaddr)); c4287bfaf7c634 Diana Craciun 2019-10-02 381 c4287bfaf7c634 Diana Craciun 2019-10-02 382 resp_hdr = (struct mc_cmd_header *)&header; c4287bfaf7c634 Diana Craciun 2019-10-02 383 status = (enum mc_cmd_status)resp_hdr->status; c4287bfaf7c634 Diana Craciun 2019-10-02 384 if (status != MC_CMD_STATUS_READY) c4287bfaf7c634 Diana Craciun 2019-10-02 385 break; c4287bfaf7c634 Diana Craciun 2019-10-02 386 c4287bfaf7c634 Diana Craciun 2019-10-02 387 udelay(MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS); c4287bfaf7c634 Diana Craciun 2019-10-02 388 timeout_usecs -= MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS; c4287bfaf7c634 Diana Craciun 2019-10-02 389 if (timeout_usecs == 0) c4287bfaf7c634 Diana Craciun 2019-10-02 390 return -ETIMEDOUT; 21a89eb667e31f Bharat Bhushan 2017-05-12 391 } 21a89eb667e31f Bharat Bhushan 2017-05-12 392 c4287bfaf7c634 Diana Craciun 2019-10-02 393 return 0; c4287bfaf7c634 Diana Craciun 2019-10-02 394 } c4287bfaf7c634 Diana Craciun 2019-10-02 395 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected]
.config.gz
Description: application/gzip
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