From: Jani Nikula <jani.nikula@intel.com>
To: Dan Carpenter <dan.carpenter@linaro.org>,
oe-kbuild@lists.linux.dev, intel-gfx@lists.freedesktop.org
Cc: oe-kbuild-all@lists.linux.dev
Subject: Re: [Intel-gfx] [PATCH 01/15] drm/i915/plane: warn on non-zero plane offset
Date: Mon, 29 May 2023 13:04:41 +0300 [thread overview]
Message-ID: <87zg5nh2rq.fsf@intel.com> (raw)
In-Reply-To: <67cd1180-7ffb-46f6-ab30-717219a654fe@kili.mountain>
On Mon, 29 May 2023, Dan Carpenter <dan.carpenter@linaro.org> wrote:
> Hi Jani,
>
> kernel test robot noticed the following build warnings:
Thanks, v2 already on the list:
https://patchwork.freedesktop.org/patch/msgid/20230526172218.1597394-1-jani.nikula@intel.com
>
> url: https://github.com/intel-lab-lkp/linux/commits/Jani-Nikula/drm-i915-plane-warn-on-non-zero-plane-offset/20230527-003951
> base: git://anongit.freedesktop.org/drm/drm-tip drm-tip
> patch link: https://lore.kernel.org/r/0988d237e56c56568f035053da8e2e2308a17d3a.1685119007.git.jani.nikula%40intel.com
> patch subject: [Intel-gfx] [PATCH 01/15] drm/i915/plane: warn on non-zero plane offset
> config: x86_64-randconfig-m031-20230526 (https://download.01.org/0day-ci/archive/20230528/202305280453.8yzCMS2i-lkp@intel.com/config)
> compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
>
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@intel.com>
> | Reported-by: Dan Carpenter <error27@gmail.com>
> | Closes: https://lore.kernel.org/r/202305280453.8yzCMS2i-lkp@intel.com/
>
> smatch warnings:
> drivers/gpu/drm/i915/display/i9xx_plane.c:1040 i9xx_get_initial_plane_config() error: uninitialized symbol 'offset'.
>
> vim +/offset +1040 drivers/gpu/drm/i915/display/i9xx_plane.c
>
> 2a3014490cd18a Dave Airlie 2021-02-05 974 void
> 2a3014490cd18a Dave Airlie 2021-02-05 975 i9xx_get_initial_plane_config(struct intel_crtc *crtc,
> 2a3014490cd18a Dave Airlie 2021-02-05 976 struct intel_initial_plane_config *plane_config)
> 2a3014490cd18a Dave Airlie 2021-02-05 977 {
> 2a3014490cd18a Dave Airlie 2021-02-05 978 struct drm_device *dev = crtc->base.dev;
> 2a3014490cd18a Dave Airlie 2021-02-05 979 struct drm_i915_private *dev_priv = to_i915(dev);
> 2a3014490cd18a Dave Airlie 2021-02-05 980 struct intel_plane *plane = to_intel_plane(crtc->base.primary);
> 2a3014490cd18a Dave Airlie 2021-02-05 981 enum i9xx_plane_id i9xx_plane = plane->i9xx_plane;
> 2a3014490cd18a Dave Airlie 2021-02-05 982 enum pipe pipe;
> 2a3014490cd18a Dave Airlie 2021-02-05 983 u32 val, base, offset;
> 2a3014490cd18a Dave Airlie 2021-02-05 984 int fourcc, pixel_format;
> 2a3014490cd18a Dave Airlie 2021-02-05 985 unsigned int aligned_height;
> 2a3014490cd18a Dave Airlie 2021-02-05 986 struct drm_framebuffer *fb;
> 2a3014490cd18a Dave Airlie 2021-02-05 987 struct intel_framebuffer *intel_fb;
> 2a3014490cd18a Dave Airlie 2021-02-05 988
> 2a3014490cd18a Dave Airlie 2021-02-05 989 if (!plane->get_hw_state(plane, &pipe))
> 2a3014490cd18a Dave Airlie 2021-02-05 990 return;
> 2a3014490cd18a Dave Airlie 2021-02-05 991
> 2a3014490cd18a Dave Airlie 2021-02-05 992 drm_WARN_ON(dev, pipe != crtc->pipe);
> 2a3014490cd18a Dave Airlie 2021-02-05 993
> 2a3014490cd18a Dave Airlie 2021-02-05 994 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
