* [bcain:bcain/qemu_boot 34/87] drivers/tty/serial/serial_core.c:1939:1: warning: 'optnone' attribute directive ignored
@ 2026-08-23 12:30 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2026-08-23 12:30 UTC (permalink / raw)
To: Brian Cain; +Cc: oe-kbuild-all
Hi Brian,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/bcain/linux.git bcain/qemu_boot
head: 844bcfb5bee7bf0e713f61307dc2a4e16963c2f9
commit: 520783c1a795b1b4bd4c87483c2300e9f8e866c6 [34/87] hexagon: work around QEMU uart_port_activate codegen bug
config: parisc-defconfig (https://download.01.org/0day-ci/archive/20260822/202608222156.tLRgZ1JT-lkp@intel.com/config)
compiler: hppa-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260822/202608222156.tLRgZ1JT-lkp@intel.com/reproduce)
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>
| Closes: https://lore.kernel.org/oe-kbuild-all/202608222156.tLRgZ1JT-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/tty/serial/serial_core.c:1939:1: warning: 'optnone' attribute directive ignored [-Wattributes]
1939 | {
| ^
vim +/optnone +1939 drivers/tty/serial/serial_core.c
1c7b13c4886f5c drivers/tty/serial/serial_core.c Jiri Slaby 2011-11-09 1931
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1932 /*
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1933 * Work around QEMU hexagon emulation bug: the conditional
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1934 * memd + dealloc_return packet generated at -O2 corrupts
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1935 * callee-saved registers due to incorrect packet semantics.
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1936 */
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1937 static int __attribute__((optnone))
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1938 uart_port_activate(struct tty_port *port, struct tty_struct *tty)
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 @1939 {
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 1940 struct uart_state *state = container_of(port, struct uart_state, port);
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 1941 struct uart_port *uport;
13b18d35909707 drivers/tty/serial/serial_core.c Serge Semin 2019-05-08 1942 int ret;
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 1943
4047b37122d1be drivers/tty/serial/serial_core.c Peter Hurley 2016-04-09 1944 uport = uart_port_check(state);
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 1945 if (!uport || uport->flags & UPF_DEAD)
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 1946 return -ENXIO;
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1947
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1948 /*
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1949 * Start up the serial port.
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1950 */
dcd794c6ed631b drivers/tty/serial/serial_core.c Ilpo Järvinen 2023-01-17 1951 ret = uart_startup(tty, state, false);
13b18d35909707 drivers/tty/serial/serial_core.c Serge Semin 2019-05-08 1952 if (ret > 0)
9b5aa54986fc85 drivers/tty/serial/serial_core.c Ilpo Järvinen 2023-01-17 1953 tty_port_set_active(port, true);
13b18d35909707 drivers/tty/serial/serial_core.c Serge Semin 2019-05-08 1954
13b18d35909707 drivers/tty/serial/serial_core.c Serge Semin 2019-05-08 1955 return ret;
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1956 }
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1957
:::::: The code at line 1939 was first introduced by commit
:::::: b3b57646186400d4f54652ab7bbf55f5764d9467 tty: serial_core: convert uart_open to use tty_port_open
:::::: TO: Rob Herring <robh@kernel.org>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread* [bcain:bcain/qemu_boot 34/87] drivers/tty/serial/serial_core.c:1939:1: warning: 'optnone' attribute directive ignored
@ 2026-08-14 18:13 kernel test robot
0 siblings, 0 replies; 2+ messages in thread
From: kernel test robot @ 2026-08-14 18:13 UTC (permalink / raw)
To: Brian Cain; +Cc: oe-kbuild-all
tree: https://git.kernel.org/pub/scm/linux/kernel/git/bcain/linux.git bcain/qemu_boot
head: f5debfeae808bae06ccbc26605a5c1404eba2588
commit: 520783c1a795b1b4bd4c87483c2300e9f8e866c6 [34/87] hexagon: work around QEMU uart_port_activate codegen bug
config: x86_64-rhel-9.4-bpf (https://download.01.org/0day-ci/archive/20260814/202608142032.jgN7nmru-lkp@intel.com/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260814/202608142032.jgN7nmru-lkp@intel.com/reproduce)
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>
| Closes: https://lore.kernel.org/oe-kbuild-all/202608142032.jgN7nmru-lkp@intel.com/
All warnings (new ones prefixed by >>):
>> drivers/tty/serial/serial_core.c:1939:1: warning: 'optnone' attribute directive ignored [-Wattributes]
1939 | {
| ^
vim +/optnone +1939 drivers/tty/serial/serial_core.c
1c7b13c4886f5c drivers/tty/serial/serial_core.c Jiri Slaby 2011-11-09 1931
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1932 /*
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1933 * Work around QEMU hexagon emulation bug: the conditional
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1934 * memd + dealloc_return packet generated at -O2 corrupts
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1935 * callee-saved registers due to incorrect packet semantics.
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1936 */
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1937 static int __attribute__((optnone))
520783c1a795b1 drivers/tty/serial/serial_core.c Brian Cain 2026-01-26 1938 uart_port_activate(struct tty_port *port, struct tty_struct *tty)
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 @1939 {
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 1940 struct uart_state *state = container_of(port, struct uart_state, port);
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 1941 struct uart_port *uport;
13b18d35909707 drivers/tty/serial/serial_core.c Serge Semin 2019-05-08 1942 int ret;
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 1943
4047b37122d1be drivers/tty/serial/serial_core.c Peter Hurley 2016-04-09 1944 uport = uart_port_check(state);
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 1945 if (!uport || uport->flags & UPF_DEAD)
b3b57646186400 drivers/tty/serial/serial_core.c Rob Herring 2016-08-22 1946 return -ENXIO;
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1947
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1948 /*
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1949 * Start up the serial port.
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1950 */
dcd794c6ed631b drivers/tty/serial/serial_core.c Ilpo Järvinen 2023-01-17 1951 ret = uart_startup(tty, state, false);
13b18d35909707 drivers/tty/serial/serial_core.c Serge Semin 2019-05-08 1952 if (ret > 0)
9b5aa54986fc85 drivers/tty/serial/serial_core.c Ilpo Järvinen 2023-01-17 1953 tty_port_set_active(port, true);
13b18d35909707 drivers/tty/serial/serial_core.c Serge Semin 2019-05-08 1954
13b18d35909707 drivers/tty/serial/serial_core.c Serge Semin 2019-05-08 1955 return ret;
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1956 }
^1da177e4c3f41 drivers/serial/serial_core.c Linus Torvalds 2005-04-16 1957
:::::: The code at line 1939 was first introduced by commit
:::::: b3b57646186400d4f54652ab7bbf55f5764d9467 tty: serial_core: convert uart_open to use tty_port_open
:::::: TO: Rob Herring <robh@kernel.org>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 2+ messages in thread
end of thread, other threads:[~2026-08-23 12:30 UTC | newest]
Thread overview: 2+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2026-08-23 12:30 [bcain:bcain/qemu_boot 34/87] drivers/tty/serial/serial_core.c:1939:1: warning: 'optnone' attribute directive ignored kernel test robot
-- strict thread matches above, loose matches on Subject: below --
2026-08-14 18:13 kernel test robot
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.