| Message ID | fea7a52924f98b1ac24f4a7e6ba21d7754422430.1704908087.git.jani.nikula@intel.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | drm: enable W=1 warnings by default across the subsystem | expand |
Hi Jani, kernel test robot noticed the following build warnings: [auto build test WARNING on drm-misc/drm-misc-next] [also build test WARNING on drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.7 next-20240111] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Jani-Nikula/drm-nouveau-acr-ga102-remove-unused-but-set-variable/20240111-014206 base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next patch link: https://lore.kernel.org/r/fea7a52924f98b1ac24f4a7e6ba21d7754422430.1704908087.git.jani.nikula%40intel.com patch subject: [PATCH 3/6] drm/amdgpu: prefer snprintf over sprintf config: sparc64-allmodconfig (https://download.01.org/0day-ci/archive/20240112/202401121126.i9VGrvMb-lkp@intel.com/config) compiler: sparc64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240112/202401121126.i9VGrvMb-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 | Reported-by: kernel test robot <lkp@intel.com> | Closes: https://lore.kernel.org/oe-kbuild-all/202401121126.i9VGrvMb-lkp@intel.com/ All warnings (new ones prefixed by >>): drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c: In function 'amdgpu_gfx_kiq_init_ring': >> drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:332:61: warning: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size between 0 and 8 [-Wformat-truncation=] 332 | snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", | ^~ drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:332:50: note: directive argument in the range [0, 2147483647] 332 | snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", | ^~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:332:9: note: 'snprintf' output between 12 and 41 bytes into a destination of size 16 332 | snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 333 | xcc_id, ring->me, ring->pipe, ring->queue); | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +332 drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c 306 307 int amdgpu_gfx_kiq_init_ring(struct amdgpu_device *adev, 308 struct amdgpu_ring *ring, 309 struct amdgpu_irq_src *irq, int xcc_id) 310 { 311 struct amdgpu_kiq *kiq = &adev->gfx.kiq[xcc_id]; 312 int r = 0; 313 314 spin_lock_init(&kiq->ring_lock); 315 316 ring->adev = NULL; 317 ring->ring_obj = NULL; 318 ring->use_doorbell = true; 319 ring->xcc_id = xcc_id; 320 ring->vm_hub = AMDGPU_GFXHUB(xcc_id); 321 ring->doorbell_index = 322 (adev->doorbell_index.kiq + 323 xcc_id * adev->doorbell_index.xcc_doorbell_range) 324 << 1; 325 326 r = amdgpu_gfx_kiq_acquire(adev, ring, xcc_id); 327 if (r) 328 return r; 329 330 ring->eop_gpu_addr = kiq->eop_gpu_addr; 331 ring->no_scheduler = true; > 332 snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", 333 xcc_id, ring->me, ring->pipe, ring->queue); 334 r = amdgpu_ring_init(adev, ring, 1024, irq, AMDGPU_CP_KIQ_IRQ_DRIVER0, 335 AMDGPU_RING_PRIO_DEFAULT, NULL); 336 if (r) 337 dev_warn(adev->dev, "(%d) failed to init kiq ring\n", r); 338 339 return r; 340 } 341
On Fri, 12 Jan 2024, kernel test robot <lkp@intel.com> wrote: > Hi Jani, > > kernel test robot noticed the following build warnings: > > [auto build test WARNING on drm-misc/drm-misc-next] > [also build test WARNING on drm-intel/for-linux-next drm-intel/for-linux-next-fixes drm-tip/drm-tip linus/master v6.7 next-20240111] > [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#_base_tree_information] > > url: https://github.com/intel-lab-lkp/linux/commits/Jani-Nikula/drm-nouveau-acr-ga102-remove-unused-but-set-variable/20240111-014206 > base: git://anongit.freedesktop.org/drm/drm-misc drm-misc-next > patch link: https://lore.kernel.org/r/fea7a52924f98b1ac24f4a7e6ba21d7754422430.1704908087.git.jani.nikula%40intel.com > patch subject: [PATCH 3/6] drm/amdgpu: prefer snprintf over sprintf > config: sparc64-allmodconfig (https://download.01.org/0day-ci/archive/20240112/202401121126.i9VGrvMb-lkp@intel.com/config) > compiler: sparc64-linux-gcc (GCC) 13.2.0 > reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240112/202401121126.i9VGrvMb-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 > | Reported-by: kernel test robot <lkp@intel.com> > | Closes: https://lore.kernel.org/oe-kbuild-all/202401121126.i9VGrvMb-lkp@intel.com/ > > All warnings (new ones prefixed by >>): > > drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c: In function 'amdgpu_gfx_kiq_init_ring': >>> drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:332:61: warning: '%d' directive output may be truncated writing between 1 and 10 bytes into a region of size between 0 and 8 [-Wformat-truncation=] > 332 | snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", > | ^~ > drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:332:50: note: directive argument in the range [0, 2147483647] > 332 | snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", > | ^~~~~~~~~~~~~~~~~ > drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c:332:9: note: 'snprintf' output between 12 and 41 bytes into a destination of size 16 > 332 | snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", > | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > 333 | xcc_id, ring->me, ring->pipe, ring->queue); > | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ As the commit message says, This will trade the W=1 warning -Wformat-overflow to -Wformat-truncation. This lets us enable -Wformat-overflow subsystem wide. BR, Jani. > > > vim +332 drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c > > 306 > 307 int amdgpu_gfx_kiq_init_ring(struct amdgpu_device *adev, > 308 struct amdgpu_ring *ring, > 309 struct amdgpu_irq_src *irq, int xcc_id) > 310 { > 311 struct amdgpu_kiq *kiq = &adev->gfx.kiq[xcc_id]; > 312 int r = 0; > 313 > 314 spin_lock_init(&kiq->ring_lock); > 315 > 316 ring->adev = NULL; > 317 ring->ring_obj = NULL; > 318 ring->use_doorbell = true; > 319 ring->xcc_id = xcc_id; > 320 ring->vm_hub = AMDGPU_GFXHUB(xcc_id); > 321 ring->doorbell_index = > 322 (adev->doorbell_index.kiq + > 323 xcc_id * adev->doorbell_index.xcc_doorbell_range) > 324 << 1; > 325 > 326 r = amdgpu_gfx_kiq_acquire(adev, ring, xcc_id); > 327 if (r) > 328 return r; > 329 > 330 ring->eop_gpu_addr = kiq->eop_gpu_addr; > 331 ring->no_scheduler = true; > > 332 snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", > 333 xcc_id, ring->me, ring->pipe, ring->queue); > 334 r = amdgpu_ring_init(adev, ring, 1024, irq, AMDGPU_CP_KIQ_IRQ_DRIVER0, > 335 AMDGPU_RING_PRIO_DEFAULT, NULL); > 336 if (r) > 337 dev_warn(adev->dev, "(%d) failed to init kiq ring\n", r); > 338 > 339 return r; > 340 } > 341
On Wed, Jan 10, 2024 at 12:39 PM Jani Nikula <jani.nikula@intel.com> wrote: > > This will trade the W=1 warning -Wformat-overflow to > -Wformat-truncation. This lets us enable -Wformat-overflow subsystem > wide. > > Cc: Alex Deucher <alexander.deucher@amd.com> > Cc: Christian König <christian.koenig@amd.com> > Cc: Pan, Xinhui <Xinhui.Pan@amd.com> > Cc: amd-gfx@lists.freedesktop.org > Signed-off-by: Jani Nikula <jani.nikula@intel.com> Acked-by: Alex Deucher <alexander.deucher@amd.com> Feel free to take this via whichever tree makes sense. Alex > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c > index b9674c57c436..82b4b2019fca 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c > @@ -329,7 +329,8 @@ int amdgpu_gfx_kiq_init_ring(struct amdgpu_device *adev, > > ring->eop_gpu_addr = kiq->eop_gpu_addr; > ring->no_scheduler = true; > - sprintf(ring->name, "kiq_%d.%d.%d.%d", xcc_id, ring->me, ring->pipe, ring->queue); > + snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", > + xcc_id, ring->me, ring->pipe, ring->queue); > r = amdgpu_ring_init(adev, ring, 1024, irq, AMDGPU_CP_KIQ_IRQ_DRIVER0, > AMDGPU_RING_PRIO_DEFAULT, NULL); > if (r) > -- > 2.39.2 >
On Fri, 12 Jan 2024, Alex Deucher <alexdeucher@gmail.com> wrote: > On Wed, Jan 10, 2024 at 12:39 PM Jani Nikula <jani.nikula@intel.com> wrote: >> >> This will trade the W=1 warning -Wformat-overflow to >> -Wformat-truncation. This lets us enable -Wformat-overflow subsystem >> wide. >> >> Cc: Alex Deucher <alexander.deucher@amd.com> >> Cc: Christian König <christian.koenig@amd.com> >> Cc: Pan, Xinhui <Xinhui.Pan@amd.com> >> Cc: amd-gfx@lists.freedesktop.org >> Signed-off-by: Jani Nikula <jani.nikula@intel.com> > > Acked-by: Alex Deucher <alexander.deucher@amd.com> > > Feel free to take this via whichever tree makes sense. Thanks, pushed this one patch to drm-misc-next as prep work. BR, Jani. > > Alex > >> --- >> drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 3 ++- >> 1 file changed, 2 insertions(+), 1 deletion(-) >> >> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c >> index b9674c57c436..82b4b2019fca 100644 >> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c >> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c >> @@ -329,7 +329,8 @@ int amdgpu_gfx_kiq_init_ring(struct amdgpu_device *adev, >> >> ring->eop_gpu_addr = kiq->eop_gpu_addr; >> ring->no_scheduler = true; >> - sprintf(ring->name, "kiq_%d.%d.%d.%d", xcc_id, ring->me, ring->pipe, ring->queue); >> + snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", >> + xcc_id, ring->me, ring->pipe, ring->queue); >> r = amdgpu_ring_init(adev, ring, 1024, irq, AMDGPU_CP_KIQ_IRQ_DRIVER0, >> AMDGPU_RING_PRIO_DEFAULT, NULL); >> if (r) >> -- >> 2.39.2 >>
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c index b9674c57c436..82b4b2019fca 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c @@ -329,7 +329,8 @@ int amdgpu_gfx_kiq_init_ring(struct amdgpu_device *adev, ring->eop_gpu_addr = kiq->eop_gpu_addr; ring->no_scheduler = true; - sprintf(ring->name, "kiq_%d.%d.%d.%d", xcc_id, ring->me, ring->pipe, ring->queue); + snprintf(ring->name, sizeof(ring->name), "kiq_%d.%d.%d.%d", + xcc_id, ring->me, ring->pipe, ring->queue); r = amdgpu_ring_init(adev, ring, 1024, irq, AMDGPU_CP_KIQ_IRQ_DRIVER0, AMDGPU_RING_PRIO_DEFAULT, NULL); if (r)
This will trade the W=1 warning -Wformat-overflow to -Wformat-truncation. This lets us enable -Wformat-overflow subsystem wide. Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Christian König <christian.koenig@amd.com> Cc: Pan, Xinhui <Xinhui.Pan@amd.com> Cc: amd-gfx@lists.freedesktop.org Signed-off-by: Jani Nikula <jani.nikula@intel.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)