[tip:irq/drivers 6/22] drivers/media/platform/mediatek/vpu/mtk_vpu.c:299:9: warning: comparison of different enumeration types ('enum ipi_id' and 'enum ipi_message_type')

[tip:irq/drivers 6/22] drivers/media/platform/mediatek/vpu/mtk_vpu.c:299:9: warning: comparison of different enumeration types ('enum ipi_id' and 'enum ipi_message_type')

[kernel test robot]

Hi GUO,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git irq/drivers
head:   0c65a1331928d0207c385f03fb5eba0cfecce0e6
commit: 1ae91dc397eb1dbc0f4fc6b96f2481cbc02fe0f9 [6/22] riscv: smp: Move enum ipi_message_type to asm/smp.h
config: riscv-allyesconfig (https://download.01.org/0day-ci/archive/20260908/202609080837.vE9lfq1K-lkp@intel.com/config)
compiler: clang version 24.0.0git (https://github.com/llvm/llvm-project 2362eeb5f75560740146975e9eabe84c6bd25a0d)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260908/202609080837.vE9lfq1K-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/202609080837.vE9lfq1K-lkp@intel.com/

All warnings (new ones prefixed by >>):

   In file included from drivers/media/platform/mediatek/vpu/mtk_vpu.c:20:
   drivers/media/platform/mediatek/vpu/mtk_vpu.h:63:2: error: redefinition of enumerator 'IPI_MAX'
      63 |         IPI_MAX,
         |         ^
   arch/riscv/include/asm/smp.h:27:2: note: previous definition is here
      27 |         IPI_MAX
         |         ^
>> drivers/media/platform/mediatek/vpu/mtk_vpu.c:299:9: warning: comparison of different enumeration types ('enum ipi_id' and 'enum ipi_message_type') [-Wenum-compare]
     299 |         if (id < IPI_MAX && handler) {
         |             ~~ ^ ~~~~~~~
   drivers/media/platform/mediatek/vpu/mtk_vpu.c:322:31: warning: comparison of different enumeration types ('enum ipi_id' and 'enum ipi_message_type') [-Wenum-compare]
     322 |         if (id <= IPI_VPU_INIT || id >= IPI_MAX ||
         |                                   ~~ ^  ~~~~~~~
   2 warnings and 1 error generated.


vim +299 drivers/media/platform/mediatek/vpu/mtk_vpu.c

040d31ccf2bd87 drivers/media/platform/mtk-vpu/mtk_vpu.c Irui Wang      2020-10-29  286  
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  287  int vpu_ipi_register(struct platform_device *pdev,
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  288  		     enum ipi_id id, ipi_handler_t handler,
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  289  		     const char *name, void *priv)
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  290  {
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  291  	struct mtk_vpu *vpu = platform_get_drvdata(pdev);
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  292  	struct vpu_ipi_desc *ipi_desc;
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  293  
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  294  	if (!vpu) {
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  295  		dev_err(&pdev->dev, "vpu device in not ready\n");
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  296  		return -EPROBE_DEFER;
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  297  	}
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  298  
c4abb192caca96 drivers/media/platform/mtk-vpu/mtk_vpu.c Hans Verkuil   2019-11-03 @299  	if (id < IPI_MAX && handler) {
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  300  		ipi_desc = vpu->ipi_desc;
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  301  		ipi_desc[id].name = name;
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  302  		ipi_desc[id].handler = handler;
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  303  		ipi_desc[id].priv = priv;
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  304  		return 0;
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  305  	}
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  306  
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  307  	dev_err(&pdev->dev, "register vpu ipi id %d with invalid arguments\n",
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  308  		id);
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  309  	return -EINVAL;
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  310  }
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  311  EXPORT_SYMBOL_GPL(vpu_ipi_register);
3003a180ef6b94 drivers/media/platform/mtk-vpu/mtk_vpu.c Andrew-CT Chen 2016-05-03  312  

:::::: The code at line 299 was first introduced by commit
:::::: c4abb192caca96a53c2e833d25b1f7f12b454bf4 media: mtk-vpu: fix two smatch warnings

:::::: TO: Hans Verkuil <hverkuil-cisco@xs4all.nl>
:::::: CC: Mauro Carvalho Chehab <mchehab@kernel.org>

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https://github.com/intel/lkp-tests/wiki