]> err.no Git - linux-2.6/log
linux-2.6
17 years ago[PATCH] Char: isicom, fix tty index check
Jiri Slaby [Fri, 8 Dec 2006 10:38:57 +0000 (02:38 -0800)]
[PATCH] Char: isicom, fix tty index check

Since tty->index is signed and may be < 0, we should assign this to int not
uint.  There is already a check to ensure if it is not negative, but gcc
complains with -W flag enabled and it is perfectly correct:
drivers/char/isicom.c:953: warning: comparison of unsigned expression < 0
is always false

Fix this issue by converting `line' variable from uint to int.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: isicom, remove cvs stuff
Jiri Slaby [Fri, 8 Dec 2006 10:38:56 +0000 (02:38 -0800)]
[PATCH] Char: isicom, remove cvs stuff

We don't need RCS_ID & co. Extract them from the code and define only one
macro -- SX_VERSION.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: isicom, simplify timer
Jiri Slaby [Fri, 8 Dec 2006 10:38:55 +0000 (02:38 -0800)]
[PATCH] Char: isicom, simplify timer

Don't init timer in such complicated way. Use DEFINE_TIMER and then only
mod_timer to reset the expiration.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: isicom, use completion
Jiri Slaby [Fri, 8 Dec 2006 10:38:55 +0000 (02:38 -0800)]
[PATCH] Char: isicom, use completion

Use wait_for_completion+complete instead of variables+msleep hack.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: isicom, check kmalloc retval
Jiri Slaby [Fri, 8 Dec 2006 10:38:54 +0000 (02:38 -0800)]
[PATCH] Char: isicom, check kmalloc retval

Value returned from kamlloc may be NULL, we should check if ENOMEM occured.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: isicom, use pci_request_region
Jiri Slaby [Fri, 8 Dec 2006 10:38:53 +0000 (02:38 -0800)]
[PATCH] Char: isicom, use pci_request_region

Use pci_request_region in pci probing function instead of request_region.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: isicom, move to tty_register_device
Jiri Slaby [Fri, 8 Dec 2006 10:38:52 +0000 (02:38 -0800)]
[PATCH] Char: isicom, move to tty_register_device

Instead of registering all devices in register_tty_driver, register devices in
probe function and register only port_count devices.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: isicom, remove unneeded memset
Jiri Slaby [Fri, 8 Dec 2006 10:38:51 +0000 (02:38 -0800)]
[PATCH] Char: isicom, remove unneeded memset

Memsetting of global static variables is not needed in the init code.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: isicom, remove isa code
Jiri Slaby [Fri, 8 Dec 2006 10:38:51 +0000 (02:38 -0800)]
[PATCH] Char: isicom, remove isa code

ISA is not supported by this driver, remove parts, that take care of this.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: isicom, rename init function
Jiri Slaby [Fri, 8 Dec 2006 10:38:50 +0000 (02:38 -0800)]
[PATCH] Char: isicom, rename init function

Rename init function from setup to init and mark it as __init, not __devinit.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: isicom, expand function
Jiri Slaby [Fri, 8 Dec 2006 10:38:49 +0000 (02:38 -0800)]
[PATCH] Char: isicom, expand function

Simple functions (those, that calls reuest_irq, request_region et al) may be
expanded directly in code.  It makes probe function more readable and
transparent.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] termios: Enable new style termios ioctls on x86-64
Alan Cox [Fri, 8 Dec 2006 10:38:48 +0000 (02:38 -0800)]
[PATCH] termios: Enable new style termios ioctls on x86-64

This turns on the split input/output speed features and arbitary baud rate
handling for the x86-64 platform.  Nothing should break if you use existing
standard speeds.  If you use the new speed stuff then you may see some
drivers failing to report the speed changes properly in error cases.  This
will be worked on further.  For the working cases this all seems happy.
I'll post a test suite used to test the basic stuff as well.

