David Gibson
abb4a23907
serial: define FIXED_PORT flag for serial_core ...
At present, the serial core always allows setserial in userspace to change the
port address, irq and base clock of any serial port. That makes sense for
legacy ISA ports, but not for (say) embedded ns16550 compatible serial ports
at peculiar addresses. In these cases, the kernel code configuring the ports
must know exactly where they are, and their clocking arrangements (which can
be unusual on embedded boards). It doesn't make sense for userspace to change
these settings.
Therefore, this patch defines a UPF_FIXED_PORT flag for the uart_port
structure. If this flag is set when the serial port is configured, any
attempts to alter the port's type, io address, irq or base clock with
setserial are ignored.
In addition this patch uses the new flag for on-chip serial ports probed in
arch/powerpc/kernel/legacy_serial.c, and for other hard-wired serial ports
probed by drivers/serial/of_serial.c.
Signed-off-by: David Gibson <dwg@au1.ibm.com>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-07 12:12:50 -07:00
remove "struct subsystem" as it is no longer needed
2007-05-02 18:57:59 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of master.kernel.org:/home/rmk/linux-2.6-arm
2007-05-06 13:20:10 -07:00
[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction
2007-05-02 19:27:14 +02:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction
2007-05-02 19:27:14 +02:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
[PATCH] i386: Clean up ELF note generation
2007-05-02 19:27:17 +02:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction
2007-05-02 19:27:14 +02:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction
2007-05-02 19:27:14 +02:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction
2007-05-02 19:27:14 +02:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
Revert "[PATCH] x86: __pa and __pa_symbol address space separation"
2007-05-07 08:44:24 -07:00
Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6
2007-05-05 14:55:20 -07:00
[CRYPTO] cryptd: Add software async crypto daemon
2007-05-02 14:38:32 +10:00
[AF_RXRPC]: Provide secure RxRPC sockets for use by userspace and kernel both
2007-04-26 15:48:28 -07:00
serial: define FIXED_PORT flag for serial_core
2007-05-07 12:12:50 -07:00
i2c: Cleanup the includes of <linux/i2c.h>
2007-05-01 23:26:29 +02:00
UBI: Unsorted Block Images
2007-04-27 14:23:33 +03:00
[MAC80211]: Add mac80211 wireless stack.
2007-05-05 11:45:53 -07:00
add new_id to PCMCIA drivers
2007-05-07 12:12:50 -07:00
PCI: Cleanup the includes of <linux/pci.h>
2007-05-02 19:02:35 -07:00
[AF_RXRPC]: Delete the old RxRPC code.
2007-04-26 15:55:48 -07:00
abb4a23907