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| author | Guenter Roeck <linux@roeck-us.net> | 2024-12-05 17:30:33 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2024-12-06 10:00:01 +0300 |
| commit | 4e450dfd0f968b79204637bf13280892dff287b1 (patch) | |
| tree | 882a74394fd1cf32cc9b27c47092a6717404cd57 /tools/perf/scripts/python/export-to-sqlite.py | |
| parent | 7cc0e0a43a91052477c2921f924a37d9c3891f0c (diff) | |
| download | linux-4e450dfd0f968b79204637bf13280892dff287b1.tar.xz | |
tty: serial: Work around warning backtrace in serial8250_set_defaults
Commit 7c7e6c8924e7 ("tty: serial: handle HAS_IOPORT dependencies")
triggers warning backtraces on a number of platforms which don't support
IO ports.
WARNING: CPU: 0 PID: 0 at drivers/tty/serial/8250/8250_port.c:470 serial8250_set_defaults+0x148/0x1d8
Unsupported UART type 0
The problem is seen because serial8250_set_defaults() is called for
all members of the serial8250_ports[] array even if that array is
not initialized.
Work around the problem by only displaying the warning if the port
type is not 0 (UPIO_PORT) or if iobase is set for the port.
Fixes: 7c7e6c8924e7 ("tty: serial: handle HAS_IOPORT dependencies")
Acked-by: Arnd Bergmann <arnd@arndb.de>
Cc: Niklas Schnelle <schnelle@linux.ibm.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Stafford Horne <shorne@gmail.com>
Link: https://lore.kernel.org/r/20241205143033.2695333-1-linux@roeck-us.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-sqlite.py')
0 files changed, 0 insertions, 0 deletions