From: Dan Carpenter <dan.carpenter@oracle.com>
To: kbuild@lists.01.org,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
linux-serial@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: lkp@intel.com, kbuild-all@lists.01.org,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Jiri Slaby <jirislaby@kernel.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Subject: Re: [PATCH v1 1/4] serial: 8250_pci: Refactor the loop in pci_ite887x_init()
Date: Wed, 14 Jul 2021 11:07:51 +0300 [thread overview]
Message-ID: <202107140052.28NaY2ZC-lkp@intel.com> (raw)
In-Reply-To: <20210713104026.58560-1-andriy.shevchenko@linux.intel.com>
Hi Andy,
url: https://github.com/0day-ci/linux/commits/Andy-Shevchenko/serial-8250_pci-Refactor-the-loop-in-pci_ite887x_init/20210713-184225
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git tty-testing
config: x86_64-randconfig-m001-20210713 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-22) 9.3.0
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
smatch warnings:
drivers/tty/serial/8250/8250_pci.c:927 pci_ite887x_init() error: buffer overflow 'inta_addr' 7 <= 7 (assuming for loop doesn't break)
vim +927 drivers/tty/serial/8250/8250_pci.c
97f2398f0f6a89 drivers/tty/serial/8250/8250_pci.c Andy Shevchenko 2021-07-13 901 static const short inta_addr[] = { 0x2a0, 0x2c0, 0x220, 0x240, 0x1e0, 0x200, 0x280, };
f79abb828e1d85 drivers/serial/8250_pci.c Ralf Baechle 2007-08-30 902 static int pci_ite887x_init(struct pci_dev *dev)
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 903 {
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 904 int ret, i, type;
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 905 struct resource *iobase = NULL;
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 906 u32 miscr, uartbar, ioport;
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 907
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 908 /* search for the base-ioport */
97f2398f0f6a89 drivers/tty/serial/8250/8250_pci.c Andy Shevchenko 2021-07-13 909 for (i = 0; i < ARRAY_SIZE(inta_addr); i++) {
^^^^^^^^^^^^^^^^^^^^^^^^^
97f2398f0f6a89 drivers/tty/serial/8250/8250_pci.c Andy Shevchenko 2021-07-13 910 iobase = request_region(inta_addr[i], ITE_887x_IOSIZE, "ite887x");
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 911 if (iobase != NULL) {
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 912 /* write POSIO0R - speed | size | ioport */
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 913 pci_write_config_dword(dev, ITE_887x_POSIO0,
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 914 ITE_887x_POSIO_ENABLE | ITE_887x_POSIO_SPEED |
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 915 ITE_887x_POSIO_IOSIZE_32 | inta_addr[i]);
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 916 /* write INTCBAR - ioport */
97f2398f0f6a89 drivers/tty/serial/8250/8250_pci.c Andy Shevchenko 2021-07-13 917 pci_write_config_dword(dev, ITE_887x_INTCBAR, inta_addr[i]);
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 918 ret = inb(inta_addr[i]);
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 919 if (ret != 0xff) {
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 920 /* ioport connected */
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 921 break;
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 922 }
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 923 release_region(iobase->start, ITE_887x_IOSIZE);
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 924 }
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 925 }
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 926
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 @927 if (!inta_addr[i]) {
Should this be changed to if (i == ARRAY_SIZE(inta_addr)) {?
af8c5b8debb046 drivers/tty/serial/8250/8250_pci.c Greg Kroah-Hartman 2013-09-28 928 dev_err(&dev->dev, "ite887x: could not find iobase\n");
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 929 return -ENODEV;
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 930 }
84f8c6fc0e3b6e drivers/serial/8250_pci.c Niels de Vos 2007-08-22 931
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
next prev parent reply other threads:[~2021-07-14 8:08 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-13 10:40 [PATCH v1 1/4] serial: 8250_pci: Refactor the loop in pci_ite887x_init() Andy Shevchenko
2021-07-13 10:40 ` [PATCH v1 2/4] serial: 8250_pci: Get rid of redundant 'else' keyword Andy Shevchenko
2021-07-13 10:40 ` [PATCH v1 3/4] serial: 8250_pci: Always try MSI/MSI-X Andy Shevchenko
2021-07-14 6:54 ` Jiri Slaby
2021-07-14 7:58 ` Jiri Slaby
2021-07-14 9:31 ` Andy Shevchenko
2021-07-14 9:15 ` Andy Shevchenko
2021-07-14 16:56 ` rwright
2021-07-14 12:49 ` [EXT] " Ralf Ramsauer
2021-07-14 13:35 ` Andy Shevchenko
2021-07-14 16:49 ` Ralf Ramsauer
2021-07-16 13:07 ` Ralf Ramsauer
2021-07-16 15:01 ` Andy Shevchenko
2021-07-16 15:27 ` Ralf Ramsauer
2021-07-16 17:27 ` Andy Shevchenko
2021-07-17 12:44 ` Ralf Ramsauer
2021-07-13 10:40 ` [PATCH v1 4/4] serial: 8250_pci: Replace dev_*() by pci_*() macros Andy Shevchenko
2021-07-13 21:05 ` Joe Perches
2021-07-14 6:57 ` [PATCH v1 1/4] serial: 8250_pci: Refactor the loop in pci_ite887x_init() Jiri Slaby
2021-07-14 12:37 ` Andy Shevchenko
2021-07-14 8:07 ` Dan Carpenter [this message]
2021-07-14 10:44 ` Joe Perches
2021-07-14 12:36 ` Andy Shevchenko
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=202107140052.28NaY2ZC-lkp@intel.com \
--to=dan.carpenter@oracle.com \
--cc=andriy.shevchenko@linux.intel.com \
--cc=gregkh@linuxfoundation.org \
--cc=jirislaby@kernel.org \
--cc=kbuild-all@lists.01.org \
--cc=kbuild@lists.01.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-serial@vger.kernel.org \
--cc=lkp@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).