> 2a3014490cd18a Dave Airlie 2021-02-05 995 if (!intel_fb) {
> 2a3014490cd18a Dave Airlie 2021-02-05 996 drm_dbg_kms(&dev_priv->drm, "failed to alloc fb\n");
> 2a3014490cd18a Dave Airlie 2021-02-05 997 return;
> 2a3014490cd18a Dave Airlie 2021-02-05 998 }
> 2a3014490cd18a Dave Airlie 2021-02-05 999
> 2a3014490cd18a Dave Airlie 2021-02-05 1000 fb = &intel_fb->base;
> 2a3014490cd18a Dave Airlie 2021-02-05 1001
> 2a3014490cd18a Dave Airlie 2021-02-05 1002 fb->dev = dev;
> 2a3014490cd18a Dave Airlie 2021-02-05 1003
> 2a3014490cd18a Dave Airlie 2021-02-05 1004 val = intel_de_read(dev_priv, DSPCNTR(i9xx_plane));
> 2a3014490cd18a Dave Airlie 2021-02-05 1005
> 005e95377249cb Matt Roper 2021-03-19 1006 if (DISPLAY_VER(dev_priv) >= 4) {
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1007 if (val & DISP_TILED) {
> 2a3014490cd18a Dave Airlie 2021-02-05 1008 plane_config->tiling = I915_TILING_X;
> 2a3014490cd18a Dave Airlie 2021-02-05 1009 fb->modifier = I915_FORMAT_MOD_X_TILED;
> 2a3014490cd18a Dave Airlie 2021-02-05 1010 }
> 2a3014490cd18a Dave Airlie 2021-02-05 1011
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1012 if (val & DISP_ROTATE_180)
> 2a3014490cd18a Dave Airlie 2021-02-05 1013 plane_config->rotation = DRM_MODE_ROTATE_180;
> 2a3014490cd18a Dave Airlie 2021-02-05 1014 }
> 2a3014490cd18a Dave Airlie 2021-02-05 1015
> 2a3014490cd18a Dave Airlie 2021-02-05 1016 if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B &&
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1017 val & DISP_MIRROR)
> 2a3014490cd18a Dave Airlie 2021-02-05 1018 plane_config->rotation |= DRM_MODE_REFLECT_X;
> 2a3014490cd18a Dave Airlie 2021-02-05 1019
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1020 pixel_format = val & DISP_FORMAT_MASK;
> 2a3014490cd18a Dave Airlie 2021-02-05 1021 fourcc = i9xx_format_to_fourcc(pixel_format);
> 2a3014490cd18a Dave Airlie 2021-02-05 1022 fb->format = drm_format_info(fourcc);
> 2a3014490cd18a Dave Airlie 2021-02-05 1023
> 2a3014490cd18a Dave Airlie 2021-02-05 1024 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
> 2a3014490cd18a Dave Airlie 2021-02-05 1025 offset = intel_de_read(dev_priv, DSPOFFSET(i9xx_plane));
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1026 base = intel_de_read(dev_priv, DSPSURF(i9xx_plane)) & DISP_ADDR_MASK;
> 005e95377249cb Matt Roper 2021-03-19 1027 } else if (DISPLAY_VER(dev_priv) >= 4) {
> 2a3014490cd18a Dave Airlie 2021-02-05 1028 if (plane_config->tiling)
> 2a3014490cd18a Dave Airlie 2021-02-05 1029 offset = intel_de_read(dev_priv,
> 2a3014490cd18a Dave Airlie 2021-02-05 1030 DSPTILEOFF(i9xx_plane));
> 2a3014490cd18a Dave Airlie 2021-02-05 1031 else
> 2a3014490cd18a Dave Airlie 2021-02-05 1032 offset = intel_de_read(dev_priv,
> 2a3014490cd18a Dave Airlie 2021-02-05 1033 DSPLINOFF(i9xx_plane));
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1034 base = intel_de_read(dev_priv, DSPSURF(i9xx_plane)) & DISP_ADDR_MASK;
> 2a3014490cd18a Dave Airlie 2021-02-05 1035 } else {
> 2a3014490cd18a Dave Airlie 2021-02-05 1036 base = intel_de_read(dev_priv, DSPADDR(i9xx_plane));
>
> offset not initialized on this path.
