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Date: Thu, 6 Jan 2022 15:48:14 +0800
From: kernel test robot <lkp@...el.com>
To: Jiri Slaby <jslaby@...e.cz>
Cc: llvm@...ts.linux.dev, kbuild-all@...ts.01.org,
linux-kernel@...r.kernel.org
Subject: [jirislaby:devel 22/31] drivers/tty/mxser.c:771:34: error: use of
undeclared identifier 'flags'
tree: https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git devel
head: be0ceaad1e9d19def7c3344c8af61e80785f4326
commit: 8ffc6c8c0af9b2365bcd837ea4faed75bcecdaa8 [22/31] mxser: switch to uart_driver
config: i386-randconfig-r021-20220105 (https://download.01.org/0day-ci/archive/20220106/202201061517.idmER6xz-lkp@intel.com/config)
compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d5b6e30ed3acad794dd0aec400e617daffc6cc3d)
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git/commit/?id=8ffc6c8c0af9b2365bcd837ea4faed75bcecdaa8
git remote add jirislaby https://git.kernel.org/pub/scm/linux/kernel/git/jirislaby/linux.git
git fetch --no-tags jirislaby devel
git checkout 8ffc6c8c0af9b2365bcd837ea4faed75bcecdaa8
# save the config file to linux build tree
mkdir build_dir
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/tty/
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>
All errors (new ones prefixed by >>):
>> drivers/tty/mxser.c:771:34: error: use of undeclared identifier 'flags'
spin_lock_irqsave(&uport->lock, flags);
^
>> drivers/tty/mxser.c:771:34: error: use of undeclared identifier 'flags'
drivers/tty/mxser.c:774:40: error: use of undeclared identifier 'flags'
spin_unlock_irqrestore(&uport->lock, flags);
^
drivers/tty/mxser.c:790:40: error: use of undeclared identifier 'flags'
spin_unlock_irqrestore(&uport->lock, flags);
^
drivers/tty/mxser.c:828:39: error: use of undeclared identifier 'flags'
spin_unlock_irqrestore(&uport->lock, flags);
^
>> drivers/tty/mxser.c:878:25: error: use of undeclared identifier 'port'; did you mean 'uport'?
tty_port_free_xmit_buf(port);
^~~~
uport
drivers/tty/mxser.c:852:46: note: 'uport' declared here
static void mxser_shutdown(struct uart_port *uport)
^
6 errors generated.
vim +/flags +771 drivers/tty/mxser.c
ee7e5e66f2d4fa drivers/tty/mxser.c Jiri Slaby 2021-09-22 763
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 764 static int mxser_startup(struct uart_port *uport)
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 765 {
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 766 struct mxser_port *info = to_mport(uport);
373f755a1748c2 drivers/tty/mxser.c Jiri Slaby 2021-12-16 767 int ret;
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 768
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 769 BUG_ON("we use kfifo");
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 770
06ce2597d9cf82 drivers/tty/mxser.c Jiri Slaby 2021-12-10 @771 spin_lock_irqsave(&uport->lock, flags);
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 772
83eaabf7a151de drivers/tty/mxser.c Jiri Slaby 2021-12-10 773 if (!uport->type) {
06ce2597d9cf82 drivers/tty/mxser.c Jiri Slaby 2021-12-10 774 spin_unlock_irqrestore(&uport->lock, flags);
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 775 return -EINVAL;
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 776 }
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 777
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 778 /*
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 779 * Clear the FIFO buffers and disable them
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 780 * (they will be reenabled in mxser_change_speed())
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 781 */
ee7e5e66f2d4fa drivers/tty/mxser.c Jiri Slaby 2021-09-22 782 mxser_disable_and_clear_FIFO(info);
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 783
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 784 /*
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 785 * At this point there's no way the LSR could still be 0xFF;
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 786 * if it is, then bail out, because there's likely no UART
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 787 * here.
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 788 */
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 789 if (inb(uport->iobase + UART_LSR) == 0xff) {
06ce2597d9cf82 drivers/tty/mxser.c Jiri Slaby 2021-12-10 790 spin_unlock_irqrestore(&uport->lock, flags);
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 791 return -ENODEV;
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 792 }
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 793
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 794 /*
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 795 * Clear the interrupt registers.
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 796 */
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 797 (void) inb(uport->iobase + UART_LSR);
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 798 (void) inb(uport->iobase + UART_RX);
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 799 (void) inb(uport->iobase + UART_IIR);
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 800 (void) inb(uport->iobase + UART_MSR);
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 801
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 802 /*
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 803 * Now, initialize the UART
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 804 */
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 805 outb(UART_LCR_WLEN8, uport->iobase + UART_LCR); /* reset DLAB */
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 806 info->MCR = UART_MCR_DTR | UART_MCR_RTS;
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 807 outb(info->MCR, uport->iobase + UART_MCR);
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 808
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 809 /*
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 810 * Finally, enable interrupts
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 811 */
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 812 info->IER = UART_IER_MSI | UART_IER_RLSI | UART_IER_RDI;
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 813
292955a7c011e2 drivers/tty/mxser.c Jiri Slaby 2021-06-18 814 if (info->board->must_hwid)
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 815 info->IER |= MOXA_MUST_IER_EGDAI;
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 816 outb(info->IER, uport->iobase + UART_IER); /* enable interrupts */
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 817
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 818 /*
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 819 * And clear the interrupt registers again for luck.
