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Date:   Sun, 14 Feb 2021 14:24:25 +0800
From:   kernel test robot <>
To:     Kyle Tso <>,,,
Cc:,,,,, Kyle Tso <>
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]

base: usb-testing
config: x86_64-randconfig-a013-20210214 (attached as .config)
compiler: clang version 12.0.0 ( c9439ca36342fb6013187d0a69aef92736951476)
reproduce (this is a W=1 build):
        wget -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install x86_64 cross compiling tool for clang build
        # apt-get install binutils-x86-64-linux-gnu
        git remote add linux-review
        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
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 

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

All errors (new ones prefixed by >>):

>> drivers/usb/typec/tcpm/tcpm.c:5762:11: error: implicit declaration of function 'tcpm_copy_pdos' [-Werror,-Wimplicit-function-declaration]
           nr_pdo = tcpm_copy_pdos(*src_pdo, port->source_caps,
   1 error generated.

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

  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;
  5750		mutex_lock(&port->lock);
  5751		if (port->nr_source_caps == 0) {
  5752			mutex_unlock(&port->lock);
  5753			return -ENODATA;
  5754		}
  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		}
> 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);

0-DAY CI Kernel Test Service, Intel Corporation

Download attachment ".config.gz" of type "application/gzip" (32158 bytes)

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