>
> 2a3014490cd18a Dave Airlie 2021-02-05 1037 }
> 2a3014490cd18a Dave Airlie 2021-02-05 1038 plane_config->base = base;
> 2a3014490cd18a Dave Airlie 2021-02-05 1039
> 40c3d9e9221e23 Jani Nikula 2023-05-26 @1040 drm_WARN_ON(&dev_priv->drm, offset != 0);
--
Jani Nikula, Intel Open Source Graphics Center
WARNING: multiple messages have this Message-ID (diff)
From: Jani Nikula <jani.nikula@intel.com>
To: Dan Carpenter <dan.carpenter@linaro.org>,
oe-kbuild@lists.linux.dev, intel-gfx@lists.freedesktop.org
Cc: lkp@intel.com, oe-kbuild-all@lists.linux.dev
Subject: Re: [Intel-gfx] [PATCH 01/15] drm/i915/plane: warn on non-zero plane offset
Date: Mon, 29 May 2023 13:04:41 +0300 [thread overview]
Message-ID: <87zg5nh2rq.fsf@intel.com> (raw)
In-Reply-To: <67cd1180-7ffb-46f6-ab30-717219a654fe@kili.mountain>
On Mon, 29 May 2023, Dan Carpenter <dan.carpenter@linaro.org> wrote:
> Hi Jani,
>
> kernel test robot noticed the following build warnings:
Thanks, v2 already on the list:
https://patchwork.freedesktop.org/patch/msgid/20230526172218.1597394-1-jani.nikula@intel.com
>
> url: https://github.com/intel-lab-lkp/linux/commits/Jani-Nikula/drm-i915-plane-warn-on-non-zero-plane-offset/20230527-003951
> base: git://anongit.freedesktop.org/drm/drm-tip drm-tip
> patch link: https://lore.kernel.org/r/0988d237e56c56568f035053da8e2e2308a17d3a.1685119007.git.jani.nikula%40intel.com
> patch subject: [Intel-gfx] [PATCH 01/15] drm/i915/plane: warn on non-zero plane offset
> config: x86_64-randconfig-m031-20230526 (https://download.01.org/0day-ci/archive/20230528/202305280453.8yzCMS2i-lkp@intel.com/config)
> compiler: gcc-11 (Debian 11.3.0-12) 11.3.0
>
> If you fix the issue, kindly add following tag where applicable
> | Reported-by: kernel test robot <lkp@intel.com>
> | Reported-by: Dan Carpenter <error27@gmail.com>
> | Closes: https://lore.kernel.org/r/202305280453.8yzCMS2i-lkp@intel.com/
>
> smatch warnings:
> drivers/gpu/drm/i915/display/i9xx_plane.c:1040 i9xx_get_initial_plane_config() error: uninitialized symbol 'offset'.
