Re: [PATCH] CMDQ feature is introduced to eMMC standard in v5.1, which can be used to improve performance.

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Hi Jyan,

kernel test robot noticed the following build warnings:

[auto build test WARNING on linus/master]
[also build test WARNING on v6.4-rc7 next-20230620]
[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]

base:   linus/master
patch link:
patch subject: [PATCH] CMDQ feature is introduced to eMMC standard in v5.1, which can be used to improve performance.
config: mips-allyesconfig (
compiler: mips-linux-gcc (GCC) 12.3.0
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:

All warnings (new ones prefixed by >>):

   In file included from drivers/mmc/host/dw_mmc_cqe.c:39:
>> drivers/mmc/host/dw_mmc_cqe.h:321: warning: "END" redefined
     321 | #define END(x)                          ((x & 1) << 1)
   In file included from arch/mips/include/asm/bitops.h:19,
                    from include/linux/bitops.h:68,
                    from drivers/mmc/host/dw_mmc_cqe.c:9:
   arch/mips/include/asm/asm.h:69: note: this is the location of the previous definition
      69 | #define END(function)                                   \
   drivers/mmc/host/dw_mmc_cqe.c:232:10: error: 'const struct cqhci_host_ops' has no member named 'setup_tran_desc'
     232 |         .setup_tran_desc = dw_mci_cqe_setup_tran_desc,
         |          ^~~~~~~~~~~~~~~
   drivers/mmc/host/dw_mmc_cqe.c:232:28: error: positional initialization of field in 'struct' declared with 'designated_init' attribute [-Werror=designated-init]
     232 |         .setup_tran_desc = dw_mci_cqe_setup_tran_desc,
         |                            ^~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/mmc/host/dw_mmc_cqe.c:232:28: note: (near initialization for 'dw_mci_cqhci_host_ops')
   drivers/mmc/host/dw_mmc_cqe.c:232:28: error: initialization of 'void (*)(struct mmc_host *)' from incompatible pointer type 'void (*)(struct mmc_data *, struct cqhci_host *, u8 *, int)' {aka 'void (*)(struct mmc_data *, struct cqhci_host *, unsigned char *, int)'} [-Werror=incompatible-pointer-types]
   drivers/mmc/host/dw_mmc_cqe.c:232:28: note: (near initialization for 'dw_mci_cqhci_host_ops.pre_enable')
   drivers/mmc/host/dw_mmc_cqe.c: In function 'dw_mci_cqe_read_rsp':
>> drivers/mmc/host/dw_mmc_cqe.c:283:37: warning: variable 'rsp_tmp' set but not used [-Wunused-but-set-variable]
     283 |                                 u32 rsp_tmp[4];
         |                                     ^~~~~~~
   drivers/mmc/host/dw_mmc_cqe.c: In function 'dw_mci_cqe_err_handle':
>> drivers/mmc/host/dw_mmc_cqe.c:766:41: warning: this 'if' clause does not guard... [-Wmisleading-indentation]
     766 |                                         if (err == -DW_MCI_NOT_READY)
         |                                         ^~
   drivers/mmc/host/dw_mmc_cqe.c:769:49: note: ...this statement, but the latter is misleadingly indented as if it were guarded by the 'if'
     769 |                                                 break;
         |                                                 ^~~~~
   In file included from include/linux/debugfs.h:16,
                    from drivers/mmc/host/dw_mmc_cqe.c:12:
   drivers/mmc/host/dw_mmc_cqe.c: At top level:
   drivers/mmc/host/dw_mmc_cqe.c:97:23: warning: 'dw_mci_cqe_req_fops' defined but not used [-Wunused-const-variable=]
      97 | DEFINE_SHOW_ATTRIBUTE(dw_mci_cqe_req);
         |                       ^~~~~~~~~~~~~~
   include/linux/seq_file.h:202:37: note: in definition of macro 'DEFINE_SHOW_ATTRIBUTE'
     202 | static const struct file_operations __name ## _fops = {                 \
         |                                     ^~~~~~
   cc1: some warnings being treated as errors

vim +/END +321 drivers/mmc/host/dw_mmc_cqe.h

   320	#define VALID(x)			((x & 1) << 0)
 > 321	#define END(x)				((x & 1) << 1)
   322	#define INT(x)				((x & 1) << 2)
   323	#define ACT(x)				((x & 0x7) << 3)
   324	#define DAT_LENGTH(x)			((x & 0xFFFF) << 16)

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