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path: root/drivers/pci/hotplug/cpqphp_core.c
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2014-06-10PCI: Merge multi-line quoted stringsRyan Desfosses
Merge quoted strings that are broken across lines into a single entity. The compiler merges them anyway, but checkpatch complains about it, and merging them makes it easier to grep for strings. No functional change. [bhelgaas: changelog, do the same for everything under drivers/pci] Signed-off-by: Ryan Desfosses <ryan@desfo.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-06-10PCI: Whitespace cleanupRyan Desfosses
Fix various whitespace errors. No functional change. [bhelgaas: fix other similar problems] Signed-off-by: Ryan Desfosses <ryan@desfo.org> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2014-02-12PCI: cpqphp: Fix hex vs decimal typo in cpqhpc_probe()Dan Carpenter
This is a static checker fix and I can't test it, but from the context it definitely looks like hexadecimal 0x20 was intended here instead of decimal 20. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2013-11-14PCI: Fix whitespace, capitalization, and spelling errorsBjorn Helgaas
Fix whitespace, capitalization, and spelling errors. No functional change. I know "busses" is not an error, but "buses" was more common, so I used it consistently. Signed-off-by: Marta Rybczynska <rybczynska@gmail.com> (pci_reset_bridge_secondary_bus()) Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2012-07-16PCI: hotplug: ensure a consistent return value in error caseJulia Lawall
Typically, the return value desired for the failure of a function with an integer return value is a negative integer. In these cases, the return value is sometimes a negative integer and sometimes 0, due to a subsequent initialization of the return variable within the loop. A simplified version of the semantic match that finds this problem is: (http://coccinelle.lip6.fr/) //<smpl> @r exists@ identifier ret; position p; constant C; expression e1,e3,e4; statement S; @@ ret = -C ... when != ret = e3 when any if@p (...) S ... when any if (\(ret != 0\|ret < 0\|ret > 0\) || ...) { ... return ...; } ... when != ret = e3 when any *if@p (...) { ... when != ret = e4 return ret; } //</smpl> [bhelgaas: squashed into one patch] Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
2012-01-13module_param: make bool parameters really bool (drivers & misc)Rusty Russell
module_param(bool) used to counter-intuitively take an int. In fddd5201 (mid-2009) we allowed bool or int/unsigned int using a messy trick. It's time to remove the int/unsigned int option. For this version it'll simply give a warning, but it'll break next kernel version. Acked-by: Mauro Carvalho Chehab <mchehab@redhat.com> Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2011-07-22PCI hotplug: cpqphp: use pci_dev->vendorSergei Shtylyov
The driver reads PCI vendor ID from the PCI configuration register while it is already stored by the PCI subsystem in the 'vendor' field of 'struct pci_dev'... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2011-07-22PCI hotplug: cpqphp: use pci_dev->subsystem_{vendor|device}Sergei Shtylyov
The driver reads PCI subsystem IDs from the PCI configuration registers while they are already stored by the PCI subsystem in the 'subsystem_{vendor|device}' fields of 'struct pci_dev'... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-06-11PCI: hotplug/cpqphp, fix NULL dereferenceJiri Slaby
There are devices out there which are PCI Hot-plug controllers with compaq PCI IDs, but are not bridges, hence have pdev->subordinate NULL. But cpqphp expects the pointer to be non-NULL. Add a check to the probe function to avoid oopses like: BUG: unable to handle kernel NULL pointer dereference at 00000050 IP: [<f82e3c41>] cpqhpc_probe+0x951/0x1120 [cpqphp] *pdpt = 0000000033779001 *pde = 0000000000000000 ... The device here was: 00:0b.0 PCI Hot-plug controller [0804]: Compaq Computer Corporation PCI Hotplug Controller [0e11:a0f7] (rev 11) Subsystem: Compaq Computer Corporation Device [0e11:a2f8] Signed-off-by: Jiri Slaby <jslaby@suse.cz> Cc: Greg KH <greg@kroah.