Patches for i386 will follow when I get a moment but are basically the
same.  If people could patch/test-suite other architectures and submit them
that would be great.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] tty_ioctl: use termios for the old structure and termios2 for the new
Alan Cox [Fri, 8 Dec 2006 10:38:47 +0000 (02:38 -0800)]
[PATCH] tty_ioctl: use termios for the old structure and termios2 for the new

Having split out the user and kernel structures it turns out that some non
glibc C libraries pull their termios struct from the kernel headers
directly or indirectly.  This means we must keep "struct termios" as the
library sees it correct for the old ioctls.  Not a big problem just shuffle
the names and ifdef around a bit

[akpm@osdl.org: build fix]
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] tty: switch to ktermios
Alan Cox [Fri, 8 Dec 2006 10:38:45 +0000 (02:38 -0800)]
[PATCH] tty: switch to ktermios

This is the grungy swap all the occurrences in the right places patch that
goes with the updates.  At this point we have the same functionality as
before (except that sgttyb() returns speeds not zero) and are ready to
begin turning new stuff on providing nobody reports lots of bugs

If you are a tty driver author converting an out of tree driver the only
impact should be termios->ktermios name changes for the speed/property
setting functions from your upper layers.

If you are implementing your own TCGETS function before then your driver
was broken already and its about to get a whole lot more painful for you so
please fix it 8)

Also fill in c_ispeed/ospeed on init for most devices, although the current
code will do this for you anyway but I'd like eventually to lose that extra
paranoia

[akpm@osdl.org: bluetooth fix]
[mp3@de.ibm.com: sclp fix]
[mp3@de.ibm.com: warning fix for tty3270]
[hugh@veritas.com: fix tty_ioctl powerpc build]
[jdike@addtoit.com: uml: fix ->set_termios declaration]
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Acked-by: Peter Oberparleiter <oberpar@de.ibm.com>
Cc: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] tty: switch to ktermios and new framework
Alan Cox [Fri, 8 Dec 2006 10:38:44 +0000 (02:38 -0800)]
[PATCH] tty: switch to ktermios and new framework

This is the core of the switch to the new framework.  I've split it from the
driver patches which are mostly search/replace and would encourage people to
give this one a good hard stare.

The references to BOTHER and ISHIFT are the termios values that must be
defined by a platform once it wants to turn on "new style" ioctl support.  The
code patches here ensure that providing

1. The termios overlays the ktermios in memory
2. The only new kernel only fields are c_ispeed/c_ospeed (or none)

the existing behaviour is retained.  This is true for the patches at this
point in time.

Future patches will define BOTHER, ISHIFT and enable newer termios structures
for each architecture, and once they are all done some of the ifdefs also
vanish.

[akpm@osdl.org: warning fix]
[akpm@osdl.org: IRDA fix]
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] tty: preparatory structures for termios revamp
Alan Cox [Fri, 8 Dec 2006 10:38:43 +0000 (02:38 -0800)]
[PATCH] tty: preparatory structures for termios revamp

In order to sort out our struct termios and add proper speed control we need
to separate the kernel and user termios structures.  Glibc is fine but the
other libraries rely on the kernel exported struct termios and we need to
extend this without breaking the ABI/API

To do so we add a struct ktermios which is the kernel view of a termios
structure and overlaps the struct termios with extra fields on the end for
now.  (That limitation will go away in later patches).  Some platforms (eg
alpha) planned ahead and thus use the same struct for both, others did not.

This just adds the structures but does not use them, it seems a sensible
splitting point for bisect if there are compile failures (not that I expect
them)

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: stallion, remove many prototypes
Jiri Slaby [Fri, 8 Dec 2006 10:38:42 +0000 (02:38 -0800)]
[PATCH] Char: stallion, remove many prototypes

Many prototypes are useless, since functions are declared before they are
called.  Also some code was easy to move to resolve this dependency and delete
prototypes.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: stallion, mark functions as init
Jiri Slaby [Fri, 8 Dec 2006 10:38:41 +0000 (02:38 -0800)]
[PATCH] Char: stallion, mark functions as init

