linux-kernel - Re: [PATCH] mmc: dw_mmc: Use pre_request & post_request

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Message-ID: <202512100224.drEVwdNL-lkp@intel.com>
Date: Wed, 10 Dec 2025 02:57:34 +0800
From: kernel test robot <lkp@...el.com>
To: "ping.gao" <ping.gao@...sung.com>, jh80.chung@...sung.com,
	ulf.hansson@...aro.org, linux-mmc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
	"ping.gao" <ping.gao@...sung.com>
Subject: Re: [PATCH] mmc: dw_mmc: Use pre_request & post_request_end helper

Hi ping.gao,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on ulf-hansson-mmc-mirror/next v6.18 next-20251209]
[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/ping-gao/mmc-dw_mmc-Use-pre_request-post_request_end-helper/20251209-144626
base:   linus/master
patch link:    https://lore.kernel.org/r/20251209064910.3643039-1-ping.gao%40samsung.com
patch subject: [PATCH] mmc: dw_mmc: Use pre_request & post_request_end helper
config: riscv-defconfig (https://download.01.org/0day-ci/archive/20251210/202512100224.drEVwdNL-lkp@intel.com/config)
compiler: clang version 22.0.0git (https://github.com/llvm/llvm-project 6ec8c4351cfc1d0627d1633b02ea787bd29c77d8)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20251210/202512100224.drEVwdNL-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@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202512100224.drEVwdNL-lkp@intel.com/

All errors (new ones prefixed by >>):

>> drivers/mmc/host/dw_mmc.c:1902:49: error: no member named 'drv_dat' in 'struct dw_mci'
    1902 |         const struct dw_mci_drv_data *drv_data = host->drv_dat
         |                                                  ~~~~  ^
>> drivers/mmc/host/dw_mmc.c:1904:2: error: expected expression
    1904 |         WARN_ON(host->cmd || host->data);
         |         ^
   include/asm-generic/bug.h:109:29: note: expanded from macro 'WARN_ON'
     109 | #define WARN_ON(condition) ({                                           \
         |                             ^
   2 errors generated.


vim +1902 drivers/mmc/host/dw_mmc.c

  1895	
  1896	static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq)
  1897		__releases(&host->lock)
  1898		__acquires(&host->lock)
  1899	{
  1900		struct dw_mci_slot *slot;
  1901		struct mmc_host	*prev_mmc = host->slot->mmc;
> 1902		const struct dw_mci_drv_data *drv_data = host->drv_dat
  1903	
> 1904		WARN_ON(host->cmd || host->data);
  1905	
  1906		host->slot->mrq = NULL;
  1907		host->mrq = NULL;
  1908		if (!list_empty(&host->queue)) {
  1909			slot = list_entry(host->queue.next,
  1910					  struct dw_mci_slot, queue_node);
  1911			list_del(&slot->queue_node);
  1912			dev_vdbg(host->dev, "list not empty: %s is next\n",
  1913				 mmc_hostname(slot->mmc));
  1914			host->state = STATE_SENDING_CMD;
  1915			dw_mci_start_request(host, slot);
  1916		} else {
  1917			dev_vdbg(host->dev, "list empty\n");
  1918	
  1919			if (host->state == STATE_SENDING_CMD11)
  1920				host->state = STATE_WAITING_CMD11_DONE;
  1921			else
  1922				host->state = STATE_IDLE;
  1923		}
  1924	
  1925		spin_unlock(&host->lock);
  1926		mmc_request_done(prev_mmc, mrq);
  1927		if (drv_data && drv_data->post_request_end)
  1928			drv_data->post_request_end(host);
  1929		spin_lock(&host->lock);
  1930	}
  1931	

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki