Re: [PATCH 2/4] usb: typec: ucsi: ccg: add firmware flashing support

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Hi Heikki,

I love your patch! Perhaps something to improve:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on v5.1-rc4 next-20190410]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url:    https://github.com/0day-ci/linux/commits/Heikki-Krogerus/usb-typec-ucsi-Remaining-changes-for-v5-2/20190410-221455
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
reproduce:
        # apt-get install sparse
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'


sparse warnings: (new ones prefixed by >>)

   drivers/usb/typec/ucsi/ucsi_ccg.c:212:24: sparse: expression using sizeof(void)
   drivers/usb/typec/ucsi/ucsi_ccg.c:212:24: sparse: expression using sizeof(void)
>> drivers/usb/typec/ucsi/ucsi_ccg.c:690:16: sparse: restricted __le16 degrades to integer
   drivers/usb/typec/ucsi/ucsi_ccg.c:698:24: sparse: restricted __le16 degrades to integer
   drivers/usb/typec/ucsi/ucsi_ccg.c:735:26: sparse: restricted __le16 degrades to integer
   drivers/usb/typec/ucsi/ucsi_ccg.c:737:33: sparse: restricted __le16 degrades to integer
   drivers/usb/typec/ucsi/ucsi_ccg.c:777:37: sparse: restricted __le16 degrades to integer

vim +690 drivers/usb/typec/ucsi/ucsi_ccg.c

   680	
   681	static bool ccg_check_vendor_version(struct ucsi_ccg *uc,
   682					     struct version_format *app,
   683					     struct fw_config_table *fw_cfg)
   684	{
   685		struct device *dev = uc->dev;
   686	
   687		/* Check if the fw build is for supported vendors.
   688		 * Add all supported vendors here.
   689		 */
 > 690		if (app->build != (('n' << 8) | 'v')) {
   691			dev_info(dev, "current fw is not from supported vendor\n");
   692			return false;
   693		}
   694	
   695		/* Check if the new fw build is for supported vendors
   696		 * Add all supported vendors here.
   697		 */
   698		if (fw_cfg->app.build != (('n' << 8) | 'v')) {
   699			dev_info(dev, "new fw is not from supported vendor\n");
   700			return false;
   701		}
   702		return true;
   703	}
   704	

---
0-DAY kernel test infrastructure                Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all                   Intel Corporation



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