Use __init macro for functions, that may be freed after initialization.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: stallion, uninline functions
Jiri Slaby [Fri, 8 Dec 2006 10:38:40 +0000 (02:38 -0800)]
[PATCH] Char: stallion, uninline functions

- Do not inline such long functions, it won't speed up anything.
- Remove prototypes of these functions.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: stallion, move init/deinit
Jiri Slaby [Fri, 8 Dec 2006 10:38:40 +0000 (02:38 -0800)]
[PATCH] Char: stallion, move init/deinit

- Move code from stl_init into module init function, because calling it was the
  only one thing, that it did.
- Move this code to the end of the driver (usual place for this) to resolve
  dependencies simply -- without prototypes.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: stallion, kill typedefs
Jiri Slaby [Fri, 8 Dec 2006 10:38:39 +0000 (02:38 -0800)]
[PATCH] Char: stallion, kill typedefs

Typedefs are considered ugly in the kernel. Eliminate them.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: stallion, remove unneeded casts
Jiri Slaby [Fri, 8 Dec 2006 10:38:38 +0000 (02:38 -0800)]
[PATCH] Char: stallion, remove unneeded casts

casts of NULL are unnecessary. And so casts to (void *) are.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: stallion, use pr_debug macro
Jiri Slaby [Fri, 8 Dec 2006 10:38:37 +0000 (02:38 -0800)]
[PATCH] Char: stallion, use pr_debug macro

Use pr_debug kernel macro instead of #ifdef DEBUG | printk() | #endif

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] mxser-workqueue-fixes
Andrew Morton [Fri, 8 Dec 2006 10:38:36 +0000 (02:38 -0800)]
[PATCH] mxser-workqueue-fixes

Cc: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] mxser_new: correct tty driver name
Jiri Slaby [Fri, 8 Dec 2006 10:38:35 +0000 (02:38 -0800)]
[PATCH] mxser_new: correct tty driver name

Mxser tty driver name should be ttyMI, not ttyM.  Correct this in mxser_new to
avoid conflicts with isicom driver, which is ttyM.

Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] isicom, mxser MAINTAINERS update
Jiri Slaby [Fri, 8 Dec 2006 10:38:35 +0000 (02:38 -0800)]
[PATCH] isicom, mxser MAINTAINERS update

I can maintain moxa and isicom char drivers, because I've rewritten them to
the new API.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, clean macros
Jiri Slaby [Fri, 8 Dec 2006 10:38:34 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, clean macros

Celan redundant macros.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, pci probing
Jiri Slaby [Fri, 8 Dec 2006 10:38:33 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, pci probing

Finally, the intention of the patch serie: PCI probing for this driver.  add
pci_driver structure, (un)register it and add some stuff, which this needs.
Remove pdev pointer from board structure, because it's no longer needed.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: mxser_new, delete ttys and termios
Jiri Slaby [Fri, 8 Dec 2006 10:38:32 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, delete ttys and termios

- Driver uses global tty_struct array, which tries to assign to the
  tty_driver's ttys.
- the very same thing for termios
- the same for termios_locked

Kill such constructions.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: mxser_new, correct intr handler proto
Jiri Slaby [Fri, 8 Dec 2006 10:38:31 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, correct intr handler proto

Prototype of the driver's interrupt handler is old-fashioned, past changes
tell us, we won't get pt_regs as the 3rd argument.  There are only 2 params.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: mxser_new, comments cleanup
Jiri Slaby [Fri, 8 Dec 2006 10:38:31 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, comments cleanup

mxser_new, comments cleanup

- Remove commented code, since we have version control.
- Remove comments containing "following added by..." and "above added by,..".
  It's useless.
- Align other comments.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: mxser_new, reverse if-else-paths patch
Jiri Slaby [Fri, 8 Dec 2006 10:38:30 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, reverse if-else-paths patch

This patch was intorduced in mxser to 1.9.1 conversion, but causes endless
sleep in tcdrain userspace call.

