From: kernel test robot <lkp@intel.com>
To: kbuild@lists.01.org
Subject: drivers/tty/serial/samsung_tty.c:2512 samsung_early_busyuart_fifo() warn: this loop depends on readl() succeeding
Date: Fri, 11 Dec 2020 01:15:11 +0800 [thread overview]
Message-ID: <202012110101.SKOJMOCU-lkp@intel.com> (raw)
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CC: kbuild-all(a)lists.01.org
CC: linux-kernel(a)vger.kernel.org
TO: "Greg Kroah-Hartman" <gregkh@linuxfoundation.org>
CC: Krzysztof Kozlowski <krzk@kernel.org>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: a2f5ea9e314ba6778f885c805c921e9362ec0420
commit: b87671f17c3e94e80b802904d80b6ed213ac70ae tty: serial: samsung: allow driver to be built by anyone
date: 12 months ago
:::::: branch date: 18 hours ago
:::::: commit date: 12 months ago
config: openrisc-randconfig-m031-20201209 (attached as .config)
compiler: or1k-linux-gcc (GCC) 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/samsung_tty.c:2512 samsung_early_busyuart_fifo() warn: this loop depends on readl() succeeding
vim +2512 drivers/tty/serial/samsung_tty.c
b94ba0328d3b36 drivers/tty/serial/samsung.c Tomasz Figa 2015-01-23 2507
b94ba0328d3b36 drivers/tty/serial/samsung.c Tomasz Figa 2015-01-23 2508 static void samsung_early_busyuart_fifo(struct uart_port *port)
b94ba0328d3b36 drivers/tty/serial/samsung.c Tomasz Figa 2015-01-23 2509 {
b94ba0328d3b36 drivers/tty/serial/samsung.c Tomasz Figa 2015-01-23 2510 struct samsung_early_console_data *data = port->private_data;
b94ba0328d3b36 drivers/tty/serial/samsung.c Tomasz Figa 2015-01-23 2511
b94ba0328d3b36 drivers/tty/serial/samsung.c Tomasz Figa 2015-01-23 @2512 while (readl(port->membase + S3C2410_UFSTAT) & data->txfull_mask)
b94ba0328d3b36 drivers/tty/serial/samsung.c Tomasz Figa 2015-01-23 2513 ;
b94ba0328d3b36 drivers/tty/serial/samsung.c Tomasz Figa 2015-01-23 2514 }
b94ba0328d3b36 drivers/tty/serial/samsung.c Tomasz Figa 2015-01-23 2515
:::::: The code at line 2512 was first introduced by commit
:::::: b94ba0328d3b36ff95f5074c0e9b44f90dc56bb5 serial: samsung: Add support for early console
:::::: TO: Tomasz Figa <t.figa@samsung.com>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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next reply other threads:[~2020-12-10 17:15 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-10 17:15 kernel test robot [this message]
-- strict thread matches above, loose matches on Subject: below --
2020-10-19 5:18 drivers/tty/serial/samsung_tty.c:2512 samsung_early_busyuart_fifo() warn: this loop depends on readl() succeeding kernel test robot
2020-09-12 20:28 kernel test robot
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