- 31 Aug, 2004 40 commits
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Alexander Viro authored
Sigh... a) mixing of userland and kernel pointers is bad b) so's not checking result of kmalloc() c) so's not checking result of copy_from_user() d) use of do { .... break; ... break; ... } while(0); is *highly* unidiomatic. Do not confuse kernel with IOCCC, please. And if you have religious aversion to multiple return statements in a function, at least learn the reasons why it is frowned upon in many situations. Hint: they all apply to use of break in that manner. e) 0 instead of NULL Signed-off-by:Al Viro <viro@parcelfarce.linux.org.uk> Signed-off-by:
Linus Torvalds <torvalds@osdl.org>
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Alexander Viro authored
pci_dma_sync_single_for_device() had wrong prototype [who TF had come up with that name, anyway?] ->cpu in thread_info was long; it should be unsigned int. Signed-off-by:
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Alexander Viro authored
use of __deprecated requires compiler.h Signed-off-by:
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Alexander Viro authored
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Alexander Viro authored
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Linus Torvalds authored
Not only did it mark the wrong driver, Christoph reports that somebody might have even made the driver compile these days.. Cset exclude: hch@lst.de[torvalds]|ChangeSet|20040831174055|41082
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bk://kernel.bkbits.net/davem/net-2.6Linus Torvalds authored
into ppc970.osdl.org:/home/torvalds/v2.6/linux
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Andrew Morton authored
On x86_64: drivers/isdn/hardware/eicon/debug.c: In function `DI_format': drivers/isdn/hardware/eicon/debug.c:599: incompatible types in assignment Signed-off-by:
Andrew Morton <akpm@osdl.org> Signed-off-by:
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Martin Schwidefsky authored
zfcp host adapater changes: - Add ability to enqueue other WKA ports besides the nameserver port. - Document and cleanup sg_list functions. - Add get_port_by_did/get_adapater_by_busid functions. - Improve documentation of some functions and structures. - Fix error handling for nameserver requests. - Correct size check in zfcp_sg_list_copy_to_user. - Correct parameter description for loglevel parameter. - Remove unsused code, types and definitions. - Add support for exchange_port_data command. - Add infrastructure to set timers for ELS and SCSI commands. - Avoid adapter shutdown after receiving FSF_SQ_ULP_PROGRAMMING_ERROR. Signed-off-by:
Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by:
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Martin Schwidefsky authored
This adds support for the new compiler options -mkernel-backchain, -mstack-size, -mstack-guard, -mwarn-dynamicstack and -mwarn-framesize. The option -mkernel-backchain enables the use of modified layout for the stack frames of kernel functions. This breaks the ABI, modules compiled with the option won't work on a kernel compiled with the option and vice versa. The positive effect of the option is a drastic reduction of kernel stack use. The trick is that the new frame layout allows to overlap the 96 (31 bit)/160 (64 bit) byte bias areas of the functions on the call chain. This lowers the minimal stack usage of a function from 96 bytes to 16 bytes (31 bit) and 160 bytes to 24 bytes (64 bit). The kernel stack use is decreased to a point where it is possible to use 4K (31 bit) / 8K (64 bit) stacks. The split into process stack and interrupt stack is already in place. The options -mstack-size and -mstack-guard are used to detect kernel stack overflows. The compiler adds code to the prolog of every function that causes an illegal operation if the kernel stack is about to overflow. The options -mwarn-dynamicstack and -mwarn-framesize cause the compiler to emit warnings if a function uses dynamic stack allocation or if the function frame size is bigger then a specified limit. To play safe all the new options are configurable. Signed-off-by:
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Martin Schwidefsky authored
s390 core changes: - Fix a race condition between kernel thread creation and preemption. - Fix idal_is_needed for the border case 0x7ffff000. - Get rid of compiler warnings in compat_signal.c and profile.c. - Regenerate default configuration. Signed-off-by:
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Jacek Poplawski authored
Name of device has been changed in 2.6.9-rc1 to "SkyStar2", but module stv0299 still compares name with "Technisat SkyStar2 driver", strings are different, and result is that stv0299 detects invalid tuner type. Cc: Johannes Stezenbach <js@linuxtv.org> Signed-off-by:
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Luiz Capitulino authored
Signed-off-by:
Luiz Capitulino <lcapitulino@conectiva.com.br> Signed-off-by:
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Gerd Knorr authored
Missing sanity check, overlay is supported for packed pixel formats only. Patch below. It's not API related btw, the bug can be triggered using the v4l2 API as well. Signed-off-by:
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Antonino Daplas authored
This patch fixes a problem reported by David S. Miller <davem@redhat.com> "I just noticed that fb_{read,write}() uses copy_*_user() with the kernel buffer being the frame buffer. It needs to use the proper device address accessor functions." The patch will do an intermediate copy of the contents to a page-sized, kmalloc'ed buffer. Signed-off-by:Antonino Daplas <adaplas@pol.net> Signed-off-by:
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Antonino Daplas authored
1. This fixes a kernel oops when issuing an FBIO_CURSOR ioctl if struct fb_cursor_user is filled with zero/NULLs. Reported by Yuval Kogman <nothingmuch@woobling.org>. 2. This also fixes the cursor corruption in soft_cursor when sprite.scan_align != 1. Signed-off-by:
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Vegard Wærp authored
Makes the BeOS File Systen driver load the default nls if none is specified in the "iocharset" mount option. Signed-off-by:
Vegard Wærp <vegarwa@online.no> Signed-off-by:
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Christoph Hellwig authored
Seem like devfsd expects it in /dev/cpu/microcode and Debian users do as well. Signed-off-by:
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William Lee Irwin III authored
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Christoph Hellwig authored
It's already marked BROKEN_ON_SMP, but even a UP compile yields tons of errors. While those aren't deeply complicated to fix having them for over a year now is a pretty good indicator no one cares. Signed-off-by:
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Christoph Hellwig authored
There seem to be some crazy mac users that want to use the loop driver on hfsplus. Signed-off-by:
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Ronald Bultje authored
attached patch changes the subfrequency carrier value in the adv7175 video output driver which is part of the zr36067 driver package. The practical consequence is that the picture will be more stable on non-passthrough video mode in NTSC. It does not affect PAL/SECAM. Patch originally submitted by Douglas Fraser <ds-fraser@comcast.net> (8/21). Signed-off-by:
Ronald Bultje <rbultje@ronald.bitfreak.net> Signed-off-by:
Douglas Fraser <ds-fraser@comcast.net> Signed-off-by:
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Ronald Bultje authored
attached patch makes the zr36067 driver use msleep() instead of schedule_timeout() with uninterruptible state. Patch originally submitted by Nishanth Aravamudan <nacc@us.ibm.com> (7/26). Signed-off-by:
Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by:
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Ronald Bultje authored
attached patch correctly makes the zr36067 driver depend on i2c-ago-bit in the kernel config. Bug reported and patch sent to me by Adrian Bunk <bunk@fs.tum.de> (6/21). It wasn't signed off. Signed-off-by:
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Brian Gerst authored
The last attempt to clean this up still left a hardcoded constant (the offset from __FIXADDR_TOP). This patch moves VSYSCALL_BASE to asm-offsets.c. Signed-off-by:
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Joshua Kwan authored
Cc: William Lee Irwin III <wli@holomorphy.com> Signed-off-by:
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Andrew Morton authored
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Ryan S. Arnold authored
This is an hvc_console patch which provides driver and ppc64 architecture fixes to enable the hvc_console driver to register itself as a vio device with the vio bus, provide hotplug add/remove for vty adapters, and act as an interrupt driven driver on Power-5 hardware or remain as a polling driver on Power-4 hardware. arch/ppc64/kernel/hvconsole.c ============================= - Changed hvc_get_chars() and hvc_put_chars() api to take vtermno rather than index number. - Added hvc_find_vtys() function which walks the bus looking for vterm/vty devices to callback to the hvc_console driver. This provides console output functionality prior to early console init (pre mem init and pre device probe). include/asm-ppc64/hvconsole.h ============================= - Changed hvc_get_chars() and hvc_put_chars() api to take vtermno rather than index number. - Added hvc_find_vtys() function. - Added hvc_instantiate() function which is implemented by a console driver wanting to receive a callback of and early console init. drivers/char/hvc_console.c ========================== - Switch khvcd from kernel_threads to kthreads which got rid of deprecated daemonize(). - Added module exit clause to be thorough (not terribly necessary with a console driver of course) - Added early discovery of vterm/vty adapters by doing a bus walk on early console init which results in hvc_instantiate() callback and addition of the vtermno into a static array of vtermnos supported as console adapters (meaning the console api's work against these vtermnos prior to full console initialization). - This driver is now registered as a vio driver which means that vty adapters are now managed via probe/remove. This means hvc_console supports hotplug vty adapters. - Driver now requests more device nodes than what was found on the initial bus walk when registered as a tty driver to make room for hotplug vty adapters. These secondary vty adapters provide a tty tunnel between partitions. - Removed static hvc_struct array and replaced with a linux list that has elements (hvc_struct instances) added/removed on probe/remove AFTER early console init. This is important because kmalloc can't be done at early console init. - Driver now either runs in interrupt driven mode or in polling mode on older hardware. The khvcd is smart enough to not 'schedule()' when there are no interrupts. - kobjects are now used for ref counting on the hvc_struct instances. - This driver puts the tty layer to sleep on hvc_close() if there are pending data writes being blocked by firmware. - Removed useless spinlocks in hvc_chars_in_buffer() and hvc_write_room. Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
Ryan S. Arnold <rsa@us.ibm.com> Signed-off-by:
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Paul Fulghum authored
Bug Fixes: * Fix transmit end of message (EOM) processing to work correctly with hardware auto CTS feature * Fix oops in error path if hardware diags fail during device initialization Cosmetic change: * Use existing macros for address space size instead of hardcoded values Signed-off-by:
Paul Fulghum <paulkf@microgate.com> Signed-off-by:
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David Howells authored
The attached patch fixes a bug introduced into do_generic_mapping_read() by which a file pointer becomes required. I'd arranged things so that the file pointer was optional so that I could call the function directly on an inode. Signed-Off-By:
David Howells <dhowells@redhat.com> Signed-off-by:
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H. Peter Anvin authored
This patch allows i386 signal delivery to work correctly when userspace is compiled with -mregparm. This is somewhat hacky: it passes the arguments *both* on the stack and in registers, but it works because there are only one or three (depending on SA_SIGINFO) official arguments. If you're relying on the unofficial arguments then you're doing something nonportable anyway and can put in the __attribute__((cdecl,regparm(0))) in the correct place. Signed-off-by:
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Jeff Moyer authored
This patch contains the updates necessary to fix the hangs in netconsole. This includes the changing of trapped to an atomic_t, and the addition of a netpoll_poll_lock. It also turns dev->netpoll_rx into a bitfield which is used to keep from running the networking code from the netpoll_poll call path. Signed-off-by:
Jeff Moyer <jmoyer@redhat.com> Signed-off-by:
Matt Mackall <mpm@selenic.com> Signed-off-by:
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Jeff Moyer authored
I've upped the poll budget to 16 and added a comment explaining why. I definitely ran into this problem when testing netdump. Signed-off-by:
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Jeff Moyer authored
This patch removes CONFIG_NETPOLL_RX, as discussed. Signed-off-by:
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Matt Mackall authored
Here's the first of the broken out patch set. This puts the check for netif_queue_stopped back into netpoll_send_skb. Network drivers are not designed to have their hard_start_xmit routines called when the queue is stopped. Signed-off-by:
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Matt Mackall authored
Avoid some alignment traps. Signed-off-by:
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Paolo Ornati authored
drivers/built-in.o(.data+0x40a68): undefined reference to `cfb_fillrect' drivers/built-in.o(.data+0x40a6c): undefined reference to `cfb_copyarea' 3dfx framebuffer driver depends on "cfb_fillrect.c" and "cfb_copyarea.c" if it's compiled without CONFIG_FB_3DFX_ACCEL turned on... Signed-off-by:
Paolo Ornati <ornati@fastwebnet.it> Signed-off-by:
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Andy Whitcroft authored
There are a couple of places where we seem to go round the houses to get the numa node id from a page. We have a macro for this so it seems sensible to use that. Both lookup_node and enqueue_huge_page use page_zone() to locate the zone, that to locate node pgdat_t and that to get the node_id. Its more efficient to use page_to_nid() which gets the nid from the page flags, especially if we are not using the zone for anything else it. Change these to use page_to_nid(). Signed-off-by:
Andy Whitcroft <apw@shadowen.org> Signed-off-by:
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Andy Whitcroft authored
(Comment changes only) The bootmem allocator is initialised before the kernel virtual address space has been fully established. As a result, any allocations which are made before paging_init() has completed may point to invalid kernel addresses. This patch notes this limitation and indicates where the allocator is fully available. Signed-off-by:
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Rusty Russell authored
Don't want to go overboard with the checks, but this is simple and reasonable. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> (modified) Signed-off-by:
Paolo 'Blaisorblade' Giarrusso <blaisorblade_spam@yahoo.it> Signed-off-by:
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