From: kernel test robot <lkp@intel.com>
To: oe-kbuild@lists.linux.dev
Cc: lkp@intel.com, Dan Carpenter <error27@gmail.com>
Subject: [melver:ctx-analysis/dev 8/36] drivers/tty/serial/fsl_linflexuart.c:657 linflex_console_write() error: uninitialized symbol 'flags'.
Date: Thu, 18 Dec 2025 20:31:34 +0800 [thread overview]
Message-ID: <202512182003.gapcsWar-lkp@intel.com> (raw)
BCC: lkp@intel.com
CC: oe-kbuild-all@lists.linux.dev
TO: elver@google.com
tree: https://git.kernel.org/pub/scm/linux/kernel/git/melver/linux.git ctx-analysis/dev
head: 5950df0508b3b151758cb1d1d965713d93200c47
commit: 5f1642c5f2075d5dc42bfc1f5978ce33356417fa [8/36] locking/rwlock, spinlock: Support Clang's context analysis
:::::: branch date: 21 hours ago
:::::: commit date: 22 hours ago
config: nios2-randconfig-r073-20251218 (https://download.01.org/0day-ci/archive/20251218/202512182003.gapcsWar-lkp@intel.com/config)
compiler: nios2-linux-gcc (GCC) 8.5.0
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@intel.com>
| Reported-by: Dan Carpenter <error27@gmail.com>
| Closes: https://lore.kernel.org/r/202512182003.gapcsWar-lkp@intel.com/
New smatch warnings:
drivers/tty/serial/fsl_linflexuart.c:657 linflex_console_write() error: uninitialized symbol 'flags'.
drivers/tty/serial/digicolor-usart.c:408 digicolor_uart_console_write() error: uninitialized symbol 'flags'.
drivers/tty/serial/uartlite.c:523 ulite_console_write() error: uninitialized symbol 'flags'.
drivers/tty/serial/fsl_lpuart.c:1336 lpuart_timer_func() error: uninitialized symbol 'flags'.
Old smatch warnings:
drivers/tty/serial/fsl_linflexuart.c:613 linflex_earlycon_putchar() error: we previously assumed 'earlycon_buf.content' could be null (see line 601)
drivers/tty/serial/fsl_linflexuart.c:746 linflex_console_setup() error: we previously assumed 'earlycon_port' could be null (see line 720)
vim +/flags +657 drivers/tty/serial/fsl_linflexuart.c
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 639
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 640 static void
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 641 linflex_console_write(struct console *co, const char *s, unsigned int count)
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 642 {
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 643 struct uart_port *sport = linflex_ports[co->index];
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 644 unsigned long flags;
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 645 int locked = 1;
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 646
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 647 if (sport->sysrq)
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 648 locked = 0;
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 649 else if (oops_in_progress)
7c6725ffd58133 Thomas Gleixner 2023-09-14 650 locked = uart_port_trylock_irqsave(sport, &flags);
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 651 else
7c6725ffd58133 Thomas Gleixner 2023-09-14 652 uart_port_lock_irqsave(sport, &flags);
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 653
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 654 linflex_string_write(sport, s, count);
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 655
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 656 if (locked)
7c6725ffd58133 Thomas Gleixner 2023-09-14 @657 uart_port_unlock_irqrestore(sport, flags);
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 658 }
09864c1cdf5c53 Stefan-gabriel Mirea 2019-08-09 659
:::::: The code at line 657 was first introduced by commit
:::::: 7c6725ffd58133536b372bdb3559e7da0c89e492 serial: linflexuart: Use port lock wrappers
:::::: TO: Thomas Gleixner <tglx@linutronix.de>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
reply other threads:[~2025-12-18 12:32 UTC|newest]
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