[PATCH] nouveau/firmware: using dma non-coherent interfaces for fw loading.

[kernel test robot]

Hi Dave,

kernel test robot noticed the following build errors:

[auto build test ERROR on drm-misc/drm-misc-next]
[also build test ERROR on linus/master v6.9 next-20240513]
[cannot apply to drm-tip/drm-tip]
[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/Dave-Airlie/nouveau-firmware-using-dma-non-coherent-interfaces-for-fw-loading/20240513-144435
base:   git://anongit.freedesktop.org/drm/drm-misc drm-misc-next
patch link:    https://lore.kernel.org/r/20240513064350.1050994-1-airlied%40gmail.com
patch subject: [PATCH] nouveau/firmware: using dma non-coherent interfaces for fw loading.
config: parisc-defconfig (https://download.01.org/0day-ci/archive/20240513/202405131724.YtoCSRmy-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240513/202405131724.YtoCSRmy-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 at intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202405131724.YtoCSRmy-lkp@intel.com/

All errors (new ones prefixed by >>):

   drivers/gpu/drm/nouveau/nvkm/core/firmware.c: In function 'nvkm_firmware_ctor':
>> drivers/gpu/drm/nouveau/nvkm/core/firmware.c:242:54: error: passing argument 3 of 'dma_alloc_noncoherent' from incompatible pointer type [-Werror=incompatible-pointer-types]
     242 |                                                 len, &fw->phys,
         |                                                      ^~~~~~~~~
         |                                                      |
         |                                                      u64 * {aka long long unsigned int *}
   In file included from include/linux/pci.h:2693,
                    from drivers/gpu/drm/nouveau/include/nvif/os.h:8,
                    from drivers/gpu/drm/nouveau/include/nvkm/core/os.h:4,
                    from drivers/gpu/drm/nouveau/include/nvkm/core/oclass.h:3,
                    from drivers/gpu/drm/nouveau/include/nvkm/core/device.h:4,
                    from drivers/gpu/drm/nouveau/nvkm/core/firmware.c:22:
   include/linux/dma-mapping.h:321:29: note: expected 'dma_addr_t *' {aka 'unsigned int *'} but argument is of type 'u64 *' {aka 'long long unsigned int *'}
     321 |                 dma_addr_t *dma_handle, enum dma_data_direction dir, gfp_t gfp)
         |                 ~~~~~~~~~~~~^~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/dma_alloc_noncoherent +242 drivers/gpu/drm/nouveau/nvkm/core/firmware.c

   224	
   225	int
   226	nvkm_firmware_ctor(const struct nvkm_firmware_func *func, const char *name,
   227			   struct nvkm_device *device, const void *src, int len, struct nvkm_firmware *fw)
   228	{
   229		fw->func = func;
   230		fw->name = name;
   231		fw->device = device;
   232		fw->len = len;
   233	
   234		switch (fw->func->type) {
   235		case NVKM_FIRMWARE_IMG_RAM:
   236			fw->img = kmemdup(src, fw->len, GFP_KERNEL);
   237			break;
   238		case NVKM_FIRMWARE_IMG_DMA: {
   239			len = ALIGN(fw->len, PAGE_SIZE);
   240	
   241			fw->img = dma_alloc_noncoherent(fw->device->dev,
 > 242							len, &fw->phys,

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