Hi Sean, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on next-20201113] [also build test WARNING on v5.10-rc3] [cannot apply to drm-intel/for-linux-next char-misc/char-misc-testing v5.10-rc3 v5.10-rc2 v5.10-rc1] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Sean-Z-Huang/drm-i915-pxp-Introduce-Intel-PXP-component/20201114-094926 base: 92edc4aef86780a8ad01b092c6d6630bb3cb423d config: i386-randconfig-a012-20201113 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/1d109ada10e82c324682792cb0a20deef302336e git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Sean-Z-Huang/drm-i915-pxp-Introduce-Intel-PXP-component/20201114-094926 git checkout 1d109ada10e82c324682792cb0a20deef302336e # save the attached .config to linux build tree make W=1 ARCH=i386 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): drivers/gpu/drm/i915/pxp/intel_pxp.c: In function 'i915_pxp_ops_ioctl': >> drivers/gpu/drm/i915/pxp/intel_pxp.c:26:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 26 | if (copy_from_user(&pxp_info, (void __user *)pxp_ops->pxp_info_ptr, sizeof(pxp_info)) != 0) { | ^ drivers/gpu/drm/i915/pxp/intel_pxp.c:65:20: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 65 | if (copy_to_user((void __user *)pxp_ops->pxp_info_ptr, &pxp_info, sizeof(pxp_info)) != 0) | ^ vim +26 drivers/gpu/drm/i915/pxp/intel_pxp.c 10 11 int i915_pxp_ops_ioctl(struct drm_device *dev, void *data, struct drm_file *drmfile) 12 { 13 int ret; 14 struct pxp_info pxp_info = {0}; 15 struct drm_i915_pxp_ops *pxp_ops = data; 16 struct drm_i915_private *i915 = to_i915(dev); 17 18 drm_dbg(&i915->drm, ">>> %s\n", __func__); 19 20 if (!i915 || !drmfile || !pxp_ops || pxp_ops->pxp_info_size != sizeof(pxp_info)) { 21 drm_dbg(&i915->drm, "Failed to %s, invalid params\n", __func__); 22 ret = -EINVAL; 23 goto end; 24 } 25 > 26 if (copy_from_user(&pxp_info, (void __user *)pxp_ops->pxp_info_ptr, sizeof(pxp_info)) != 0) { 27 ret = -EFAULT; 28 goto end; 29 } 30 31 drm_dbg(&i915->drm, "i915 pxp ioctl call with action=[%d]\n", pxp_info.action); 32 33 mutex_lock(&i915->pxp.r0ctx->ctx_mutex); 34 35 if (i915->pxp.r0ctx->global_state_in_suspend) { 36 drm_dbg(&i915->drm, "Return failure due to state in suspend\n"); 37 pxp_info.sm_status = PXP_SM_STATUS_SESSION_NOT_AVAILABLE; 38 ret = 0; 39 goto end; 40 } 41 42 if (i915->pxp.r0ctx->global_state_attacked) { 43 drm_dbg(&i915->drm, "Retry required due to state attacked\n"); 44 pxp_info.sm_status = PXP_SM_STATUS_RETRY_REQUIRED; 45 ret = 0; 46 goto end; 47 } 48 49 switch (pxp_info.action) { 50 case PXP_ACTION_SET_R3_CONTEXT: 51 { 52 ret = intel_pxp_set_r3ctx(i915, pxp_info.set_r3ctx); 53 break; 54 } 55 default: 56 drm_dbg(&i915->drm, "Failed to %s due to bad params\n", __func__); 57 ret = -EINVAL; 58 goto end; 59 } 60 61 end: 62 mutex_unlock(&i915->pxp.r0ctx->ctx_mutex); 63 64 if (ret == 0) 65 if (copy_to_user((void __user *)pxp_ops->pxp_info_ptr, &pxp_info, sizeof(pxp_info)) != 0) 66 ret = -EFAULT; 67 68 if (ret) 69 dev_err(&dev->pdev->dev, "pid=%d, ret = %d\n", task_pid_nr(current), ret); 70 71 drm_dbg(&i915->drm, "<<< %s\n", __func__); 72 return ret; 73 } 74 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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