* [linux-next:master 4341/4499] drivers/gpu/drm/vgem/vgem_drv.c:460:10: warning: shift count >= width of type
@ 2021-05-22 20:04 ` kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-05-22 20:04 UTC (permalink / raw
To: Mel Gorman
Cc: kbuild-all, clang-built-linux, Linux Memory Management List,
Andrew Morton
[-- Attachment #1: Type: text/plain, Size: 5510 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 8dca2cd055ffb78b37f52f0bf0bd20c249619c4d
commit: e972c2511967181d955f74181d74438e26b2e797 [4341/4499] mm/early_ioremap: add prototype for early_memremap_pgprot_adjust
config: x86_64-randconfig-a002-20210523 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project e84a9b9bb3051c35dea993cdad7b3d2575638f85)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=e972c2511967181d955f74181d74438e26b2e797
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout e972c2511967181d955f74181d74438e26b2e797
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from drivers/gpu/drm/vgem/vgem_drv.c:33:
In file included from include/linux/dma-buf.h:16:
In file included from include/linux/dma-buf-map.h:9:
In file included from include/linux/io.h:13:
In file included from arch/x86/include/asm/io.h:44:
In file included from ./arch/x86/include/generated/asm/early_ioremap.h:1:
In file included from include/asm-generic/early_ioremap.h:6:
arch/x86/include/asm/fixmap.h:103:48: error: use of undeclared identifier 'NR_CPUS'
FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_MAX_IDX * NR_CPUS) - 1,
^
>> drivers/gpu/drm/vgem/vgem_drv.c:460:10: warning: shift count >= width of type [-Wshift-count-overflow]
DMA_BIT_MASK(64));
^~~~~~~~~~~~~~~~
include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK'
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
^ ~~~
1 warning and 1 error generated.
vim +460 drivers/gpu/drm/vgem/vgem_drv.c
502e95c6678505 Zach Reizner 2015-03-04 444
502e95c6678505 Zach Reizner 2015-03-04 445 static int __init vgem_init(void)
502e95c6678505 Zach Reizner 2015-03-04 446 {
502e95c6678505 Zach Reizner 2015-03-04 447 int ret;
bcc0ef7f57e51e Daniel Vetter 2020-09-09 448 struct platform_device *pdev;
502e95c6678505 Zach Reizner 2015-03-04 449
bcc0ef7f57e51e Daniel Vetter 2020-09-09 450 pdev = platform_device_register_simple("vgem", -1, NULL, 0);
bcc0ef7f57e51e Daniel Vetter 2020-09-09 451 if (IS_ERR(pdev))
bcc0ef7f57e51e Daniel Vetter 2020-09-09 452 return PTR_ERR(pdev);
e2aff44868ae60 Laura Abbott 2017-05-04 453
bcc0ef7f57e51e Daniel Vetter 2020-09-09 454 if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) {
bcc0ef7f57e51e Daniel Vetter 2020-09-09 455 ret = -ENOMEM;
bcc0ef7f57e51e Daniel Vetter 2020-09-09 456 goto out_unregister;
502e95c6678505 Zach Reizner 2015-03-04 457 }
502e95c6678505 Zach Reizner 2015-03-04 458
bcc0ef7f57e51e Daniel Vetter 2020-09-09 459 dma_coerce_mask_and_coherent(&pdev->dev,
e2aff44868ae60 Laura Abbott 2017-05-04 @460 DMA_BIT_MASK(64));
bcc0ef7f57e51e Daniel Vetter 2020-09-09 461
bcc0ef7f57e51e Daniel Vetter 2020-09-09 462 vgem_device = devm_drm_dev_alloc(&pdev->dev, &vgem_driver,
bcc0ef7f57e51e Daniel Vetter 2020-09-09 463 struct vgem_device, drm);
bcc0ef7f57e51e Daniel Vetter 2020-09-09 464 if (IS_ERR(vgem_device)) {
bcc0ef7f57e51e Daniel Vetter 2020-09-09 465 ret = PTR_ERR(vgem_device);
bcc0ef7f57e51e Daniel Vetter 2020-09-09 466 goto out_devres;
bcc0ef7f57e51e Daniel Vetter 2020-09-09 467 }