>
> vim +/offset +1040 drivers/gpu/drm/i915/display/i9xx_plane.c
>
> 2a3014490cd18a Dave Airlie 2021-02-05 974 void
> 2a3014490cd18a Dave Airlie 2021-02-05 975 i9xx_get_initial_plane_config(struct intel_crtc *crtc,
> 2a3014490cd18a Dave Airlie 2021-02-05 976 struct intel_initial_plane_config *plane_config)
> 2a3014490cd18a Dave Airlie 2021-02-05 977 {
> 2a3014490cd18a Dave Airlie 2021-02-05 978 struct drm_device *dev = crtc->base.dev;
> 2a3014490cd18a Dave Airlie 2021-02-05 979 struct drm_i915_private *dev_priv = to_i915(dev);
> 2a3014490cd18a Dave Airlie 2021-02-05 980 struct intel_plane *plane = to_intel_plane(crtc->base.primary);
> 2a3014490cd18a Dave Airlie 2021-02-05 981 enum i9xx_plane_id i9xx_plane = plane->i9xx_plane;
> 2a3014490cd18a Dave Airlie 2021-02-05 982 enum pipe pipe;
> 2a3014490cd18a Dave Airlie 2021-02-05 983 u32 val, base, offset;
> 2a3014490cd18a Dave Airlie 2021-02-05 984 int fourcc, pixel_format;
> 2a3014490cd18a Dave Airlie 2021-02-05 985 unsigned int aligned_height;
> 2a3014490cd18a Dave Airlie 2021-02-05 986 struct drm_framebuffer *fb;
> 2a3014490cd18a Dave Airlie 2021-02-05 987 struct intel_framebuffer *intel_fb;
> 2a3014490cd18a Dave Airlie 2021-02-05 988
> 2a3014490cd18a Dave Airlie 2021-02-05 989 if (!plane->get_hw_state(plane, &pipe))
> 2a3014490cd18a Dave Airlie 2021-02-05 990 return;
> 2a3014490cd18a Dave Airlie 2021-02-05 991
> 2a3014490cd18a Dave Airlie 2021-02-05 992 drm_WARN_ON(dev, pipe != crtc->pipe);
> 2a3014490cd18a Dave Airlie 2021-02-05 993
> 2a3014490cd18a Dave Airlie 2021-02-05 994 intel_fb = kzalloc(sizeof(*intel_fb), GFP_KERNEL);
> 2a3014490cd18a Dave Airlie 2021-02-05 995 if (!intel_fb) {
> 2a3014490cd18a Dave Airlie 2021-02-05 996 drm_dbg_kms(&dev_priv->drm, "failed to alloc fb\n");
> 2a3014490cd18a Dave Airlie 2021-02-05 997 return;
> 2a3014490cd18a Dave Airlie 2021-02-05 998 }
> 2a3014490cd18a Dave Airlie 2021-02-05 999
> 2a3014490cd18a Dave Airlie 2021-02-05 1000 fb = &intel_fb->base;
> 2a3014490cd18a Dave Airlie 2021-02-05 1001
> 2a3014490cd18a Dave Airlie 2021-02-05 1002 fb->dev = dev;
> 2a3014490cd18a Dave Airlie 2021-02-05 1003
> 2a3014490cd18a Dave Airlie 2021-02-05 1004 val = intel_de_read(dev_priv, DSPCNTR(i9xx_plane));
> 2a3014490cd18a Dave Airlie 2021-02-05 1005
> 005e95377249cb Matt Roper 2021-03-19 1006 if (DISPLAY_VER(dev_priv) >= 4) {
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1007 if (val & DISP_TILED) {
> 2a3014490cd18a Dave Airlie 2021-02-05 1008 plane_config->tiling = I915_TILING_X;
> 2a3014490cd18a Dave Airlie 2021-02-05 1009 fb->modifier = I915_FORMAT_MOD_X_TILED;
> 2a3014490cd18a Dave Airlie 2021-02-05 1010 }
> 2a3014490cd18a Dave Airlie 2021-02-05 1011
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1012 if (val & DISP_ROTATE_180)
> 2a3014490cd18a Dave Airlie 2021-02-05 1013 plane_config->rotation = DRM_MODE_ROTATE_180;
