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path: root/drivers/net/wireless/orinoco.h
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2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-08-29[PATCH] orinoco: Don't use "extern inline" on locking functionsPavel Roskin
SPARC architecture has been fixed, so it's no longer needed. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-24[PATCH] orinoco: bump version to 0.15Pavel Roskin
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-24[PATCH] orinoco: simplify 802.3 encapsulation codePavel Roskin
Use skb_pull() to strip the addresses from the original packet. Don't strip protocol bytes. Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2006-04-24[PATCH] orinoco: remove tracing code, it's unusedPavel Roskin
Signed-off-by: Pavel Roskin <proski@gnu.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
2005-11-09[PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reasonOlaf Hering
This patch removes almost all inclusions of linux/version.h. The 3 #defines are unused in most of the touched files. A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is unfortunatly in linux/version.h. There are also lots of #ifdef for long obsolete kernels, this was not touched. In a few places, the linux/version.h include was move to where the LINUX_VERSION_CODE was used. quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'` search pattern: /UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-09-23[PATCH] orinoco: Bump version to 0.15rc3.Pavel Roskin
Signed-off-by: Pavel Roskin <proski@gnu.org> Bump version to 0.15rc3. Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-23[PATCH] orinoco: Annotate endianess of variables and structure members.Pavel Roskin
Signed-off-by: Pavel Roskin <proski@gnu.org> Annotate endianess of variables and structure members. Don't reuse variables for both host-endian and little-endian data. Minor comment changes in affected structures. Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-23[PATCH] orinoco: Remove inneeded system includes.Pavel Roskin
Signed-off-by: Pavel Roskin <proski@gnu.org> Remove inneeded system includes. Most system includes are not needed. In particular, the hardware backends don't need anything network related. Some includes have been moved from local headers to the C files where they are actually used. Includes that have to be in the local headers are no longer from the C sources. Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-09-14[PATCH] orinoco: WE-18 supportPavel Roskin
Author: Jean Tourrilhes <jt@hpl.hp.com> Signed-off-by: Pavel Roskin <proski@gnu.org> Use new Wireless Extension API for wireless stats. Signed-off-by: Jeff Garzik <jgarzik@pobox.com>
2005-06-27wireless/orinoco: remove changelog, bump versionJeff Garzik
2005-06-27[PATCH] orinoco: monitor mode supportChristoph Hellwig
Patch from Pavel Roskin
2005-06-27[PATCH] orinoco: scanning supportChristoph Hellwig
Patch from Pavel Roskin
2005-06-27[PATCH] orinoco: manual roaming for Symbol and IntersilfirmwareChristoph Hellwig
Patch from Pavel Roskin
2005-05-15[PATCH] orinoco: make orinoco_stop() staticChristoph Hellwig
Patch from Pavel Roskin Index: linux-2.6/drivers/net/wireless/orinoco.c ===================================================================
2005-04-16Linux-2.6.12-rc2Linus Torvalds
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!