Thanks to Sergei Organov <osv@javad.com> for testing and pointing this out.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: mxser_new, compact structures, round2
Jiri Slaby [Fri, 8 Dec 2006 10:38:29 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, compact structures, round2

Too many structures are in the driver for each type of card.  Make only one
for all cards and appropriate alter the code.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: mxser_new, register tty devices on the fly
Jiri Slaby [Fri, 8 Dec 2006 10:38:28 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, register tty devices on the fly

Register tty indexes only for real devices, udev then creates nodes for them
(and only for them).  Move tty_register_driver before probing, to be correct
when calling tty_register_device.  Also tell tty layer by tty_driver flags,
that we are registering devices.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, compress isa finding
Jiri Slaby [Fri, 8 Dec 2006 10:38:27 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, compress isa finding

ISA cards finding was too complex -- 2 (module params + predefined) absolutely
same routines, join them together with one for loop, one if and one indent
level.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, don't check tty_unregister retval
Jiri Slaby [Fri, 8 Dec 2006 10:38:26 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, don't check tty_unregister retval

Like other drivers silently unregister_tty_driver and put_tty_driver.  It
shouldn't be busy when module release function is called, since we are not
bsd, no refs shouldn't be held.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, correct fail paths
Jiri Slaby [Fri, 8 Dec 2006 10:38:25 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, correct fail paths

Resources were not released in some fail paths.  Correct this behaviour by
implementing function and calling it when something fails.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, testbit for bit testing
Jiri Slaby [Fri, 8 Dec 2006 10:38:25 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, testbit for bit testing

Use testbit like in tty subsystem for TTY_IO_ERROR testing.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, eliminate tty ldisc deref
Jiri Slaby [Fri, 8 Dec 2006 10:38:24 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, eliminate tty ldisc deref

Use tty_ldisc_flush and tty_wakeup helpers for accessing ldisc internals.

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] char: remove unneded termbits redefinitions (mxser_new)
Jiri Slaby [Fri, 8 Dec 2006 10:38:23 +0000 (02:38 -0800)]
[PATCH] char: remove unneded termbits redefinitions (mxser_new)

No need to redefine termbits in char tree.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, CMSPAR is defined
Jiri Slaby [Fri, 8 Dec 2006 10:38:22 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, CMSPAR is defined

There is no need to have another (ifndeffed) definition of CMSPAR.  It's
defined in includes.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, code upside down
Jiri Slaby [Fri, 8 Dec 2006 10:38:21 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, code upside down

Reorder functions upside down not to have too many prototypes of each function
and have some order (similar to other drivers).

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, alter license terms
Jiri Slaby [Fri, 8 Dec 2006 10:38:20 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, alter license terms

- We don't need useless paragraphs in license terms.

- Add me to copyright.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, debug printk dependent on DEBUG
Jiri Slaby [Fri, 8 Dec 2006 10:38:20 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, debug printk dependent on DEBUG

Print some debug info only when DEBUG is enabled (use pr_debug macro).
Eliminate verbose kernel parameter which takes care of this.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, remove request for testers line
Jiri Slaby [Fri, 8 Dec 2006 10:38:19 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, remove request for testers line

Remove printk with info we are looking for a tester.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, revert spin_lock changes
Jiri Slaby [Fri, 8 Dec 2006 10:38:18 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, revert spin_lock changes

Some spinlock changes were introduced in 1.9.1 original moxa driver.  Revert
them, since they cause machine not responding.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, kill unneeded memsets
Jiri Slaby [Fri, 8 Dec 2006 10:38:17 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, kill unneeded memsets

mxser_new, kill unneeded memsets

There is no need to re-zero static global variables' memory, hence memsets
doing this are useless.  alloc_tty_struct also zeroes allocated memory:
another candidate for removing.

This fixes also a bug -- global structures are cleaned up after
initialization of some its parts.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] char: mxser_new, check request_region retvals
Jiri Slaby [Fri, 8 Dec 2006 10:38:17 +0000 (02:38 -0800)]
[PATCH] char: mxser_new, check request_region retvals

mxser_new, check request_region retvals

Return values of (pci_)request_region should be checked and error should be
returned if something is in bad state.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] char: mxser_new, pci_request_region for pci regions
Jiri Slaby [Fri, 8 Dec 2006 10:38:16 +0000 (02:38 -0800)]
[PATCH] char: mxser_new, pci_request_region for pci regions

mxser_new, pci_request_region for pci regions

Use pci_request_region instead of standard request_region for pci device
regions.  More checking, simplier use.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] char: mxser_new, use __(dev)init macros
Jiri Slaby [Fri, 8 Dec 2006 10:38:15 +0000 (02:38 -0800)]
[PATCH] char: mxser_new, use __(dev)init macros

mxser_new, use __(dev)init macros

Let kernel know what can be freed after init of the driver.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Char: mxser_new, rework to allow dynamic structs
Jiri Slaby [Fri, 8 Dec 2006 10:38:14 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, rework to allow dynamic structs

This patch is preparation for further patches (pci probing) to allow allocated
structures to be private data in pci_dev structure.  Union two different
structures used in the driver (hw_conf and port/board descriptor) to another
2: port and board not to initialize 2 different things and to have ports
contained in board structure.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: mxser_new, upgrade to 1.9.1
Jiri Slaby [Fri, 8 Dec 2006 10:38:13 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, upgrade to 1.9.1

Change cloned experimental driver according to original 1.9.1 moxa driver.
Some int->ulong conversions, outb ~UART_IER_THRI constant.  Remove commented
stuff.

I also added printk line with info, if somebody wants to test it, he may
contact me as I can potentially debug the driver with him or just to confirm
it works properly.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] Char: mxser_new, correct include file
Jiri Slaby [Fri, 8 Dec 2006 10:38:12 +0000 (02:38 -0800)]
[PATCH] Char: mxser_new, correct include file

include mxser_new.h instead of original mxser.h

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] mxser: session warning fix
Andrew Morton [Fri, 8 Dec 2006 10:38:12 +0000 (02:38 -0800)]
[PATCH] mxser: session warning fix

Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] mxser: make an experimental clone
Jiri Slaby [Fri, 8 Dec 2006 10:38:11 +0000 (02:38 -0800)]
[PATCH] mxser: make an experimental clone

Clone a new driver for moxa smartio devices by copying mxser.c to mxser_new.c
and mxser.h to mxser_new.h.  No other changes are made.

This is for purposes of updating the driver to the latest vendor version.

Signed-off-by: Jiri Slaby <jirislaby@gmail.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>
17 years ago[PATCH] mxser: PCI refcounts
Alan Cox [Fri, 8 Dec 2006 10:38:10 +0000 (02:38 -0800)]
[PATCH] mxser: PCI refcounts

Switch to pci ref counts for mxser when handling PCI devices.  Use
pci_get_device and drop the reference when we finish and unload.

Signed-off-by: Alan Cox <alan@redhat.com>
Cc: Greg KH <greg@kroah.com>
Cc: <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] mxser: correct tty driver name
Jiri Slaby [Fri, 8 Dec 2006 10:38:09 +0000 (02:38 -0800)]
[PATCH] mxser: correct tty driver name

Mxser tty driver name should be ttyMI, not ttyM.  Correct this in mxser to
avoid conflicts with isicom driver, which is ttyM.