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 820 */
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 821 (void) inb(uport->iobase + UART_LSR);
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 822 (void) inb(uport->iobase + UART_RX);
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 823 (void) inb(uport->iobase + UART_IIR);
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 824 (void) inb(uport->iobase + UART_MSR);
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 825
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 826 //kfifo_reset(&port->xmit_fifo);
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 827 BUG_ON("kfifo_reset");
06ce2597d9cf82 drivers/tty/mxser.c Jiri Slaby 2021-12-10 828 spin_unlock_irqrestore(&uport->lock, flags);
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 829
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 830 return 0;
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 831 }
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 832
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 833 /*
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 834 * To stop accepting input, we disable the receive line status interrupts, and
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 835 * tell the interrupt driver to stop checking the data ready bit in the line
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 836 * status register.
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 837 */
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 838 static void mxser_stop_rx(struct uart_port *uport)
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 839 {
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 840 struct mxser_port *info = to_mport(uport);
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 841
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 842 info->IER &= ~UART_IER_RLSI;
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 843 if (info->board->must_hwid)
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 844 info->IER &= ~MOXA_MUST_RECV_ISR;
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 845
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 846 outb(info->IER, uport->iobase + UART_IER);
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 847 }
47b722d473824e drivers/tty/mxser.c Jiri Slaby 2021-11-18 848
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 849 /*
6769140d304731 drivers/char/mxser.c Alan Cox 2009-11-30 850 * This routine will shutdown a serial port
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 851 */
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 852 static void mxser_shutdown(struct uart_port *uport)
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 853 {
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 854 struct mxser_port *info = to_mport(uport);
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 855 unsigned long flags;
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 856
06ce2597d9cf82 drivers/tty/mxser.c Jiri Slaby 2021-12-10 857 spin_lock_irqsave(&uport->lock, flags);
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 858
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 859 BUG_ON("we use kfifo");
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 860 info->IER = 0;
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 861 outb(0x00, uport->iobase + UART_IER);
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 862
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 863 /* clear Rx/Tx FIFO's */
ee7e5e66f2d4fa drivers/tty/mxser.c Jiri Slaby 2021-09-22 864 mxser_disable_and_clear_FIFO(info);
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 865
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 866 /* read data port to reset things */
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 867 (void) inb(uport->iobase + UART_RX);
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 868
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 869
292955a7c011e2 drivers/tty/mxser.c Jiri Slaby 2021-06-18 870 if (info->board->must_hwid)
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 871 mxser_must_no_sw_flow_control(uport->iobase);
1c45607ad3eb73 drivers/char/mxser.c Jiri Slaby 2008-02-07 872
06ce2597d9cf82 drivers/tty/mxser.c Jiri Slaby 2021-12-10 873 spin_unlock_irqrestore(&uport->lock, flags);
eca514dff1f0d6 drivers/tty/mxser.c Jiri Slaby 2021-12-15 874
eca514dff1f0d6 drivers/tty/mxser.c Jiri Slaby 2021-12-15 875 /* make sure ISR is not running while we free the buffer */
eca514dff1f0d6 drivers/tty/mxser.c Jiri Slaby 2021-12-15 876 synchronize_irq(info->board->irq);
eca514dff1f0d6 drivers/tty/mxser.c Jiri Slaby 2021-12-15 877
eca514dff1f0d6 drivers/tty/mxser.c Jiri Slaby 2021-12-15 @878 tty_port_free_xmit_buf(port);
^1da177e4c3f41 drivers/char/mxser.c Linus Torvalds 2005-04-16 879 }
8ffc6c8c0af9b2 drivers/tty/mxser.c Jiri Slaby 2021-12-01 880 #ifdef OLD
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 881 static void mxser_flush_buffer(struct tty_struct *tty)
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 882 {
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 883 struct mxser_port *info = tty->driver_data;
06ce2597d9cf82 drivers/tty/mxser.c Jiri Slaby 2021-12-10 884 struct uart_port *uport = &info->uport;
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 885 unsigned long flags;
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 886
06ce2597d9cf82 drivers/tty/mxser.c Jiri Slaby 2021-12-10 887 spin_lock_irqsave(&uport->lock, flags);
eca514dff1f0d6 drivers/tty/mxser.c Jiri Slaby 2021-12-15 888 kfifo_reset(&info->port.xmit_fifo);
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 889
d249e662c3e4a9 drivers/tty/mxser.c Jiri Slaby 2021-09-22 890 outb(info->FCR | UART_FCR_CLEAR_RCVR | UART_FCR_CLEAR_XMIT,
e07871afd5d4cd drivers/tty/mxser.c Jiri Slaby 2021-12-10 891 uport->iobase + UART_FCR);
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 892
06ce2597d9cf82 drivers/tty/mxser.c Jiri Slaby 2021-12-10 893 spin_unlock_irqrestore(&uport->lock, flags);
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 894
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 895 tty_wakeup(tty);
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 896 }
978e595f88a1fb drivers/char/mxser.c Alan Cox 2008-04-30 897
:::::: The code at line 771 was first introduced by commit
:::::: 06ce2597d9cf82d60bb9871edad91d75e53b10cd mxser: use lock from uart_port
:::::: TO: Jiri Slaby <jslaby@...e.cz>
:::::: CC: Jiri Slaby <jslaby@...e.cz>
---
0-DAY CI Kernel Test Service, Intel Corporation
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