bcc0ef7f57e51e Daniel Vetter 2020-09-09 468 vgem_device->platform = pdev;
e2aff44868ae60 Laura Abbott 2017-05-04 469
315f0242aa2b1e Chris Wilson 2017-05-08 470 /* Final step: expose the device/driver to userspace */
315f0242aa2b1e Chris Wilson 2017-05-08 471 ret = drm_dev_register(&vgem_device->drm, 0);
502e95c6678505 Zach Reizner 2015-03-04 472 if (ret)
bcc0ef7f57e51e Daniel Vetter 2020-09-09 473 goto out_devres;
502e95c6678505 Zach Reizner 2015-03-04 474
502e95c6678505 Zach Reizner 2015-03-04 475 return 0;
502e95c6678505 Zach Reizner 2015-03-04 476
bcc0ef7f57e51e Daniel Vetter 2020-09-09 477 out_devres:
bcc0ef7f57e51e Daniel Vetter 2020-09-09 478 devres_release_group(&pdev->dev, NULL);
d5c04dff24870e Deepak Sharma 2018-10-23 479 out_unregister:
bcc0ef7f57e51e Daniel Vetter 2020-09-09 480 platform_device_unregister(pdev);
502e95c6678505 Zach Reizner 2015-03-04 481 return ret;
502e95c6678505 Zach Reizner 2015-03-04 482 }
502e95c6678505 Zach Reizner 2015-03-04 483
:::::: The code at line 460 was first introduced by commit
:::::: e2aff44868ae60eccae806d3751077155675c2a4 drm/vgem: Add a dummy platform device
:::::: TO: Laura Abbott <labbott@redhat.com>
:::::: CC: Daniel Vetter <daniel.vetter@ffwll.ch>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 32537 bytes --]
^ permalink raw reply [flat|nested] 2+ messages in thread
* [linux-next:master 4341/4499] drivers/gpu/drm/vgem/vgem_drv.c:460:10: warning: shift count >= width of type
@ 2021-05-22 20:04 ` kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2021-05-22 20:04 UTC (permalink / raw
To: kbuild-all
[-- Attachment #1: Type: text/plain, Size: 5605 bytes --]
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: 8dca2cd055ffb78b37f52f0bf0bd20c249619c4d
commit: e972c2511967181d955f74181d74438e26b2e797 [4341/4499] mm/early_ioremap: add prototype for early_memremap_pgprot_adjust
config: x86_64-randconfig-a002-20210523 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project e84a9b9bb3051c35dea993cdad7b3d2575638f85)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# install x86_64 cross compiling tool for clang build
# apt-get install binutils-x86-64-linux-gnu
# https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=e972c2511967181d955f74181d74438e26b2e797
git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
git fetch --no-tags linux-next master
git checkout e972c2511967181d955f74181d74438e26b2e797
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
All warnings (new ones prefixed by >>):
In file included from drivers/gpu/drm/vgem/vgem_drv.c:33:
In file included from include/linux/dma-buf.h:16:
In file included from include/linux/dma-buf-map.h:9:
In file included from include/linux/io.h:13:
In file included from arch/x86/include/asm/io.h:44:
In file included from ./arch/x86/include/generated/asm/early_ioremap.h:1:
In file included from include/asm-generic/early_ioremap.h:6:
arch/x86/include/asm/fixmap.h:103:48: error: use of undeclared identifier 'NR_CPUS'
FIX_KMAP_END = FIX_KMAP_BEGIN + (KM_MAX_IDX * NR_CPUS) - 1,
^
>> drivers/gpu/drm/vgem/vgem_drv.c:460:10: warning: shift count >= width of type [-Wshift-count-overflow]
DMA_BIT_MASK(64));
^~~~~~~~~~~~~~~~
include/linux/dma-mapping.h:76:54: note: expanded from macro 'DMA_BIT_MASK'
#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
^ ~~~
1 warning and 1 error generated.