Acked-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Generic ioremap_page_range: sh64 conversion
Haavard Skinnemoen [Fri, 8 Dec 2006 10:38:08 +0000 (02:38 -0800)]
[PATCH] Generic ioremap_page_range: sh64 conversion

Convert SH64 to use generic ioremap_page_range()

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Generic ioremap_page_range: sh conversion
Haavard Skinnemoen [Fri, 8 Dec 2006 10:38:07 +0000 (02:38 -0800)]
[PATCH] Generic ioremap_page_range: sh conversion

Convert SH to use generic ioremap_page_range()

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Generic ioremap_page_range: s390 conversion
Haavard Skinnemoen [Fri, 8 Dec 2006 10:38:06 +0000 (02:38 -0800)]
[PATCH] Generic ioremap_page_range: s390 conversion

Convert S390 to use generic ioremap_page_range()

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Generic ioremap_page_range: parisc conversion
Haavard Skinnemoen [Fri, 8 Dec 2006 10:38:05 +0000 (02:38 -0800)]
[PATCH] Generic ioremap_page_range: parisc conversion

Convert parisc to use generic ioremap_page_range()

Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Acked-by: Kyle McMartin <kyle@parisc-linux.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] Generic ioremap_page_range: mips conversion
Haavard Skinnemoen [Fri, 8 Dec 2006 10:38:04 +0000 (02:38 -0800)]
[PATCH] Generic ioremap_page_range: mips conversion

Convert MIPS to use generic ioremap_page_range()

[yoichi_yuasa@tripeaks.co.jp: build fix]
Signed-off-by: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] session_of_pgrp: kill unnecessary do_each_task_pid(PIDTYPE_PGID)
Oleg Nesterov [Fri, 8 Dec 2006 10:38:03 +0000 (02:38 -0800)]
[PATCH] session_of_pgrp: kill unnecessary do_each_task_pid(PIDTYPE_PGID)

All members of the process group have the same sid and it can't be == 0.

NOTE: this code (and a similar one in sys_setpgid) was needed because it
was possibe to have ->session == 0. It's not possible any longer since

[PATCH] pidhash: don't use zero pids
Commit: c7c6464117a02b0d54feb4ebeca4db70fa493678

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] sys_setpgid: eliminate unnecessary do_each_task_pid(PIDTYPE_PGID)
Oleg Nesterov [Fri, 8 Dec 2006 10:38:02 +0000 (02:38 -0800)]
[PATCH] sys_setpgid: eliminate unnecessary do_each_task_pid(PIDTYPE_PGID)

All tasks in the process group have the same sid, we don't need to iterate
them all to check that the caller of sys_setpgid() doesn't change its
session.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] add child reaper to pid_namespace
Sukadev Bhattiprolu [Fri, 8 Dec 2006 10:38:01 +0000 (02:38 -0800)]
[PATCH] add child reaper to pid_namespace

Add a per pid_namespace child-reaper.  This is needed so processes are reaped
within the same pid space and do not spill over to the parent pid space.  Its
also needed so containers preserve existing semantic that pid == 1 would reap
orphaned children.

This is based on Eric Biederman's patch: http://lkml.org/lkml/2006/2/6/285

Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] use current->nsproxy->pid_ns
Cedric Le Goater [Fri, 8 Dec 2006 10:38:00 +0000 (02:38 -0800)]
[PATCH] use current->nsproxy->pid_ns

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] to nsproxy
Cedric Le Goater [Fri, 8 Dec 2006 10:37:59 +0000 (02:37 -0800)]
[PATCH] to nsproxy

Add the pid namespace framework to the nsproxy object.  The copy of the pid
namespace only increases the refcount on the global pid namespace,
init_pid_ns, and unshare is not implemented.

There is no configuration option to activate or deactivate this feature
because this not relevant for the moment.

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] rename struct pspace to struct pid_namespace
Sukadev Bhattiprolu [Fri, 8 Dec 2006 10:37:58 +0000 (02:37 -0800)]
[PATCH] rename struct pspace to struct pid_namespace

Rename struct pspace to struct pid_namespace for consistency with other
namespaces (uts_namespace and ipc_namespace).  Also rename
include/linux/pspace.h to include/linux/pid_namespace.h and variables from
pspace to pid_ns.

Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] identifier to nsproxy
Cedric Le Goater [Fri, 8 Dec 2006 10:37:57 +0000 (02:37 -0800)]
[PATCH] identifier to nsproxy

Add an identifier to nsproxy.  The default init_ns_proxy has identifier 0 and
allocated nsproxies are given -1.

This identifier will be used by a new syscall sys_bind_ns.

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] rename struct namespace to struct mnt_namespace
Kirill Korotaev [Fri, 8 Dec 2006 10:37:56 +0000 (02:37 -0800)]
[PATCH] rename struct namespace to struct mnt_namespace

Rename 'struct namespace' to 'struct mnt_namespace' to avoid confusion with
other namespaces being developped for the containers : pid, uts, ipc, etc.
'namespace' variables and attributes are also renamed to 'mnt_ns'

Signed-off-by: Kirill Korotaev <dev@sw.ru>
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] add process_session() helper routine: deprecate old field
Cedric Le Goater [Fri, 8 Dec 2006 10:37:55 +0000 (02:37 -0800)]
[PATCH] add process_session() helper routine: deprecate old field

Add an anonymous union and ((deprecated)) to catch direct usage of the
session field.

[akpm@osdl.org: fix various missed conversions]
[jdike@addtoit.com: fix UML bug]
Signed-off-by: Jeff Dike <jdike@addtoit.com>
Cc: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] add process_session() helper routine
Cedric Le Goater [Fri, 8 Dec 2006 10:37:54 +0000 (02:37 -0800)]
[PATCH] add process_session() helper routine

Replace occurences of task->signal->session by a new process_session() helper
routine.

It will be useful for pid namespaces to abstract the session pid number.

Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Cc: Kirill Korotaev <dev@openvz.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Herbert Poetzl <herbert@13thfloor.at>
Cc: Sukadev Bhattiprolu <sukadev@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] LOG2: Provide ilog2() fallbacks for powerpc
David Howells [Fri, 8 Dec 2006 10:37:53 +0000 (02:37 -0800)]
[PATCH] LOG2: Provide ilog2() fallbacks for powerpc

Provide ilog2() fallbacks for powerpc for 32-bit numbers and 64-bit numbers on
ppc64.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] LOG2: Alter get_order() so that it can make use of ilog2() on a constant
David Howells [Fri, 8 Dec 2006 10:37:52 +0000 (02:37 -0800)]
[PATCH] LOG2: Alter get_order() so that it can make use of ilog2() on a constant

Alter get_order() so that it can make use of ilog2() on a constant to produce
a constant value, retaining the ability for an arch to override it in the
non-const case.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] LOG2: Alter roundup_pow_of_two() so that it can use a ilog2() on a constant
David Howells [Fri, 8 Dec 2006 10:37:51 +0000 (02:37 -0800)]
[PATCH] LOG2: Alter roundup_pow_of_two() so that it can use a ilog2() on a constant

Alter roundup_pow_of_two() so that it can make use of ilog2() on a constant to
produce a constant value, retaining the ability for an arch to override it in
the non-const case.

This permits the function to be used to initialise variables.

Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] LOG2: Implement a general integer log2 facility in the kernel
David Howells [Fri, 8 Dec 2006 10:37:49 +0000 (02:37 -0800)]
[PATCH] LOG2: Implement a general integer log2 facility in the kernel

This facility provides three entry points:

ilog2() Log base 2 of unsigned long
ilog2_u32() Log base 2 of u32
ilog2_u64() Log base 2 of u64

These facilities can either be used inside functions on dynamic data:

int do_something(long q)
{
...;
y = ilog2(x)
...;
}

Or can be used to statically initialise global variables with constant values:

unsigned n = ilog2(27);

When performing static initialisation, the compiler will report "error:
initializer element is not constant" if asked to take a log of zero or of
something not reducible to a constant.  They treat negative numbers as
unsigned.

When not dealing with a constant, they fall back to using fls() which permits
them to use arch-specific log calculation instructions - such as BSR on
x86/x86_64 or SCAN on FRV - if available.

