Commit Graph

114900 Commits

Author SHA1 Message Date
Alexey Dobriyan
f40cbaa5b0 proc: move sysrq-trigger out of fs/proc/
Move it into sysrq.c, along with the rest of the sysrq implementation.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:47 -07:00
Kay Sievers
ac0d86f580 block: sanitize invalid partition table entries
We currently follow blindly what the partition table lies about the
disk, and let the kernel create block devices which can not be accessed.
Trying to identify the device leads to kernel logs full of:
  sdb: rw=0, want=73392, limit=28800
  attempt to access beyond end of device

Here is an example of a broken partition table, where sda2 starts
behind the end of the disk, and sdb3 is larger than the entire disk:
  Disk /dev/sdb: 14 MB, 14745600 bytes
  1 heads, 29 sectors/track, 993 cylinders, total 28800 sectors
     Device Boot      Start         End      Blocks   Id  System
  /dev/sdb1              29        7800        3886   83  Linux
  /dev/sdb2           37801       45601        3900+  83  Linux
  /dev/sdb3           15602       73402       28900+  83  Linux
  /dev/sdb4           23403       28796        2697   83  Linux

The kernel creates these completely invalid devices, which can not be
accessed, or may lead to other unpredictable failures:
  grep . /sys/class/block/sdb*/{start,size}
  /sys/class/block/sdb/size:28800
  /sys/class/block/sdb1/start:29
  /sys/class/block/sdb1/size:7772
  /sys/class/block/sdb2/start:37801
  /sys/class/block/sdb2/size:7801
  /sys/class/block/sdb3/start:15602
  /sys/class/block/sdb3/size:57801
  /sys/class/block/sdb4/start:23403
  /sys/class/block/sdb4/size:5394

With this patch, we ignore partitions which start behind the end of the disk,
and limit partitions to the end of the disk if they pretend to be larger:
  grep . /sys/class/block/sdb*/{start,size}
  /sys/class/block/sdb/size:28800
  /sys/class/block/sdb1/start:29
  /sys/class/block/sdb1/size:7772
  /sys/class/block/sdb3/start:15602
  /sys/class/block/sdb3/size:13198
  /sys/class/block/sdb4/start:23403
  /sys/class/block/sdb4/size:5394

These warnings are printed to the kernel log:
  sdb: p2 ignored, start 37801 is behind the end of the disk
  sdb: p3 size 57801 limited to end of disk

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Cc: Herton Ronaldo Krzesinski <herton@mandriva.com.br>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:47 -07:00
Adrian Bunk
6722e45c2d fs/partitions/acorn.c: remove dead code
I missed this when I did the arm26 removal.

Reported-by: Robert P. J. Day <rpjday@crashcourse.ca>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:47 -07:00
Bjorn Helgaas
266a813c08 firmware: use dev_printk when possible
Convert printks to use dev_printk().

Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:47 -07:00
Harvey Harrison
b46f69cd24 char: moxa.c sparse annotation
The only use is to pass this to le16_to_cpu, declare as such
drivers/char/moxa.c:548:11: warning: cast to restricted __le16.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:47 -07:00
Andrew Morton
bc20589bf1 applicom.c: fix apparently-broken code in do_ac_read()
The code scriblles over a local pointer whereas it appears to be trying
to write to the memory at which that pointer points.

Addresses http://bugzilla.kernel.org/show_bug.cgi?id=11397

Nobody we know can test this change.

Reported-by: Zvonimir Rakamaric <zrakamar@cs.ubc.ca>
Cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Jiri Slaby <jirislaby@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:47 -07:00
Jiri Slaby
d05abab9a4 Char: ds1286, eliminate busy waiting
ds1286_get_time(); is not called from atomic context, sleep for 20 ms is
better choice than a (home-made) busy waiting for such a situation.

Signed-off-by: Jiri Slaby <jirislaby@gmail.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:47 -07:00
Alexey Dobriyan
4cea5ceb4c COMPAT_BINFMT_ELF definition tweak
Don't repeat BINFMT_ELF definition, simply multiply COMPAT and BINFMT_ELF.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:47 -07:00
Paul Mundt
5edc2a5123 binfmt_elf_fdpic: wire up AT_EXECFD, AT_EXECFN, AT_SECURE
These auxvec entries are the only ones left unhandled out of the current
base implementation. This syncs up binfmt_elf_fdpic with linux/auxvec.h
and current binfmt_elf.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Paul Mundt
c7637941d1 binfmt_elf_fdpic: convert initial stack alignment to arch_align_stack()
binfmt_elf_fdpic seems to have grabbed a hard-coded hack from an ancient
version of binfmt_elf in order to try and fix up initial stack alignment
on multi-threaded x86, which while in addition to being unused, was also
pushed down beyond the first set of operations on the stack pointer,
negating the entire purpose.

These days, we have an architecture independent arch_align_stack(), so we
switch to using that instead. Move the initial alignment up before the
initial stores while we're at it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Paul Mundt
ec23847d6c binfmt_elf_fdpic: support auxvec base platform string
Commit 483fad1c3f ("ELF loader support for
auxvec base platform string") introduced AT_BASE_PLATFORM, but only
implemented it for binfmt_elf.

Given that AT_VECTOR_SIZE_BASE is unconditionally enlarged for us, and
it's only optionally added in for the platforms that set
ELF_BASE_PLATFORM, wire it up for binfmt_elf_fdpic, too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Randy Dunlap
758222f842 docbook: update procfs credits
Update Erik Mouw's email address & affiliation in DocBook.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Erik Mouw <mouw@nl.linux.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Adrian Bunk
b73c29f6b0 quota: remove CVS keywords
Remove CVS keywords that weren't updated for a long time from comments.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Julien Brunel
67b172c097 fs/reiserfs: use an IS_ERR test rather than a NULL test
In case of error, the function open_xa_dir returns an ERR pointer, but
never returns a NULL pointer.  So a NULL test that comes after an IS_ERR
test should be deleted.

The semantic match that finds this problem is as follows:
(http://www.emn.fr/x-info/coccinelle/)

// <smpl>
@match_bad_null_test@
expression x, E;
statement S1,S2;
@@
x = open_xa_dir(...)
... when != x = E
(
*  if (x == NULL && ...) S1 else S2
|
*  if (x == NULL || ...) S1 else S2
)
// </smpl>

Signed-off-by: Julien Brunel <brunel@diku.dk>
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Jan Kara <jack@ucw.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Adrian Bunk
6b23ea7679 reiserfs/procfs.c: remove CVS keywords
Remove CVS keywords that weren't updated for a long time from comments.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Eric Sesterhenn
d38b7aa7fc hfs: fix namelength memory corruption
Fix a stack corruption caused by a corrupted hfs filesystem.  If the
catalog name length is corrupted the memcpy overwrites the catalog btree
structure.  Since the field is limited to HFS_NAMELEN bytes in the
structure and the file format, we throw an error if it is too long.

Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Eric Sesterhenn
649f1ee6c7 hfsplus: check read_mapping_page() return value
While testing more corrupted images with hfsplus, i came across
one which triggered the following bug:

[15840.675016] BUG: unable to handle kernel paging request at fffffffb
[15840.675016] IP: [<c0116a4f>] kmap+0x15/0x56
[15840.675016] *pde = 00008067 *pte = 00000000
[15840.675016] Oops: 0000 [#1] PREEMPT DEBUG_PAGEALLOC
[15840.675016] Modules linked in:
[15840.675016]
[15840.675016] Pid: 11575, comm: ln Not tainted (2.6.27-rc4-00123-gd3ee1b4-dirty #29)
[15840.675016] EIP: 0060:[<c0116a4f>] EFLAGS: 00010202 CPU: 0
[15840.675016] EIP is at kmap+0x15/0x56
[15840.675016] EAX: 00000246 EBX: fffffffb ECX: 00000000 EDX: cab919c0
[15840.675016] ESI: 000007dd EDI: cab0bcf4 EBP: cab0bc98 ESP: cab0bc94
[15840.675016]  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[15840.675016] Process ln (pid: 11575, ti=cab0b000 task=cab919c0 task.ti=cab0b000)
[15840.675016] Stack: 00000000 cab0bcdc c0231cfb 00000000 cab0bce0 00000800 ca9290c0 fffffffb
[15840.675016]        cab145d0 cab919c0 cab15998 22222222 22222222 22222222 00000001 cab15960
[15840.675016]        000007dd cab0bcf4 cab0bd04 c022cb3a cab0bcf4 cab15a6c ca9290c0 00000000
[15840.675016] Call Trace:
[15840.675016]  [<c0231cfb>] ? hfsplus_block_allocate+0x6f/0x2d3
[15840.675016]  [<c022cb3a>] ? hfsplus_file_extend+0xc4/0x1db
[15840.675016]  [<c022ce41>] ? hfsplus_get_block+0x8c/0x19d
[15840.675016]  [<c06adde4>] ? sub_preempt_count+0x9d/0xab
[15840.675016]  [<c019ece6>] ? __block_prepare_write+0x147/0x311
[15840.675016]  [<c0161934>] ? __grab_cache_page+0x52/0x73
[15840.675016]  [<c019ef4f>] ? block_write_begin+0x79/0xd5
[15840.675016]  [<c022cdb5>] ? hfsplus_get_block+0x0/0x19d
[15840.675016]  [<c019f22a>] ? cont_write_begin+0x27f/0x2af
[15840.675016]  [<c022cdb5>] ? hfsplus_get_block+0x0/0x19d
[15840.675016]  [<c0139ebe>] ? tick_program_event+0x28/0x4c
[15840.675016]  [<c013bd35>] ? trace_hardirqs_off+0xb/0xd
[15840.675016]  [<c022b723>] ? hfsplus_write_begin+0x2d/0x32
[15840.675016]  [<c022cdb5>] ? hfsplus_get_block+0x0/0x19d
[15840.675016]  [<c0161988>] ? pagecache_write_begin+0x33/0x107
[15840.675016]  [<c01879e5>] ? __page_symlink+0x3c/0xae
[15840.675016]  [<c019ad34>] ? __mark_inode_dirty+0x12f/0x137
[15840.675016]  [<c0187a70>] ? page_symlink+0x19/0x1e
[15840.675016]  [<c022e6eb>] ? hfsplus_symlink+0x41/0xa6
[15840.675016]  [<c01886a9>] ? vfs_symlink+0x99/0x101
[15840.675016]  [<c018a2f6>] ? sys_symlinkat+0x6b/0xad
[15840.675016]  [<c018a348>] ? sys_symlink+0x10/0x12
[15840.675016]  [<c01038bd>] ? sysenter_do_call+0x12/0x31
[15840.675016]  =======================
[15840.675016] Code: 00 00 75 10 83 3d 88 2f ec c0 02 75 07 89 d0 e8 12 56 05 00 5d c3 55 ba 06 00 00 00 89 e5 53 89 c3 b8 3d eb 7e c0 e8 16 74 00 00 <8b> 03 c1 e8 1e 69 c0 d8 02 00 00 05 b8 69 8e c0 2b 80 c4 02 00
[15840.675016] EIP: [<c0116a4f>] kmap+0x15/0x56 SS:ESP 0068:cab0bc94
[15840.675016] ---[ end trace 4fea40dad6b70e5f ]---

This happens because the return value of read_mapping_page() is passed on
to kmap unchecked.  The bug is triggered after the first
read_mapping_page() in hfsplus_block_allocate(), this patch fixes all
three usages in this functions but leaves the ones further down in the
file unchanged.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Eric Sesterhenn
efc7ffcb42 hfsplus: fix Buffer overflow with a corrupted image
When an hfsplus image gets corrupted it might happen that the catalog
namelength field gets b0rked.  If we mount such an image the memcpy() in
hfsplus_cat_build_key_uni() writes more than the 255 that fit in the name
field.  Depending on the size of the overwritten data, we either only get
memory corruption or also trigger an oops like this:

[  221.628020] BUG: unable to handle kernel paging request at c82b0000
[  221.629066] IP: [<c022d4b1>] hfsplus_find_cat+0x10d/0x151
[  221.629066] *pde = 0ea29163 *pte = 082b0160
[  221.629066] Oops: 0002 [#1] PREEMPT DEBUG_PAGEALLOC
[  221.629066] Modules linked in:
[  221.629066]
[  221.629066] Pid: 4845, comm: mount Not tainted (2.6.27-rc4-00123-gd3ee1b4-dirty #28)
[  221.629066] EIP: 0060:[<c022d4b1>] EFLAGS: 00010206 CPU: 0
[  221.629066] EIP is at hfsplus_find_cat+0x10d/0x151
[  221.629066] EAX: 00000029 EBX: 00016210 ECX: 000042c2 EDX: 00000002
[  221.629066] ESI: c82d70ca EDI: c82b0000 EBP: c82d1bcc ESP: c82d199c
[  221.629066]  DS: 007b ES: 007b FS: 0000 GS: 0033 SS: 0068
[  221.629066] Process mount (pid: 4845, ti=c82d1000 task=c8224060 task.ti=c82d1000)
[  221.629066] Stack: c080b3c4 c82aa8f8 c82d19c2 00016210 c080b3be c82d1bd4 c82aa8f0 00000300
[  221.629066]        01000000 750008b1 74006e00 74006900 65006c00 c82d6400 c013bd35 c8224060
[  221.629066]        00000036 00000046 c82d19f0 00000082 c8224548 c8224060 00000036 c0d653cc
[  221.629066] Call Trace:
[  221.629066]  [<c013bd35>] ? trace_hardirqs_off+0xb/0xd
[  221.629066]  [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b
[  221.629066]  [<c013bd35>] ? trace_hardirqs_off+0xb/0xd
[  221.629066]  [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b
[  221.629066]  [<c013bd35>] ? trace_hardirqs_off+0xb/0xd
[  221.629066]  [<c0107aa3>] ? native_sched_clock+0x82/0x96
[  221.629066]  [<c01302d2>] ? __kernel_text_address+0x1b/0x27
[  221.629066]  [<c010487a>] ? dump_trace+0xca/0xd6
[  221.629066]  [<c0109e32>] ? save_stack_address+0x0/0x2c
[  221.629066]  [<c0109eaf>] ? save_stack_trace+0x1c/0x3a
[  221.629066]  [<c013b571>] ? save_trace+0x37/0x8d
[  221.629066]  [<c013b62e>] ? add_lock_to_list+0x67/0x8d
[  221.629066]  [<c013ea1c>] ? validate_chain+0x8a4/0x9f4
[  221.629066]  [<c013553d>] ? down+0xc/0x2f
[  221.629066]  [<c013f1f6>] ? __lock_acquire+0x68a/0x6e0
[  221.629066]  [<c013bd35>] ? trace_hardirqs_off+0xb/0xd
[  221.629066]  [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b
[  221.629066]  [<c013bd35>] ? trace_hardirqs_off+0xb/0xd
[  221.629066]  [<c0107aa3>] ? native_sched_clock+0x82/0x96
[  221.629066]  [<c013da5d>] ? mark_held_locks+0x43/0x5a
[  221.629066]  [<c013dc3a>] ? trace_hardirqs_on+0xb/0xd
[  221.629066]  [<c013dbf4>] ? trace_hardirqs_on_caller+0xf4/0x12f
[  221.629066]  [<c06abec8>] ? _spin_unlock_irqrestore+0x42/0x58
[  221.629066]  [<c013555c>] ? down+0x2b/0x2f
[  221.629066]  [<c022aa68>] ? hfsplus_iget+0xa0/0x154
[  221.629066]  [<c022b0b9>] ? hfsplus_fill_super+0x280/0x447
[  221.629066]  [<c0107aa3>] ? native_sched_clock+0x82/0x96
[  221.629066]  [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b
[  221.629066]  [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b
[  221.629066]  [<c013f1f6>] ? __lock_acquire+0x68a/0x6e0
[  221.629066]  [<c041c9e4>] ? string+0x2b/0x74
[  221.629066]  [<c041cd16>] ? vsnprintf+0x2e9/0x512
[  221.629066]  [<c010487a>] ? dump_trace+0xca/0xd6
[  221.629066]  [<c0109eaf>] ? save_stack_trace+0x1c/0x3a
[  221.629066]  [<c0109eaf>] ? save_stack_trace+0x1c/0x3a
[  221.629066]  [<c013b571>] ? save_trace+0x37/0x8d
[  221.629066]  [<c013b62e>] ? add_lock_to_list+0x67/0x8d
[  221.629066]  [<c013ea1c>] ? validate_chain+0x8a4/0x9f4
[  221.629066]  [<c01354d3>] ? up+0xc/0x2f
[  221.629066]  [<c013f1f6>] ? __lock_acquire+0x68a/0x6e0
[  221.629066]  [<c013bd35>] ? trace_hardirqs_off+0xb/0xd
[  221.629066]  [<c013bca3>] ? trace_hardirqs_off_caller+0x14/0x9b
[  221.629066]  [<c013bd35>] ? trace_hardirqs_off+0xb/0xd
[  221.629066]  [<c0107aa3>] ? native_sched_clock+0x82/0x96
[  221.629066]  [<c041cfb7>] ? snprintf+0x1b/0x1d
[  221.629066]  [<c01ba466>] ? disk_name+0x25/0x67
[  221.629066]  [<c0183960>] ? get_sb_bdev+0xcd/0x10b
[  221.629066]  [<c016ad92>] ? kstrdup+0x2a/0x4c
[  221.629066]  [<c022a7b3>] ? hfsplus_get_sb+0x13/0x15
[  221.629066]  [<c022ae39>] ? hfsplus_fill_super+0x0/0x447
[  221.629066]  [<c0183583>] ? vfs_kern_mount+0x3b/0x76
[  221.629066]  [<c0183602>] ? do_kern_mount+0x32/0xba
[  221.629066]  [<c01960d4>] ? do_new_mount+0x46/0x74
[  221.629066]  [<c0196277>] ? do_mount+0x175/0x193
[  221.629066]  [<c013dbf4>] ? trace_hardirqs_on_caller+0xf4/0x12f
[  221.629066]  [<c01663b2>] ? __get_free_pages+0x1e/0x24
[  221.629066]  [<c06ac07b>] ? lock_kernel+0x19/0x8c
[  221.629066]  [<c01962e6>] ? sys_mount+0x51/0x9b
[  221.629066]  [<c01962f9>] ? sys_mount+0x64/0x9b
[  221.629066]  [<c01038bd>] ? sysenter_do_call+0x12/0x31
[  221.629066]  =======================
[  221.629066] Code: 89 c2 c1 e2 08 c1 e8 08 09 c2 8b 85 e8 fd ff ff 66 89 50 06 89 c7 53 83 c7 08 56 57 68 c4 b3 80 c0 e8 8c 5c ef ff 89 d9 c1 e9 02 <f3> a5 89 d9 83 e1 03 74 02 f3 a4 83 c3 06 8b 95 e8 fd ff ff 0f
[  221.629066] EIP: [<c022d4b1>] hfsplus_find_cat+0x10d/0x151 SS:ESP 0068:c82d199c
[  221.629066] ---[ end trace e417a1d67f0d0066 ]---

Since hfsplus_cat_build_key_uni() returns void and only has one callsite,
the check is performed at the callsite.

Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de>
Reviewed-by: Pekka Enberg <penberg@cs.helsinki.fi>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Mike Crowe
81a73719d1 hfsplus: quieten down mounting hfsplus journaled fs read only
Check whether the file system was to be mounted read only anyway before
warning about changing the mount to read only.

Signed-off-by: Mike Crowe <mac@mcrowe.com>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Harvey Harrison
152b95a1ed befs: annotate fs32 on tests for superblock endianness
Does compile-time byteswapping rather than runtime.

Noticed by sparse:
fs/befs/super.c:29:6: warning: cast to restricted __le32
fs/befs/super.c:29:6: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/super.c:31:11: warning: cast to restricted __be32
fs/befs/super.c:31:11: warning: cast from restricted fs32
fs/befs/linuxvfs.c:811:7: warning: cast to restricted __le32
fs/befs/linuxvfs.c:811:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32
fs/befs/linuxvfs.c:812:7: warning: cast to restricted __be32
fs/befs/linuxvfs.c:812:7: warning: cast from restricted fs32

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "Sergey S. Kostyliov" <rathamahata@php4.ru>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Eric Sandeen
bd39597cbd ext2: avoid printk floods in the face of directory corruption
A very large directory with many read failures (either due to storage
problems, or due to invalid size & blocks from corruption) will generate a
printk storm as the filesystem continues to try to read all the blocks.
This flood of messages can tie up the box until it is complete - which may
be a very long time, especially for very large corrupted values.

This is fixed by only reporting the corruption once each time we try to
read the directory.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Eugene Teo <eugeneteo@kernel.sg>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:46 -07:00
Mingming Cao
d707d31c97 ext2: fix ext2 block reservation early ENOSPC issue
We could run into ENOSPC error on ext2, even when there is free blocks on
the filesystem.

The problem is triggered in the case the goal block group has 0 free
blocks , and the rest block groups are skipped due to the check of
"free_blocks < windowsz/2".  Current code could fall back to non
reservation allocation to prevent early ENOSPC after examing all the block
groups with reservation on , but this code was bypassed if the reservation
window is turned off already, which is true in this case.

This patch fixed two issues:
1) We don't need to turn off block reservation if the goal block group has
0 free blocks left and continue search for the rest of block groups.

Current code the intention is to turn off the block reservation if the
goal allocation group has a few (some) free blocks left (not enough for
make the desired reservation window),to try to allocation in the goal
block group, to get better locality.  But if the goal blocks have 0 free
blocks, it should leave the block reservation on, and continues search for
the next block groups,rather than turn off block reservation completely.

2) we don't need to check the window size if the block reservation is off.

The problem was originally found and fixed in ext4.

Signed-off-by: Mingming Cao <cmm@us.ibm.com>
Cc: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Adrian Bunk
60836eb63b telephony: remove CVS keywords
Remove CVS keywords that weren't updated for a long time from comments.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Rene Herman
b563cf59c4 pnp: make the resource type an unsigned long
PnP encodes the resource type directly as its struct resource->flags value
which is an unsigned long.  Make it so...

Signed-off-by: Rene Herman <rene.herman@gmail.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Cc: Andi Kleen <andi@firstfloor.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Adrian Bunk
a63cc18f02 pnp: remove printk() with outdated version
There's no point in printing some ancient version number forever.

Signed-off-by: Adrian Bunk <bunk@kernel.org>
Acked-by: Rene Herman <rene.herman@gmail.com>
Acked-by: Bjorn Helgaas <bjorn.helgaas@hp.com>
Acked-by: Adam M Belay <abelay@MIT.EDU>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Oleg Nesterov
232fb69a53 fbcon_set_all_vcs: fix kernel crash when switching the rotated consoles
echo 3 >> /sys/class/graphics/fbcon/rotate_all, then switch to another
console. Result:

	BUG: unable to handle kernel paging request at ffffc20005d00000
	IP: [bitfill_aligned+149/265] bitfill_aligned+0x95/0x109
	PGD 7e228067 PUD 7e229067 PMD 7bc1f067 PTE 0
	Oops: 0002 [1] SMP
	CPU 1
	Modules linked in: [...a lot...]
	Pid: 10, comm: events/1 Not tainted 2.6.26.5-45.fc9.x86_64 #1
	RIP: 0010:[bitfill_aligned+149/265]  [bitfill_aligned+149/265] bitfill_aligned+0x95/0x109
	RSP: 0018:ffff81007d811bc8  EFLAGS: 00010216
	RAX: ffffc20005d00000 RBX: 0000000000000000 RCX: 0000000000000400
	RDX: 0000000000000000 RSI: ffffc20005d00000 RDI: ffffffffffffffff
	RBP: ffff81007d811be0 R08: 0000000000000400 R09: 0000000000000040
	R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000010000
	R13: ffffffff811632f0 R14: 0000000000000006 R15: ffff81007cb85400
	FS:  0000000000000000(0000) GS:ffff81007e004780(0000) knlGS:0000000000000000
	CS:  0010 DS: 0018 ES: 0018 CR0: 000000008005003b
	CR2: ffffc20005d00000 CR3: 0000000000201000 CR4: 00000000000006e0
	DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
	DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
	Process events/1 (pid: 10, threadinfo ffff81007d810000, task ffff81007d808000)
	Stack:  ffff81007c9d75a0 0000000000000000 0000000000000000 ffff81007d811c80
	 ffffffff81163a61 ffff810000000000 ffffffff8115f9c8 0000001000000000
	 0000000100aaaaaa 000000007cd0d4a0 fffffd8a00000800 0001000000000000
	Call Trace:
	 [cfb_fillrect+523/798] cfb_fillrect+0x20b/0x31e
	 [soft_cursor+416/436] ? soft_cursor+0x1a0/0x1b4
	 [ccw_clear_margins+205/263] ccw_clear_margins+0xcd/0x107
	 [fbcon_clear_margins+59/61] fbcon_clear_margins+0x3b/0x3d
	 [fbcon_switch+1291/1466] fbcon_switch+0x50b/0x5ba
	 [redraw_screen+261/481] redraw_screen+0x105/0x1e1
	 [ccw_cursor+0/1869] ? ccw_cursor+0x0/0x74d
	 [complete_change_console+48/190] complete_change_console+0x30/0xbe
	 [change_console+115/120] change_console+0x73/0x78
	 [console_callback+0/292] ? console_callback+0x0/0x124
	 [console_callback+97/292] console_callback+0x61/0x124
	 [schedule_delayed_work+25/30] ? schedule_delayed_work+0x19/0x1e
	 [run_workqueue+139/282] run_workqueue+0x8b/0x11a
	 [worker_thread+221/238] worker_thread+0xdd/0xee
	 [autoremove_wake_function+0/56] ? autoremove_wake_function+0x0/0x38
	 [worker_thread+0/238] ? worker_thread+0x0/0xee
	 [kthread+73/118] kthread+0x49/0x76
	 [child_rip+10/18] child_rip+0xa/0x12
	 [kthread+0/118] ? kthread+0x0/0x76
	 [child_rip+0/18] ? child_rip+0x0/0x12

Because fbcon_set_all_vcs()->FBCON_SWAP() uses display->rotate == 0 instead
of fbcon_ops->rotate, and vc_resize() has no effect because it is called with
new_cols/rows == ->vc_cols/rows.

Tested on 2.6.26.5-45.fc9.x86_64, but
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git seems to
have the same problem.

Signed-off-by: Oleg Nesterov <oleg@tv-sign.ru>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: <stable@kernel.org>	[2.6.27.x, 2.6.26.x, maybe 2.6.25.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Dmitry Baryshkov
b53cde3557 fbdev: add new TMIO framebuffer driver
Add driver for TMIO framebuffer cells as found e.g. in Toshiba TC6393XB
chips.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Cc: Ian Molton <spyro@f2s.com>
Acked-by: Samuel Ortiz <sameo@openedhand.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Kristoffer Ericson
d5ca900603 fbdev: Epson S1D1 framebuffer maintainer
I'm stepping up as maintainer for the Epson S1D13XXXFB driver since I have
2 platforms currently using it.

Signed-off-by: Kristoffer Ericson <Kristoffer.Ericson@gmail.com>
Acked-by: Thibaut Varene <varenet@parisc-linux.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Randy Dunlap
313cc59eac framebuffer: fix carminefb section mismatch
Make alloc_carmine_fb() __devinit.

WARNING: drivers/video/carminefb.o(.text+0x81b): Section mismatch in reference from the function alloc_carmine_fb() to the variable .devinit.data:carminefb_fix

The function alloc_carmine_fb() references the variable __devinitdata
carminefb_fix.  This is often because alloc_carmine_fb lacks a
__devinitdata annotation or the annotation of carminefb_fix is wrong.

Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Cc: Sebastian Siewior <bigeasy@linutronix.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Darrick J. Wong
e3a1938805 matroxfb: support G200eV chip
Support the Matrox G200eV chip, based on timings that I found in the X.org
matrox driver.

Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Petr Vandrovec <vandrove@vc.cvut.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Kristoffer Ericson
0b178883b3 fbdev: allow more chip revisions in Epson s1d13... video driver
The Epson s1d13xxx hardware is common in many handhelds, but our driver is
currently locked to a single chip revision.  This patch adds an array of
known to work revisions (which can be extended).

[akpm@linux-foundation.org: cleanups]
Signed-off-by: Kristoffer Ericson <Kristoffer.Ericson@gmail.com>
Acked-by: Thibaut Varène <varenet@parisc-linux.org>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Michal Januszewski
4d31a2b74c fbdev: ignore VESA modes if framebuffer does not support them
Currently, it is possible to set a graphics VESA mode at boot time via the
vga= parameter even when no framebuffer driver supporting this is
configured.  This could lead to the system booting with a black screen,
without a usable console.

Fix this problem by only allowing to set graphics modes at boot time if a
supporting framebuffer driver is configured.

Signed-off-by: Michal Januszewski <spock@gentoo.org>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Marcin Slusarz
5ab4840968 vgacon: vgacon_scrolldelta simplification
There's no point in checking diff == c->vc_rows, because it can be true
only when count == 0, but we already checked that.  Additionally move
variables used only in one block to this block.

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Antonino Daplas <adaplas@gmail.com>
Acked-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Marcin Slusarz
c38182a713 vgacon: optimize scrolling
Join multiple scr_memcpyw into 1-3 calls (usually 2).  (benchmarked
average speedup: 1%)

Signed-off-by: Marcin Slusarz <marcin.slusarz@gmail.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Antonino Daplas <adaplas@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:45 -07:00
Jon Dufresne
1a3b09dc9a fbmon: fix EDID parser to detect interlace modes
The current EDID parser in the linux kernel ignores interlace modes.  The
patch looks for the edid interlace flag and adjusts the vertical
resolution if it is found.

Signed-off-by: Jon Dufresne <jon.dufresne@gmail.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Michal Januszewski
c1fd1c0764 MAINTAINERS: add entry for uvesafb
Add a maintainer entry for the uvesafb driver.

Signed-off-by: Michal Januszewski <spock@gentoo.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Michal Januszewski
9350cc90ca uvesafb: don't treat mode info retrieval failures as errors
Some BIOSes return error codes when queried for information about
modes from their own modelist.  uvesafb treats this as an error
case and bails out.