vim +460 drivers/gpu/drm/vgem/vgem_drv.c
502e95c6678505 Zach Reizner 2015-03-04 444
502e95c6678505 Zach Reizner 2015-03-04 445 static int __init vgem_init(void)
502e95c6678505 Zach Reizner 2015-03-04 446 {
502e95c6678505 Zach Reizner 2015-03-04 447 int ret;
bcc0ef7f57e51e Daniel Vetter 2020-09-09 448 struct platform_device *pdev;
502e95c6678505 Zach Reizner 2015-03-04 449
bcc0ef7f57e51e Daniel Vetter 2020-09-09 450 pdev = platform_device_register_simple("vgem", -1, NULL, 0);
bcc0ef7f57e51e Daniel Vetter 2020-09-09 451 if (IS_ERR(pdev))
bcc0ef7f57e51e Daniel Vetter 2020-09-09 452 return PTR_ERR(pdev);
e2aff44868ae60 Laura Abbott 2017-05-04 453
bcc0ef7f57e51e Daniel Vetter 2020-09-09 454 if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) {
bcc0ef7f57e51e Daniel Vetter 2020-09-09 455 ret = -ENOMEM;
bcc0ef7f57e51e Daniel Vetter 2020-09-09 456 goto out_unregister;
502e95c6678505 Zach Reizner 2015-03-04 457 }
502e95c6678505 Zach Reizner 2015-03-04 458
bcc0ef7f57e51e Daniel Vetter 2020-09-09 459 dma_coerce_mask_and_coherent(&pdev->dev,
e2aff44868ae60 Laura Abbott 2017-05-04 @460 DMA_BIT_MASK(64));
bcc0ef7f57e51e Daniel Vetter 2020-09-09 461
bcc0ef7f57e51e Daniel Vetter 2020-09-09 462 vgem_device = devm_drm_dev_alloc(&pdev->dev, &vgem_driver,
bcc0ef7f57e51e Daniel Vetter 2020-09-09 463 struct vgem_device, drm);
bcc0ef7f57e51e Daniel Vetter 2020-09-09 464 if (IS_ERR(vgem_device)) {
bcc0ef7f57e51e Daniel Vetter 2020-09-09 465 ret = PTR_ERR(vgem_device);
bcc0ef7f57e51e Daniel Vetter 2020-09-09 466 goto out_devres;
bcc0ef7f57e51e Daniel Vetter 2020-09-09 467 }
bcc0ef7f57e51e Daniel Vetter 2020-09-09 468 vgem_device->platform = pdev;
e2aff44868ae60 Laura Abbott 2017-05-04 469
315f0242aa2b1e Chris Wilson 2017-05-08 470 /* Final step: expose the device/driver to userspace */
315f0242aa2b1e Chris Wilson 2017-05-08 471 ret = drm_dev_register(&vgem_device->drm, 0);
502e95c6678505 Zach Reizner 2015-03-04 472 if (ret)
bcc0ef7f57e51e Daniel Vetter 2020-09-09 473 goto out_devres;
502e95c6678505 Zach Reizner 2015-03-04 474
502e95c6678505 Zach Reizner 2015-03-04 475 return 0;
502e95c6678505 Zach Reizner 2015-03-04 476
bcc0ef7f57e51e Daniel Vetter 2020-09-09 477 out_devres:
bcc0ef7f57e51e Daniel Vetter 2020-09-09 478 devres_release_group(&pdev->dev, NULL);
d5c04dff24870e Deepak Sharma 2018-10-23 479 out_unregister:
bcc0ef7f57e51e Daniel Vetter 2020-09-09 480 platform_device_unregister(pdev);
502e95c6678505 Zach Reizner 2015-03-04 481 return ret;
502e95c6678505 Zach Reizner 2015-03-04 482 }
502e95c6678505 Zach Reizner 2015-03-04 483
:::::: The code at line 460 was first introduced by commit
:::::: e2aff44868ae60eccae806d3751077155675c2a4 drm/vgem: Add a dummy platform device
:::::: TO: Laura Abbott <labbott@redhat.com>
:::::: CC: Daniel Vetter <daniel.vetter@ffwll.ch>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
[-- Attachment #2: config.gz --]
[-- Type: application/gzip, Size: 32537 bytes --]
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2021-05-22 20:04 [linux-next:master 4341/4499] drivers/gpu/drm/vgem/vgem_drv.c:460:10: warning: shift count >= width of type kernel test robot
2021-05-22 20:04 ` kernel test robot
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