[akpm@osdl.org: MMC fix]
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: David Howells <dhowells@redhat.com>
Cc: Wojtek Kaniewski <wojtekka@toxygen.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert zorro
Josef Sipek [Fri, 8 Dec 2006 10:37:48 +0000 (02:37 -0800)]
[PATCH] struct path: convert zorro

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert video
Josef Sipek [Fri, 8 Dec 2006 10:37:48 +0000 (02:37 -0800)]
[PATCH] struct path: convert video

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert v4l
Josef Sipek [Fri, 8 Dec 2006 10:37:47 +0000 (02:37 -0800)]
[PATCH] struct path: convert v4l

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert usb
Josef Sipek [Fri, 8 Dec 2006 10:37:46 +0000 (02:37 -0800)]
[PATCH] struct path: convert usb

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert unix
Josef Sipek [Fri, 8 Dec 2006 10:37:45 +0000 (02:37 -0800)]
[PATCH] struct path: convert unix

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert ufs
Josef Sipek [Fri, 8 Dec 2006 10:37:45 +0000 (02:37 -0800)]
[PATCH] struct path: convert ufs

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert udf
Josef Sipek [Fri, 8 Dec 2006 10:37:44 +0000 (02:37 -0800)]
[PATCH] struct path: convert udf

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert sysv
Josef Sipek [Fri, 8 Dec 2006 10:37:43 +0000 (02:37 -0800)]
[PATCH] struct path: convert sysv

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert sunrpc
Josef Sipek [Fri, 8 Dec 2006 10:37:42 +0000 (02:37 -0800)]
[PATCH] struct path: convert sunrpc

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert sparc64
Josef Sipek [Fri, 8 Dec 2006 10:37:41 +0000 (02:37 -0800)]
[PATCH] struct path: convert sparc64

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert sparc
Josef Sipek [Fri, 8 Dec 2006 10:37:41 +0000 (02:37 -0800)]
[PATCH] struct path: convert sparc

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert sound
Josef Sipek [Fri, 8 Dec 2006 10:37:40 +0000 (02:37 -0800)]
[PATCH] struct path: convert sound

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert smbfs
Josef Sipek [Fri, 8 Dec 2006 10:37:39 +0000 (02:37 -0800)]
[PATCH] struct path: convert smbfs

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert sh
Josef Sipek [Fri, 8 Dec 2006 10:37:38 +0000 (02:37 -0800)]
[PATCH] struct path: convert sh

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert selinux
Josef Sipek [Fri, 8 Dec 2006 10:37:38 +0000 (02:37 -0800)]
[PATCH] struct path: convert selinux

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert scsi
Josef Sipek [Fri, 8 Dec 2006 10:37:37 +0000 (02:37 -0800)]
[PATCH] struct path: convert scsi

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert sbus
Josef Sipek [Fri, 8 Dec 2006 10:37:36 +0000 (02:37 -0800)]
[PATCH] struct path: convert sbus

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert s390
Josef Sipek [Fri, 8 Dec 2006 10:37:35 +0000 (02:37 -0800)]
[PATCH] struct path: convert s390

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert s390-drivers
Josef Sipek [Fri, 8 Dec 2006 10:37:34 +0000 (02:37 -0800)]
[PATCH] struct path: convert s390-drivers

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert romfs
Josef Sipek [Fri, 8 Dec 2006 10:37:34 +0000 (02:37 -0800)]
[PATCH] struct path: convert romfs

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert reiserfs
Josef Sipek [Fri, 8 Dec 2006 10:37:33 +0000 (02:37 -0800)]
[PATCH] struct path: convert reiserfs

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert ramfs
Josef Sipek [Fri, 8 Dec 2006 10:37:32 +0000 (02:37 -0800)]
[PATCH] struct path: convert ramfs

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert qnx4
Josef Sipek [Fri, 8 Dec 2006 10:37:32 +0000 (02:37 -0800)]
[PATCH] struct path: convert qnx4

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
17 years ago[PATCH] struct path: convert ppc
Josef Sipek [Fri, 8 Dec 2006 10:37:31 +0000 (02:37 -0800)]
[PATCH] struct path: convert ppc

Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>