Change this behavior so that broken modes do not prevent the driver
from working.  Only the failure to retrieve information about any
usable video mode is considered to be an error case.

Signed-off-by: Michal Januszewski <spock@gentoo.org>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Mike Pagano
c0dd504cea uvesafb: document mode to mode_option parameter change
Document the change from the old "mode" parameter to the "mode_option"
parameter.

Signed-off-by: Mike Pagano <mpagano@gentoo.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Benjamin Herrenschmidt
b1ee26bab1 radeonfb: accelerate imageblit and other improvements
Implement support for HW color expansion of 1bpp images, along with some
improvements to the FIFO handling and other accel operations.

The offset fixup code is now unnecessary as the fbcon core will call our
set_par upon switch back from KD_GRAPHICS before anything else happens.  I
removed it as it would slow down accel operations.

The fifo wait has been improved to avoid hitting the HW register as often,
and the various accel ops are now performing better caching of register
values.

Overall, this improve accel performances.  The imageblit acceleration does
result in a small overall regression in performances on some machines (on
the order of 5% on some x86), probably becaus the SW path provides a
better bus utilisation, but I decided to ingnore that as the performances
is still very good, and on the other hand, some machines such as some
sparc64 get a 3 fold performance improvement.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Benjamin Herrenschmidt
a6c0c37db6 radeonfb: misc cleanup of engine and dst cache handling
Fix a couple of incomplete tests of the chip families in the engine
init/reset code and proper initialization of the destination cache mode.
The result should better match what the latest X radeon driver does.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Peter Jones
7c08c9ae0c efifb/imacfb consolidation + hardware support
Remove imacfb entirely, merging its DMI table into the (otherwise very
similar) efifb driver.  This also adds hardware support for many of the
newer Intel Apple hardware.  This has been fairly well tested; we've been
shipping it in Fedora for some time.

Signed-off-by: Peter Jones <pjones@redhat.com>
Cc: Krzysztof Helt <krzysztof.h1@poczta.fm>
Cc: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com>
Cc: Jaya Kumar <jayakumar.lkml@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Stanislaw Gruszka
f928ac0a98 atmel_lcdfb: disallow setting larger resolution than the framebuffer memory can handle
Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Krzysztof Helt
486ff387c0 cirrusfb: do not change MCLK for Alpine chips
A memory clock value (MCLK) is changed to a minimum required by a current
mode bandwidth.  This usually lowers the MCLK to its minimum (50 MHz) thus
decreasing the card performance.  Just leave the MCLK value set by card
BIOS.

The CL-GD5446 Technical Reference Manual point 9.9.1.3 states that if a
pixclock value is close (~1%) to the MCLK or MCLK/2 this may result in a
jitter on the screen.  A countermeasure is to use the MCLK as pixclock
source instead of a VCLK.  The patch implements this as well.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Krzysztof Helt
3b921832d4 cirrusfb: fix 16bpp modes
The 16bpp mode did not work on the Cirrus cards as the visual type was set
to DIRECTCOLOR instead of TRUECOLOR.  The Alpine family used one incorrect
register setting so this 16bpp modes generated wrong horizontal frequency.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Krzysztof Helt
55a0dd83eb cirrusfb: add noaccel module parameter
The noaccel parameter is already handled if the driver is not built as
module.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Krzysztof Helt
dafa32c5a1 cirrusfb: drop clock fields from cirrusfb_regs structure
Move call to pixclock calculation into the cirrusfb_set_par_foo().  It
makes copy of clock registers redundant.

Simplify clock calculations further.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Krzysztof Helt
9a85cf51fb cirrusfb: eliminate CRT registers from global structure
Move calculations of CRT register values into the cirrusfb_set_par_foo()
where the values are used.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:44 -07:00
Krzysztof Helt
c395d3e8c7 cirrusfb: add __devinit attribute to probing functions
Add __devinit attribute to probing functions.  This fixed section mismatch
warning from my previous patch.

Kill one redundant forward declaration.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:43 -07:00
Krzysztof Helt
a1d35a7a50 cirrusfb: use modedb and add mode_option parameter
Use modedb for initial mode instead of table of few predefined modes.

Add mode_option module parameter as a step toward unification of frame
buffers' parameters.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:43 -07:00
Krzysztof Helt
64beab14f5 cirrusfb: drop device pointers from cirrusfb_info
The device pointer can be easily obtained from fb_info->device if needed.

Signed-off-by: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-16 11:21:43 -07:00