linux-stable.git/include/linux/serial_core.h, branch linux-2.6.17.y Linux kernel stable tree [SERIAL] Clean up serial locking when obtaining a reference to a port 2006-04-30T10:13:50+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-04-30T10:13:50+00:00 68ac64cd3fd89fdaa091701f6ab98a9065e9b1b5 The locking for the uart_port is over complicated, and can be simplified if we introduce a flag to indicate that a port is "dead" and will be removed. This also helps the validator because it removes a case of non-nested unlock ordering. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> 
The locking for the uart_port is over complicated, and can be
simplified if we introduce a flag to indicate that a port is "dead"
and will be removed.

This also helps the validator because it removes a case of non-nested
unlock ordering.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Merge master.kernel.org:/home/rmk/linux-2.6-serial 2006-03-23T01:33:12+00:00 Linus Torvalds torvalds@g5.osdl.org 2006-03-23T01:33:12+00:00 9d8f057acbd38d8177cf2ffd5e151d52c2477372 * master.kernel.org:/home/rmk/linux-2.6-serial: [SERIAL] Merge avlab serial board entries in parport_serial [SERIAL] kernel console should send CRLF not LFCR 
* master.kernel.org:/home/rmk/linux-2.6-serial:
  [SERIAL] Merge avlab serial board entries in parport_serial
  [SERIAL] kernel console should send CRLF not LFCR
[SERIAL] kernel console should send CRLF not LFCR 2006-03-20T20:00:09+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-03-20T20:00:09+00:00 d358788f3f30113e49882187d794832905e42592 Glen Turner reported that writing LFCR rather than the more traditional CRLF causes issues with some terminals. Since this aflicts many serial drivers, extract the common code to a library function (uart_console_write) and arrange for each driver to supply a "putchar" function. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Glen Turner reported that writing LFCR rather than the more
traditional CRLF causes issues with some terminals.

Since this aflicts many serial drivers, extract the common code
to a library function (uart_console_write) and arrange for each
driver to supply a "putchar" function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[SPARC64]: Add SUN4V Hypervisor Console driver. 2006-03-20T09:12:18+00:00 David S. Miller davem@sunset.davemloft.net 2006-02-11T10:25:21+00:00 02fd473bd4844befc74f7ca67cd60891e0a2d890 Since it can do things like BREAK and HUP, we implement this as a serial uart driver. This still needs interrupt probing code, as I haven't figured out how interrupts will work or be probed for on SUN4V yet. Signed-off-by: David S. Miller <davem@davemloft.net> 
Since it can do things like BREAK and HUP, we implement
this as a serial uart driver.

This still needs interrupt probing code, as I haven't figured
out how interrupts will work or be probed for on SUN4V yet.

Signed-off-by: David S. Miller <davem@davemloft.net>
[SERIAL] Make uart_port flags a bitwise type 2006-01-21T23:03:28+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-01-21T23:03:28+00:00 0077d45e46fe2af3aaee5813c99268afcd0e7c0e Same reasoning as commit 747c8a55946ed037bf7d62454c3c599c02af2262 but this time we're making uart_port flags a bitwise type - not all of these flags correspond with the old ASYNC_ flags, so there is the possibility for bugs if the wrong ASYNC_* constants are used. Always use UPF_* constants for uart_port->flags. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Same reasoning as commit 747c8a55946ed037bf7d62454c3c599c02af2262
but this time we're making uart_port flags a bitwise type - not
all of these flags correspond with the old ASYNC_ flags, so there
is the possibility for bugs if the wrong ASYNC_* constants are
used.  Always use UPF_* constants for uart_port->flags.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[SERIAL] Fix UPF_ flag usage with uart_info->flags 2006-01-21T22:54:06+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-01-21T22:54:06+00:00 27ae7a7435634820e7f7e2b922d8119f79cfc6e4 The previous change found a bug in the serial SAK handling - because we were looking for UPF_SAK set in uart_info->flags, we would never raise a SAK condition. UPF_SAK is in uart_port->flags. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
The previous change found a bug in the serial SAK handling - because
we were looking for UPF_SAK set in uart_info->flags, we would never
raise a SAK condition.  UPF_SAK is in uart_port->flags.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[SERIAL] Make uart_info flags a bitwise type 2006-01-21T22:50:36+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-01-21T22:50:36+00:00 747c8a55946ed037bf7d62454c3c599c02af2262 The potential for confusing the flags is fairly high. Make uart_info's flags a bitwise type so sparse can check that the right flag definitions are used with the right structure. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
The potential for confusing the flags is fairly high.  Make
uart_info's flags a bitwise type so sparse can check that the
right flag definitions are used with the right structure.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[SERIAL] Make port->ops constant 2006-01-21T22:45:50+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-01-21T22:45:50+00:00 ba899dbc036d24ab6b45faf64e3648a268721cc9 No one should write to the port->ops structure, so make it constant. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
No one should write to the port->ops structure, so make it constant.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[SERIAL] Remove UPF_AUTOPROBE and UPF_BOOT_ONLYMCA 2006-01-21T20:06:14+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2006-01-21T20:06:14+00:00 ca740803856f23dbc5b1872039291231bc131ecb The functionality UPF_BOOT_ONLYMCA provided has been replaced by the 8250_mca module, which only registers MCA ports if MCA is present. UPF_AUTOPROBE has no functional effect - in fact, it's never tested. Only ibmasm set the flag. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
The functionality UPF_BOOT_ONLYMCA provided has been replaced by
the 8250_mca module, which only registers MCA ports if MCA is
present.

UPF_AUTOPROBE has no functional effect - in fact, it's never
tested.  Only ibmasm set the flag.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[SERIAL] convert uart_state.sem to uart_state.mutex 2006-01-13T21:37:07+00:00 Ingo Molnar mingo@elte.hu 2006-01-13T21:37:07+00:00 e2862f6a833ea26591c7feb755dc2e46909182a6 semaphore to mutex conversion. the conversion was generated via scripts, and the result was validated automatically via a script as well. build and boot tested. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
semaphore to mutex conversion.

the conversion was generated via scripts, and the result was validated
automatically via a script as well.

build and boot tested.

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>