* [freescale-fslc:5.4-2.1.x-imx 6777/15820] drivers/gpu/drm/imx/cdn-mhdp-imx8qm.c:525:5: warning: no previous prototype for 'cdns_mhdp_firmware_write_section'
@ 2021-01-10 6:57 kernel test robot
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From: kernel test robot @ 2021-01-10 6:57 UTC (permalink / raw)
To: kbuild-all
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tree: https://github.com/Freescale/linux-fslc 5.4-2.1.x-imx
head: 3fd28d5dc75d360340eee1b6b858c29acad0cbb8
commit: 0eef22c5bf0959fcda31c140953152274586b9b6 [6777/15820] LF-794 gpu: cdn: imx8qm: Add firmware loading support
config: m68k-allmodconfig (attached as .config)
compiler: m68k-linux-gcc (GCC) 9.3.0
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
# https://github.com/Freescale/linux-fslc/commit/0eef22c5bf0959fcda31c140953152274586b9b6
git remote add freescale-fslc https://github.com/Freescale/linux-fslc
git fetch --no-tags freescale-fslc 5.4-2.1.x-imx
git checkout 0eef22c5bf0959fcda31c140953152274586b9b6
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k
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 arch/m68k/include/asm/io_mm.h:25,
from arch/m68k/include/asm/io.h:8,
from include/linux/scatterlist.h:9,
from include/linux/dma-mapping.h:11,
from include/drm/drmP.h:37,
from drivers/gpu/drm/imx/cdn-mhdp-imx8qm.c:13:
arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsb':
arch/m68k/include/asm/raw_io.h:83:7: warning: variable '__w' set but not used [-Wunused-but-set-variable]
83 | ({u8 __w, __v = (b); u32 _addr = ((u32) (addr)); \
| ^~~
arch/m68k/include/asm/raw_io.h:430:3: note: in expansion of macro 'rom_out_8'
430 | rom_out_8(port, *buf++);
| ^~~~~~~~~
arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsw':
arch/m68k/include/asm/raw_io.h:86:8: warning: variable '__w' set but not used [-Wunused-but-set-variable]
86 | ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \
| ^~~
arch/m68k/include/asm/raw_io.h:448:3: note: in expansion of macro 'rom_out_be16'
448 | rom_out_be16(port, *buf++);
| ^~~~~~~~~~~~
arch/m68k/include/asm/raw_io.h: In function 'raw_rom_outsw_swapw':
arch/m68k/include/asm/raw_io.h:90:8: warning: variable '__w' set but not used [-Wunused-but-set-variable]
90 | ({u16 __w, __v = (w); u32 _addr = ((u32) (addr)); \
| ^~~
arch/m68k/include/asm/raw_io.h:466:3: note: in expansion of macro 'rom_out_le16'
466 | rom_out_le16(port, *buf++);
| ^~~~~~~~~~~~
In file included from include/linux/ioport.h:13,
from include/linux/device.h:15,
from include/linux/firmware/imx/ipc.h:11,
from include/linux/firmware/imx/sci.h:13,
from drivers/gpu/drm/imx/cdn-mhdp-imx8qm.c:9:
include/linux/scatterlist.h: In function 'sg_set_buf':
arch/m68k/include/asm/page_mm.h:169:49: warning: ordered comparison of pointer with null pointer [-Wextra]
169 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
include/linux/compiler.h:78:42: note: in definition of macro 'unlikely'
78 | # define unlikely(x) __builtin_expect(!!(x), 0)
| ^
include/linux/scatterlist.h:143:2: note: in expansion of macro 'BUG_ON'
143 | BUG_ON(!virt_addr_valid(buf));
| ^~~~~~
include/linux/scatterlist.h:143:10: note: in expansion of macro 'virt_addr_valid'
143 | BUG_ON(!virt_addr_valid(buf));
| ^~~~~~~~~~~~~~~
In file included from arch/m68k/include/asm/bug.h:32,
from include/linux/bug.h:5,
from include/linux/thread_info.h:12,
from include/asm-generic/preempt.h:5,
from ./arch/m68k/include/generated/asm/preempt.h:1,
from include/linux/preempt.h:78,
from arch/m68k/include/asm/irqflags.h:6,
from include/linux/irqflags.h:16,
from arch/m68k/include/asm/atomic.h:6,
from include/linux/atomic.h:7,
from include/linux/mutex.h:18,
from include/linux/kernfs.h:12,
from include/linux/sysfs.h:16,
from include/linux/kobject.h:20,
from include/linux/device.h:16,
from include/linux/firmware/imx/ipc.h:11,
from include/linux/firmware/imx/sci.h:13,
from drivers/gpu/drm/imx/cdn-mhdp-imx8qm.c:9:
include/linux/dma-mapping.h: In function 'dma_map_resource':
arch/m68k/include/asm/page_mm.h:169:49: warning: ordered comparison of pointer with null pointer [-Wextra]
169 | #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && (void *)(kaddr) < high_memory)
| ^~
include/asm-generic/bug.h:139:27: note: in definition of macro 'WARN_ON_ONCE'
139 | int __ret_warn_once = !!(condition); \
| ^~~~~~~~~
arch/m68k/include/asm/page_mm.h:170:25: note: in expansion of macro 'virt_addr_valid'
170 | #define pfn_valid(pfn) virt_addr_valid(pfn_to_virt(pfn))
| ^~~~~~~~~~~~~~~
include/linux/dma-mapping.h:355:19: note: in expansion of macro 'pfn_valid'
355 | if (WARN_ON_ONCE(pfn_valid(PHYS_PFN(phys_addr))))
| ^~~~~~~~~
drivers/gpu/drm/imx/cdn-mhdp-imx8qm.c: At top level:
drivers/gpu/drm/imx/cdn-mhdp-imx8qm.c:127:5: warning: no previous prototype for 'imx8qm_clocks_init' [-Wmissing-prototypes]
127 | int imx8qm_clocks_init(struct imx_mhdp_device *imx_mhdp)
| ^~~~~~~~~~~~~~~~~~
>> drivers/gpu/drm/imx/cdn-mhdp-imx8qm.c:525:5: warning: no previous prototype for 'cdns_mhdp_firmware_write_section' [-Wmissing-prototypes]
525 | int cdns_mhdp_firmware_write_section(struct imx_mhdp_device *imx_mhdp,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Kconfig warnings: (for reference only)
WARNING: unmet direct dependencies detected for NEED_MULTIPLE_NODES
Depends on DISCONTIGMEM || NUMA
Selected by
- SINGLE_MEMORY_CHUNK && MMU
vim +/cdns_mhdp_firmware_write_section +525 drivers/gpu/drm/imx/cdn-mhdp-imx8qm.c
524
> 525 int cdns_mhdp_firmware_write_section(struct imx_mhdp_device *imx_mhdp,
526 const u8 *data, int size, int addr)
527 {
528 int i;
529
530 for (i = 0; i < size; i += 4) {
531 u32 val = (unsigned int)data[i] << 0 |
532 (unsigned int)data[i + 1] << 8 |
533 (unsigned int)data[i + 2] << 16 |
534 (unsigned int)data[i + 3] << 24;
535 cdns_mhdp_bus_write(val, &imx_mhdp->mhdp, addr + i);
536 }
537
538 return 0;
539 }
540
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2021-01-10 6:57 [freescale-fslc:5.4-2.1.x-imx 6777/15820] drivers/gpu/drm/imx/cdn-mhdp-imx8qm.c:525:5: warning: no previous prototype for 'cdns_mhdp_firmware_write_section' kernel test robot
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