linux-kernel - Re: [PATCH v2] usb: typec: tcpm: Export partner Source Capabilities

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Date:   Sun, 14 Feb 2021 12:39:06 +0800
From:   kernel test robot <lkp@...el.com>
To:     Kyle Tso <kyletso@...gle.com>, linux@...ck-us.net,
        heikki.krogerus@...ux.intel.com, gregkh@...uxfoundation.org
Cc:     kbuild-all@...ts.01.org, badhri@...gle.com,
        linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
        Kyle Tso <kyletso@...gle.com>
Subject: Re: [PATCH v2] usb: typec: tcpm: Export partner Source Capabilities

Hi Kyle,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on usb/usb-testing]
[also build test ERROR on v5.11-rc7 next-20210212]
[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]

url:    https://github.com/0day-ci/linux/commits/Kyle-Tso/usb-typec-tcpm-Export-partner-Source-Capabilities/20210214-113553
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
config: i386-randconfig-m021-20210214 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0
reproduce (this is a W=1 build):
        # https://github.com/0day-ci/linux/commit/a80af7a2f4fa112b43e7b2b262729a8e1b28c132
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Kyle-Tso/usb-typec-tcpm-Export-partner-Source-Capabilities/20210214-113553
        git checkout a80af7a2f4fa112b43e7b2b262729a8e1b28c132
        # save the attached .config to linux build tree
        make W=1 ARCH=i386 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   drivers/usb/typec/tcpm/tcpm.c: In function 'tcpm_get_partner_src_caps':
>> drivers/usb/typec/tcpm/tcpm.c:5762:11: error: implicit declaration of function 'tcpm_copy_pdos' [-Werror=implicit-function-declaration]
    5762 |  nr_pdo = tcpm_copy_pdos(*src_pdo, port->source_caps,
         |           ^~~~~~~~~~~~~~
   At top level:
   drivers/usb/typec/tcpm/tcpm.c:2106:39: warning: 'tcpm_altmode_ops' defined but not used [-Wunused-const-variable=]
    2106 | static const struct typec_altmode_ops tcpm_altmode_ops = {
         |                                       ^~~~~~~~~~~~~~~~
   cc1: some warnings being treated as errors


vim +/tcpm_copy_pdos +5762 drivers/usb/typec/tcpm/tcpm.c

  5741	
  5742	/*
  5743	 * Don't call this function in interrupt context. Caller needs to free the
  5744	 * memory by calling tcpm_put_partner_src_caps.
  5745	 */
  5746	int tcpm_get_partner_src_caps(struct tcpm_port *port, u32 **src_pdo)
  5747	{
  5748		unsigned int nr_pdo;
  5749	
  5750		mutex_lock(&port->lock);
  5751		if (port->nr_source_caps == 0) {
  5752			mutex_unlock(&port->lock);
  5753			return -ENODATA;
  5754		}
  5755	
  5756		*src_pdo = kcalloc(port->nr_source_caps, sizeof(u32), GFP_KERNEL);
  5757		if (!src_pdo) {
  5758			mutex_unlock(&port->lock);
  5759			return -ENOMEM;
  5760		}
  5761	
> 5762		nr_pdo = tcpm_copy_pdos(*src_pdo, port->source_caps,
  5763					port->nr_source_caps);
  5764		mutex_unlock(&port->lock);
  5765		return nr_pdo;
  5766	}
  5767	EXPORT_SYMBOL_GPL(tcpm_get_partner_src_caps);
  5768	

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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