> 2a3014490cd18a Dave Airlie 2021-02-05 1014 }
> 2a3014490cd18a Dave Airlie 2021-02-05 1015
> 2a3014490cd18a Dave Airlie 2021-02-05 1016 if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B &&
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1017 val & DISP_MIRROR)
> 2a3014490cd18a Dave Airlie 2021-02-05 1018 plane_config->rotation |= DRM_MODE_REFLECT_X;
> 2a3014490cd18a Dave Airlie 2021-02-05 1019
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1020 pixel_format = val & DISP_FORMAT_MASK;
> 2a3014490cd18a Dave Airlie 2021-02-05 1021 fourcc = i9xx_format_to_fourcc(pixel_format);
> 2a3014490cd18a Dave Airlie 2021-02-05 1022 fb->format = drm_format_info(fourcc);
> 2a3014490cd18a Dave Airlie 2021-02-05 1023
> 2a3014490cd18a Dave Airlie 2021-02-05 1024 if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv)) {
> 2a3014490cd18a Dave Airlie 2021-02-05 1025 offset = intel_de_read(dev_priv, DSPOFFSET(i9xx_plane));
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1026 base = intel_de_read(dev_priv, DSPSURF(i9xx_plane)) & DISP_ADDR_MASK;
> 005e95377249cb Matt Roper 2021-03-19 1027 } else if (DISPLAY_VER(dev_priv) >= 4) {
> 2a3014490cd18a Dave Airlie 2021-02-05 1028 if (plane_config->tiling)
> 2a3014490cd18a Dave Airlie 2021-02-05 1029 offset = intel_de_read(dev_priv,
> 2a3014490cd18a Dave Airlie 2021-02-05 1030 DSPTILEOFF(i9xx_plane));
> 2a3014490cd18a Dave Airlie 2021-02-05 1031 else
> 2a3014490cd18a Dave Airlie 2021-02-05 1032 offset = intel_de_read(dev_priv,
> 2a3014490cd18a Dave Airlie 2021-02-05 1033 DSPLINOFF(i9xx_plane));
> 428cb15d5b0031 Ville Syrjälä 2022-01-21 1034 base = intel_de_read(dev_priv, DSPSURF(i9xx_plane)) & DISP_ADDR_MASK;
> 2a3014490cd18a Dave Airlie 2021-02-05 1035 } else {
> 2a3014490cd18a Dave Airlie 2021-02-05 1036 base = intel_de_read(dev_priv, DSPADDR(i9xx_plane));
>
> offset not initialized on this path.
>
> 2a3014490cd18a Dave Airlie 2021-02-05 1037 }
> 2a3014490cd18a Dave Airlie 2021-02-05 1038 plane_config->base = base;
> 2a3014490cd18a Dave Airlie 2021-02-05 1039
> 40c3d9e9221e23 Jani Nikula 2023-05-26 @1040 drm_WARN_ON(&dev_priv->drm, offset != 0);
--
Jani Nikula, Intel Open Source Graphics Center
next prev parent reply other threads:[~2023-05-29 10:04 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-26 16:37 [Intel-gfx] [PATCH 00/15] drm/i915: re-enable -Wunused-but-set-variable Jani Nikula
2023-05-26 16:37 ` [Intel-gfx] [PATCH 01/15] drm/i915/plane: warn on non-zero plane offset Jani Nikula
2023-05-26 16:49 ` Ville Syrjälä
2023-05-26 17:22 ` Jani Nikula
2023-05-26 17:22 ` [Intel-gfx] [PATCH v2] " Jani Nikula
2023-05-27 0:27 ` [Intel-gfx] [PATCH 01/15] " kernel test robot
2023-05-27 0:27 ` kernel test robot
2023-05-27 1:50 ` kernel test robot
2023-05-27 1:50 ` kernel test robot
2023-05-29 9:24 ` Dan Carpenter
2023-05-29 9:24 ` Dan Carpenter
2023-05-29 10:04 ` Jani Nikula [this message]
2023-05-29 10:04 ` Jani Nikula
2023-05-26 16:37 ` [Intel-gfx] [PATCH 02/15] drm/i915/ddi: drop unused but set variable intel_dp Jani Nikula
2023-05-26 16:37 ` [Intel-gfx] [PATCH 03/15] drm/i915/dsi: drop unused but set variable data Jani Nikula
2023-05-26 16:37 ` [Intel-gfx] [PATCH 04/15] drm/i915/dsi: drop unused but set variable vbp Jani Nikula
2023-05-26 16:37 ` [Intel-gfx] [PATCH 05/15] drm/i915/dpll: drop unused but set variables bestn and bestm1 Jani Nikula
2023-05-26 16:37 ` [Intel-gfx] [PATCH 06/15] drm/i915/fb: drop unused but set variable cpp Jani Nikula
2023-05-26 16:38 ` [Intel-gfx] [PATCH 07/15] drm/i915/irq: drop unused but set variable tmp Jani Nikula
2023-05-26 16:38 ` [Intel-gfx] [PATCH 08/15] drm/i915/gt/uc: drop unused but set variable sseu Jani Nikula
2023-05-26 17:51 ` Andi Shyti
2023-05-26 16:38 ` [Intel-gfx] [PATCH 09/15] drm/i915/gem: drop unused but set variable unpinned Jani Nikula
2023-05-26 17:35 ` Andi Shyti
2023-05-26 16:38 ` [Intel-gfx] [PATCH 10/15] drm/i915/gem: annotate maybe unused but set variable c Jani Nikula
2023-05-26 17:50 ` Andi Shyti
2023-05-26 16:38 ` [Intel-gfx] [PATCH 11/15] drm/i915/selftest: annotate maybe unused but set variable unused Jani Nikula
2023-05-26 16:38 ` [Intel-gfx] [PATCH 12/15] drm/i915: annotate maybe unused but set intel_plane_state variables Jani Nikula
2023-05-26 16:38 ` [Intel-gfx] [PATCH 13/15] drm/i915: annotate maybe unused but set intel_crtc_state variables Jani Nikula
2023-05-26 16:38 ` [Intel-gfx] [PATCH 14/15] drm/i915/gvt: annotate maybe unused gma_bottom variables Jani Nikula
2023-05-29 14:36 ` Wang, Zhi A
2023-05-26 16:38 ` [Intel-gfx] [PATCH 15/15] drm/i915: re-enable -Wunused-but-set-variable Jani Nikula
2023-05-26 19:14 ` [Intel-gfx] ✗ Fi.CI.SPARSE: warning for drm/i915: re-enable -Wunused-but-set-variable (rev2) Patchwork
2023-05-26 19:30 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2023-05-26 23:21 ` [Intel-gfx] ✗ Fi.CI.SPARSE: warning for drm/i915: re-enable -Wunused-but-set-variable (rev3) Patchwork
2023-05-26 23:38 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork
2023-05-29 9:11 ` [Intel-gfx] ✗ Fi.CI.SPARSE: warning for drm/i915: re-enable -Wunused-but-set-variable (rev4) Patchwork
2023-05-29 9:25 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2023-05-29 14:24 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork
2023-06-07 9:35 ` [Intel-gfx] [PATCH 00/15] drm/i915: re-enable -Wunused-but-set-variable Hogander, Jouni
2023-06-07 10:37 ` Jani Nikula
2023-06-08 9:05 ` Jani Nikula
-- strict thread matches above, loose matches on Subject: below --
2023-05-27 20:21 [Intel-gfx] [PATCH 01/15] drm/i915/plane: warn on non-zero plane offset kernel test robot
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