Re: [PATCH V2][1/4] mmc: solve DMA boundary limitation of CQHCI driver
From: kernel test robot
Date: Thu Oct 19 2023 - 09:03:13 EST
Hi Jyan,
kernel test robot noticed the following build warnings:
[auto build test WARNING on linus/master]
[also build test WARNING on v6.6-rc6 next-20231019]
[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/Jyan-Chou/mmc-solve-DMA-boundary-limitation-of-CQHCI-driver/20231018-135532
base: linus/master
patch link: https://lore.kernel.org/r/20231018055326.18256-2-jyanchou%40realtek.com
patch subject: [PATCH V2][1/4] mmc: solve DMA boundary limitation of CQHCI driver
config: x86_64-rhel-8.3-rust (https://download.01.org/0day-ci/archive/20231019/202310192006.ZUfTNe5e-lkp@xxxxxxxxx/config)
compiler: clang version 16.0.4 (https://github.com/llvm/llvm-project.git ae42196bc493ffe877a7e3dff8be32035dea4d07)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231019/202310192006.ZUfTNe5e-lkp@xxxxxxxxx/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@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202310192006.ZUfTNe5e-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
>> drivers/mmc/host/cqhci-core.c:477:6: warning: no previous prototype for function 'cqhci_set_tran_desc' [-Wmissing-prototypes]
void cqhci_set_tran_desc(u8 *desc, dma_addr_t addr, int len, bool end,
^
drivers/mmc/host/cqhci-core.c:477:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
void cqhci_set_tran_desc(u8 *desc, dma_addr_t addr, int len, bool end,
^
static
1 warning generated.
vim +/cqhci_set_tran_desc +477 drivers/mmc/host/cqhci-core.c
476
> 477 void cqhci_set_tran_desc(u8 *desc, dma_addr_t addr, int len, bool end,
478 bool dma64)
479 {
480 __le32 *attr = (__le32 __force *)desc;
481
482 *attr = (CQHCI_VALID(1) |
483 CQHCI_END(end ? 1 : 0) |
484 CQHCI_INT(0) |
485 CQHCI_ACT(0x4) |
486 CQHCI_DAT_LENGTH(len));
487
488 if (dma64) {
489 __le64 *dataddr = (__le64 __force *)(desc + 4);
490
491 dataddr[0] = cpu_to_le64(addr);
492 } else {
493 __le32 *dataddr = (__le32 __force *)(desc + 4);
494
495 dataddr[0] = cpu_to_le32(addr);
496 }
497 }
498 EXPORT_SYMBOL(cqhci_set_tran_desc);
499
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki