Remove legacy ISA serial ports for Accent, Boca, Fourport, Hub6 and MCA
from the architecture specific serial.h include.
The only ports which remain in asm-*/serial.h are the platform specific
entries. These should really be converted by platform maintainers to
use a platform device, such as can be found in
arch/arm/mach-footbridge/isa.c
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Disable the transmitter whenever we want to prevent characters
being transmitted by flow control. However, if we run out of
characters to send and want to only disable the TX interrupt,
allow that scenario.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Fix bugme #4712: read the CTS status and set hw_stopped if CTS
is not active when opening the port and/or enabling CRTSCTS
Thanks to Stefan Wolff for spotting this problem.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Patch from Nicolas Pitre
Those are big, slow and generally not recommended for kernel code.
They are even not present on i386. So it should be concluded that
one could as well get away with do_div() alone.
Signed-off-by: Nicolas Pitre <nico@cam.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
I am using the atxp1 module to change vcore on my NForce2 via userspace
daemon (see punnoor.de).
Currently the atxp1 module will write to the log on every vcore change,
thus filling up my log - which I don't want. I am no kernel coder, but
I guess, this one-liner will change this behaviour in a wanted way, ie
output will be made for debug purposes only.
Signed-off-by: Prakash Punnoor <prakash@punnoor.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
get_request is now expected to be holding on to queue_lock, with interrupts
disabled, when it returns NULL; but one path forgot that, causing all kinds
of nastiness under swap load - badness backtraces, strange failures, BUGs.
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Replace KSEG1ADDR() with CKSEG1ADDR() as the former does not work for
64-bit configurations anymore.
Signed-off-by: Maciej W. Rozycki <macro@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Fix error in timing generation, Tacls is only in the range 0..3
Add proper support for the s3c2440 NAND controller, which has now
been tested on several s3c2440 implementations.
Signed-off-by: Ben Dooks <ben@simtec.co.uk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Add alignment to cmdline.
From: "Timofei V. Bondarenko" <tim@ipi.ac.ru>
Signed-off-by: Joern Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The code was wrong in several aspects. The locking order was
inconsistent, the device aquire code did not reset a variable
after a wakeup and the wakeup handling was not working for
applications where multiple chips are sharing a single
hardware controller.
When a hardware controller is available the locking is now
reduced to the hardware controller lock and the waitqueue is
moved to the hardware controller structure in order to avoid
a wake_up_all().
The problem was pointed out by Ben Dooks, who also found the
missing variable reset as main cause for his deadlock problem.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
This patch changes the way serial ports are locked when getting modem
status. This change is necessary because we will need to atomically
read the modem status and take action depending on the CTS status.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This patch adds the SiS 760 ID to the amd64-agp driver, so that agpgart can be
used on Athlon64 boards based on this chip.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* bttv-driver.c, bttvp.h:
- New bttv module params:
- uv_ratio : allow a ratio of saturation between u and v. If you
have a ratio of 40 and a saturation of 100, usat will be 80 and
vstat 120. Useful to correct a bad color balance.
- full_luma_range : provide a better contrast in using the full
range 0-253 of values instead of 16-253.
- coring : to have a better black level.
- radio range is now defined on tuner-core.c. Cleaning up.
* bttvp.h:
- Fix gcc 4.0 compilation
Signed-off-by: Jorik Jonker <jorik@dnd.utwente.nl>
Signed-off-by: Sylvain Meyer <sylvain.meyer@worldonline.fr>
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Nickolay V Shmyrev <nshmyrev@yandex.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
*tuner-core.c:
- some tuner_info msgs will be generated only if insmod opt
tuner_debug enabled.
- Implemented tuner-core support for VIDIO_S_TUNER to allow
changing mono/stereo mode
- Remove unneeded config options.
- I2C_CLIENT_MULTI option removed.
- support for Philips FMD12ME hybrid tuner
- allow to initialize with another tuner
- Move PHILIPS_FMD initialization code to set_type function,
* tda8290:
- Fix dumb error in tda8290 tunning.
- Radio tuner uses high-precision step instead of 62.5 KHz.
*tea5767.c:
- tuner_info msgs will be generated only if insmod tuner option
tuner_debug enabled.
- some cleanups for better reading.
- Radio tuner uses high-precision step instead of 62.5 KHz.
- Changing radio mode stereo/mono for tea5767 working.
*tuner-simple.c:
- TNF9533-D/IF UHF fixup.
- Radio tuners now uses high-precision step instead of 62.5 KHz.
*mt20xx.c:
- Radio tuner uses high-precision step instead of 62.5 KHz.
*tda9887.c:
- tab and blank spaces corrections.
Signed-off-by: Mauro Carvalho Chehab <mchehab@brturbo.com.br>
Signed-off-by: Gerd Knorr <kraxel@bytesex.org>
Signed-off-by: Nickolay V Shmyrev <nshmyrev@yandex.ru>
Signed-off-by: Hartmut Hackmann <hartmut.hackmann@t-online.de>
Signed-off-by: Michael Krufky <mkrufky@m1k.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
get_io_context needlessly turned off interrupts and checked for racing io
context creations. Both of which aren't needed, because the io context can
only be created while in process context of the current process.
Also, split the function in 2. A light version, current_io_context does not
elevate the reference count specifically, but can be used when in process
context, because the process holds a reference itself.
Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Change around locking a bit for a result of 1-2 less spin lock unlock pairs in
request submission paths.
Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
In the case where the request is not able to be merged by the elevator, don't
retake the lock and retry the merge mechanism after allocating a new request.
Instead assume that the chance of a merge remains slim, and now that we've
done most of the work allocating a request we may as well just go with it.
Also be rid of the GFP_ATOMIC allocation: we've got working mempools for the
block layer now, so let's save atomic memory for things like networking.
Lastly, in get_request_wait, do an initial get_request call before going into
the waitqueue. This is reported to help efficiency.
Signed-off-by: Nick Piggin <nickpiggin@yahoo.com.au>
Cc: Jens Axboe <axboe@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
We add a check of the return value of tty_ldisc_ref(), which
is checked 7 out of 8 times, e.g.:
149 ld = tty_ldisc_ref(tty);
150 if (ld != NULL) {
151 if (ld->set_termios)
152 (ld->set_termios)(tty, &old_termios);
153 tty_ldisc_deref(ld);
154 }
This defect was found automatically by Coverity Prevent, a static analysis
tool.
(akpm: presumably `ld' is never NULL. Oh well)
Signed-off-by: Zaur Kambarov <zkambarov@coverity.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
The check in
627 BUG_ON(index > SG_MEMPOOL_NR);
with SG_MEMPOOL_NR defined in
32 #define SG_MEMPOOL_NR (sizeof(scsi_sg_pools)/sizeof(struct scsi_host_sg_pool))
was not sufficient.
sgp, set in
629 sgp = scsi_sg_pools + index;
is dereferenced in
630 mempool_free(sgl, sgp->pool);
Signed-off-by: Zaur Kambarov <zkambarov@coverity.com>
Cc: <linux-scsi@vger.kernel.org>
Cc: James Bottomley <James.Bottomley@steeleye.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This patch makes some needlessly global code static.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Armin Schindler <armin@melware.de>
Signed-off-by: Karsten Keil <kkeil@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
drivers/isdn/hisax/hfc4s8s_l1.c:317: warning: type qualifiers ignored on function return type
drivers/isdn/hisax/hfc4s8s_l1.c:329: warning: type qualifiers ignored on function return type
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Avoid race occurs when some process have open file descriptor for class
device attributes and already firmware allocated memory are freed. Don't
allow negative loading timeout.
Signed-off-by: Stanislaw W. Gruszka <stf_xl@wp.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This code uses the x86 (non-AMD-ELAN) value of CLOCK_TICK_RATE instead of
CLOCK_TICK_RATE itself, which is wrong for other archs.
Signed-off-by: Emmanuel Colbus <emmanuel.colbus@ensimag.imag.fr>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Fix the same typo in the ixp4xx and ixp2000 watchdog drivers.
Signed-off-by: Lennert Buytenhek <buytenh+lkml@wantstofly.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
In the setup function, the delay variable is initialized with ints[2],
but ints is declared as:
int ints[2];
Since the module parameter should correspond to:
tipar=timeout,delay
I suppose that the following patch fix the problem.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@looxix.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Use msleep() in a few places.
Signed-off-by: Luca Falavigna <dktrkranz@gmail.com>
Acked-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Many drivers use skb->tail unnecessarily.
In these situations, the code roughly looks like:
dev = dev_alloc_skb(...);
[optional] skb_reserve(skb, ...);
... skb->tail ...
But even if the skb_reserve() happens, skb->data equals
skb->tail. So it doesn't make any sense to use anything
other than skb->data in these cases.
Another case was the s2io.c driver directly mucking with
the skb->data and skb->tail pointers. It really just wanted
to do an skb_reserve(), so that's what the code was changed
to do instead.
Another reason I'm making this change as it allows some SKB
cleanups I have planned simpler to merge. In those cleanups,
skb->head, skb->tail, and skb->end pointers are removed, and
replaced with skb->head_room and skb->tail_room integers.
Signed-off-by: David S. Miller <davem@davemloft.net>
Acked-by: Jeff Garzik <jgarzik@pobox.com>
Currently we cap request allocations at q->nr_requests, but we allow a
batching io context to allocate up to 32 more (default setting). This
can flood the queue with request allocations, with only a few batching
processes. The real fix would be to limit the number of batchers, but
as that isn't currently tracked, I suggest we just cap the maximum
number of allocated requests to eg 50% over the limit.
This was observed in real life, users typically see this as vmstat bo
numbers going off the wall with seconds of no queueing afterwards.
Behaviour this bursty is not beneficial.
Signed-off-by: Jens Axboe <axboe@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
insert a missing bio_put when writting the md superblock.
Without this we have a steady growth in the "bio" slab.
Signed-off-by: Neil Brown <neilb@cse.unsw.edu.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Resend 2 with changes per Bjorn Helgaas comments. Changes from original:
+ Change globals to vga_console_iobase/vga_console_membase and make them
unconditional.
+ Address style-related comments.
Patch to extend the PCDP vga setup code to support PCI io/mem translations
for the legacy vga ioport and ram spaces on architectures (e.g. altix) which
need them.
Summary of the changes:
drivers/firmware/pcdp.c
drivers/firmware/pcdp.h
-----------------------
+ add declaration for the spec-defined PCI interface struct (pcdp_if_pci)
as well as support macros.
+ extend setup_vga_console() to know about pcdp_if_pci and add a couple of
globals to hold the io and mem translation offsets if present.
arch/ia64/kernel/setup.c
------------------------
+ tweek early_console_setup() to allow multiple early console setup routines
to be called.
include/asm-ia64/vga.h
----------------------
+ make VGA_MAP_MEM vga_console_membase aware
Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Add DRM device driver for VIA Unichrome chipsets
From: Unichrome Project http://unichrome.sf.net, Erdi Chen, Thomas Hellstrom Signed-off-by: Dave Airlie <airlied@linux.ie>
