linux-kernel - drivers/mailbox/zynqmp-ipi-mailbox.c:112: warning: Excess struct member 'ipi_mboxes' description in 'zynqmp_ipi

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Message-ID: <202312150705.glrQ4ypv-lkp@intel.com>
Date: Fri, 15 Dec 2023 07:25:31 +0800
From: kernel test robot <lkp@...el.com>
To: Kees Cook <keescook@...omium.org>
Cc: oe-kbuild-all@...ts.linux.dev, linux-kernel@...r.kernel.org,
	Justin Stitt <justinstitt@...gle.com>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>
Subject: drivers/mailbox/zynqmp-ipi-mailbox.c:112: warning: Excess struct
 member 'ipi_mboxes' description in 'zynqmp_ipi_pdata'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   c7402612e2e61b76177f22e6e7f705adcbecc6fe
commit: c5225cd073c65a6d7e8e311ec0114792a671982a mailbox: zynqmp: Annotate struct zynqmp_ipi_pdata with __counted_by
date:   10 weeks ago
config: arm64-defconfig (https://download.01.org/0day-ci/archive/20231215/202312150705.glrQ4ypv-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 13.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20231215/202312150705.glrQ4ypv-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/202312150705.glrQ4ypv-lkp@intel.com/

All warnings (new ones prefixed by >>):

   drivers/mailbox/zynqmp-ipi-mailbox.c:92: warning: Excess struct member 'irq' description in 'zynqmp_ipi_mbox'
>> drivers/mailbox/zynqmp-ipi-mailbox.c:112: warning: Excess struct member 'ipi_mboxes' description in 'zynqmp_ipi_pdata'


vim +112 drivers/mailbox/zynqmp-ipi-mailbox.c

4981b82ba2ff87 Wendy Liang 2019-02-21   93  
4981b82ba2ff87 Wendy Liang 2019-02-21   94  /**
4981b82ba2ff87 Wendy Liang 2019-02-21   95   * struct zynqmp_ipi_pdata - Description of z ZynqMP IPI agent platform data.
4981b82ba2ff87 Wendy Liang 2019-02-21   96   *
4981b82ba2ff87 Wendy Liang 2019-02-21   97   * @dev:                  device pointer corresponding to the Xilinx ZynqMP
4981b82ba2ff87 Wendy Liang 2019-02-21   98   *                        IPI agent
4981b82ba2ff87 Wendy Liang 2019-02-21   99   * @irq:                  IPI agent interrupt ID
4981b82ba2ff87 Wendy Liang 2019-02-21  100   * @method:               IPI SMC or HVC is going to be used
4981b82ba2ff87 Wendy Liang 2019-02-21  101   * @local_id:             local IPI agent ID
4981b82ba2ff87 Wendy Liang 2019-02-21  102   * @num_mboxes:           number of mailboxes of this IPI agent
4981b82ba2ff87 Wendy Liang 2019-02-21  103   * @ipi_mboxes:           IPI mailboxes of this IPI agent
4981b82ba2ff87 Wendy Liang 2019-02-21  104   */
4981b82ba2ff87 Wendy Liang 2019-02-21  105  struct zynqmp_ipi_pdata {
4981b82ba2ff87 Wendy Liang 2019-02-21  106  	struct device *dev;
4981b82ba2ff87 Wendy Liang 2019-02-21  107  	int irq;
4981b82ba2ff87 Wendy Liang 2019-02-21  108  	unsigned int method;
4981b82ba2ff87 Wendy Liang 2019-02-21  109  	u32 local_id;
4981b82ba2ff87 Wendy Liang 2019-02-21  110  	int num_mboxes;
c5225cd073c65a Kees Cook   2023-09-22  111  	struct zynqmp_ipi_mbox ipi_mboxes[] __counted_by(num_mboxes);
4981b82ba2ff87 Wendy Liang 2019-02-21 @112  };
4981b82ba2ff87 Wendy Liang 2019-02-21  113  

:::::: The code at line 112 was first introduced by commit
:::::: 4981b82ba2ff87df6a711fcd7a233c615df5fc79 mailbox: ZynqMP IPI mailbox controller

:::::: TO: Wendy Liang <wendy.liang@...inx.com>
:::::: CC: Jassi Brar <jaswinder.singh@...aro.org>

-- 
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https://github.com/intel/lkp-tests/wiki