linux-kernel - Re: [PATCH 2/2] pci: Update VPD size with correct length

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Message-ID: <201512171957.wE8Hjrn7%fengguang.wu@intel.com>
Date:	Thu, 17 Dec 2015 19:10:17 +0800
From:	kbuild test robot <lkp@...el.com>
To:	Hannes Reinecke <hare@...e.de>
Cc:	kbuild-all@...org, Bjorn Helgaas <bhelgaas@...gle.com>,
	Alexander Duyck <alexander.duyck@...il.com>,
	Michal Kubecek <mkubecek@...e.com>,
	"Shane M. Seymour" <shane.seymour@....com>,
	linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
	Hannes Reinecke <hare@...e.de>,
	Bjorn Helgaas <helgaas@...nel.org>
Subject: Re: [PATCH 2/2] pci: Update VPD size with correct length

Hi Hannes,

[auto build test WARNING on pci/next]
[also build test WARNING on v4.4-rc5 next-20151217]

url:    https://github.com/0day-ci/linux/commits/Hannes-Reinecke/pci-Update-VPD-definitions/20151217-160050
base:   https://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci.git next
reproduce: make htmldocs

All warnings (new ones prefixed by >>):

   lib/crc32.c:148: warning: No description found for parameter 'tab)[256]'
   lib/crc32.c:148: warning: Excess function parameter 'tab' description in 'crc32_le_generic'
   lib/crc32.c:293: warning: No description found for parameter 'tab)[256]'
   lib/crc32.c:293: warning: Excess function parameter 'tab' description in 'crc32_be_generic'
   lib/crc32.c:1: warning: no structured comments found
>> drivers/pci/access.c:486: warning: Excess function parameter 'old_size' description in 'pci_vpd_pci22_size'

vim +486 drivers/pci/access.c

   470	}
   471	
   472	static const struct pci_vpd_ops pci_vpd_f0_ops = {
   473		.read = pci_vpd_f0_read,
   474		.write = pci_vpd_f0_write,
   475		.release = pci_vpd_pci22_release,
   476	};
   477	
   478	/**
   479	 * pci_vpd_size - determine actual size of Vital Product Data
   480	 * @dev:	pci device struct
   481	 * @old_size:	current assumed size, also maximum allowed size
   482	 *
   483	 */
   484	static size_t
   485	pci_vpd_pci22_size(struct pci_dev *dev)
 > 486	{
   487		size_t off = 0;
   488		unsigned char header[1+2];	/* 1 byte tag, 2 bytes length */
   489	
   490		while (off < PCI_VPD_PCI22_SIZE &&
   491		       pci_read_vpd(dev, off, 1, header) == 1) {
   492			unsigned char tag;
   493	
   494			if (header[0] & PCI_VPD_LRDT) {

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