Messages in this thread | | | Date | Mon, 22 Feb 2021 03:12:23 +0800 | From | kernel test robot <> | Subject | arch/mips/bmips/dma.c:55:13: warning: no previous prototype for 'dma_to_phys' |
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Hi Christoph,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 55f62bc873477dae2c45bbbc30b86cf3e0982f3b commit: 7bc5c428a660d4d1bc95ba54bf4cb6bccf8c3029 dma-direct: remove __dma_to_phys date: 5 months ago config: mips-randconfig-r013-20210222 (attached as .config) compiler: mipsel-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://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7bc5c428a660d4d1bc95ba54bf4cb6bccf8c3029 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 7bc5c428a660d4d1bc95ba54bf4cb6bccf8c3029 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=mips
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 >>):
arch/mips/bmips/dma.c:43:12: warning: no previous prototype for '__phys_to_dma' [-Wmissing-prototypes] 43 | dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t pa) | ^~~~~~~~~~~~~ >> arch/mips/bmips/dma.c:55:13: warning: no previous prototype for 'dma_to_phys' [-Wmissing-prototypes] 55 | phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr) | ^~~~~~~~~~~ arch/mips/bmips/dma.c:67:6: warning: no previous prototype for 'arch_sync_dma_for_cpu_all' [-Wmissing-prototypes] 67 | void arch_sync_dma_for_cpu_all(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~
vim +/dma_to_phys +55 arch/mips/bmips/dma.c
42 > 43 dma_addr_t __phys_to_dma(struct device *dev, phys_addr_t pa) 44 { 45 struct bmips_dma_range *r; 46 47 for (r = bmips_dma_ranges; r && r->size; r++) { 48 if (pa >= r->child_addr && 49 pa < (r->child_addr + r->size)) 50 return pa - r->child_addr + r->parent_addr; 51 } 52 return pa; 53 } 54 > 55 phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr) 56 { 57 struct bmips_dma_range *r; 58 59 for (r = bmips_dma_ranges; r && r->size; r++) { 60 if (dma_addr >= r->parent_addr && 61 dma_addr < (r->parent_addr + r->size)) 62 return dma_addr - r->parent_addr + r->child_addr; 63 } 64 return dma_addr; 65 } 66
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