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* WorkStruct: make allyesconfigDavid Howells2006-11-221-2/+2
| | | | | | Fix up for make allyesconfig. Signed-Off-By: David Howells <dhowells@redhat.com>
* [PATCH] Use linux/io.h instead of asm/io.hMatthew Wilcox2006-10-111-1/+1
| | | | | | | | | In preparation for moving check_signature, change these users from asm/io.h to linux/io.h Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Various drivers' irq handlers: kill dead code, needless castsJeff Garzik2006-10-061-6/+1
| | | | | | | | | | | | | | | | - Eliminate casts to/from void* - Eliminate checks for conditions that never occur. These typically fall into two classes: 1) Checking for 'dev_id == NULL', then it is never called with NULL as an argument. 2) Checking for invalid irq number, when the only caller (the system) guarantees the irq handler is called with the proper 'irq' number argument. Signed-off-by: Jeff Garzik <jeff@garzik.org>
* IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells2006-10-051-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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)
* [SCSI] aha152x: remove static host arrayJames Bottomley2006-09-231-29/+24
| | | | | | | | Fix this driver not to use a static two element host array instead use a list. This should fix panic on multiple eject reinsert of the pcmcia version of this device. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] hide EH backup data outside the scsi_cmndChristoph Hellwig2006-07-091-5/+9
| | | | | | | | | | | | | | | | | Currently struct scsi_cmnd has various fields that are used to backup original data after the corresponding fields have been overridden for EH commands. This means drivers can easily get at it and misuse it. Due to the old_ naming this doesn't happen for most of them, but two that have different names have been used wrong a lot (see previous patch). Another downside is that they unessecarily bloat the scsi_cmnd size. This patch moves them onstack in scsi_send_eh_cmnd to fix those two issues aswell as allowing future EH fixes like moving the EH command submissions to use SG lists like everything else. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] aha152x: stop poking at saved scsi_cmnd membersChristoph Hellwig2006-07-091-6/+23
| | | | | | | | | Stop poking into the old_ & co scsi_cmnd fields that should only be used in the EH code. Untested, but this is required to move ahead with the EH fixes. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] irq-flags: scsi: Use the new IRQF_ constantsThomas Gleixner2006-07-021-2/+2
| | | | | | | | | | Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: James Bottomley <James.Bottomley@steeleye.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge ../linux-2.6James Bottomley2006-03-141-33/+52
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| * [SCSI] aha152x: fix variable use before initialisation and other bugsJürgen E. Fischer2006-02-281-33/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | - change interface of the reset functions from Scsi_Cmnd to Scsi_Host. - add functions with the original interface and rename the new functions to reflect the new interface. - call these from the pcmcia driver, thereby avoiding the need to construct a (broken) Scsi_Cmnd from a Scsi_Host. - just run the bh if the interrupt is from the controller and if so ensure that it's only called once per interrupt. Signed-off-by: Juergen E. Fischer <fischer@linux-buechse.de> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* | [SCSI] Add spi_populate_*_msg functionsMatthew Wilcox2006-02-271-6/+1
|/ | | | | | | | | | | | Introduce new helpers: - spi_populate_width_msg() - spi_populate_sync_msg() - spi_populate_ppr_msg() and use them in drivers which already enable the SPI transport. Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] Rename scsi_print_msg to spi_print_msgMatthew Wilcox2005-12-151-3/+4
| | | | | | | | Rename scsi_print_msg to spi_print_msg and move its prototype from scsi_dbg.h to scsi_transport_spi.h Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] remove Scsi_Host_Template typedefChristoph Hellwig2005-11-091-2/+2
| | | | Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] use sfoo_printk() in driversJeff Garzik2005-10-281-2/+1
| | | | | Rejections fixed up and Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [SCSI] allow sleeping in ->eh_device_reset_handler()Jeff Garzik2005-06-171-2/+0
| | | | Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* [PATCH] remove outdated print_* functions2005-04-181-8/+9
| | | | | | | We have the scsi_print_* functions in the proper namespace for a long time now and there weren't a lot users left. Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
* Linux-2.6.12-rc2v2.6.12-rc2Linus Torvalds2005-04-161-0/+3982
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!
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