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-05-21Merge branch 'linux-next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6 * 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: (36 commits) PCI: hotplug: pciehp: Removed check for hotplug of display devices PCI: read memory ranges out of Broadcom CNB20LE host bridge PCI: Allow manual resource allocation for PCI hotplug bridges x86/PCI: make ACPI MCFG reserved error messages ACPI specific PCI hotplug: Use kmemdup PM/PCI: Update PCI power management documentation PCI: output FW warning in pci_read/write_vpd PCI: fix typos pci_device_dis/enable to pci_dis/enable_device in comments PCI quirks: disable msi on AMD rs4xx internal gfx bridges PCI: Disable MSI for MCP55 on P5N32-E SLI x86/PCI: irq and pci_ids patch for additional Intel Cougar Point DeviceIDs PCI: aerdrv: trivial cleanup for aerdrv_core.c PCI: aerdrv: trivial cleanup for aerdrv.c PCI: aerdrv: introduce default_downstream_reset_link PCI: aerdrv: rework find_aer_service PCI: aerdrv: remove is_downstream PCI: aerdrv: remove magical ROOT_ERR_STATUS_MASKS PCI: aerdrv: redefine PCI_ERR_ROOT_*_SRC PCI: aerdrv: rework do_recovery PCI: aerdrv: rework get_e_source() ...
2010-05-18PCI hotplug: Use kmemdupJulia Lawall
Use kmemdup when some other buffer is immediately copied into the allocated region. A simplified version of the semantic patch that makes this change is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression from,to,size,flag; statement S; @@ - to = \(kmalloc\|kzalloc\)(size,flag); + to = kmemdup(from,size,flag); if (to==NULL || ...) S - memcpy(to, from, size); // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2010-03-16Fix typos in commentsThomas Weber
[Ss]ytem => [Ss]ystem udpate => update paramters => parameters orginal => original Signed-off-by: Thomas Weber <swirl@gmx.li> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-02-22PCI: Make current and maximum bus speeds part of the PCI coreMatthew Wilcox
Move the max_bus_speed and cur_bus_speed into the pci_bus. Expose the values through the PCI slot driver instead of the hotplug slot driver. Update all the hotplug drivers to use the pci_bus instead of their own data structures. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-16PCI hotplug: remove redundant .owner initializationsKenji Kaneshige
The "owner" field in struct hotplug_slot_ops is initialized by PCI hotplug core. So each hotplug controller driver doesn't need to initialize it. Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Reviewed-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-11PCI Hotplug: cpqphp: clean up accesses to pcibios_get_irq_routing_table()Alex Chiang
Instead of making multiple calls to pcibios_get_irq_routing_table, let's just do it once and save the answer. The reason we were making multiple calls is because we liked to calculate its length and perform some loop over it. Instead of open-coding the length calculation every time, provide it in an inline helper function. Finally, since pci_print_IRQ_route() is used only for debug, let's only do it when cpqhp_debug is set. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-11PCI Hotplug: cpqphp: refactor cpqhp_probeAlex Chiang
Apply DeMorgan's theorem: if ((pdev->revision > 2) || (vendor_id == PCI_VENDOR_ID_INTEL)) turns into if ((pdev->revision <= 2) && (vendor_id != PCI_VENDOR_ID_INTEL)) Now we can bail out early from the function if the controller is not supported. This allows us to un-indent the remainder of the function quite a bit and make it much more readable. Fix up some extra braces, and un-indent the 'case' labels in the switch statement as per CodingStyle. No functional change. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-11PCI Hotplug: cpqphp: eliminate stray bracesAlex Chiang
Clean up style and eliminate superfluous braces and parens. No functional change. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-11PCI Hotplug: cpqphp: remove useless prototypes in cpqphp_core.cAlex Chiang
Impact: refactor Refactor code to follow convention more closely and eliminate the need for some useless prototypes. No functional change. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-11PCI Hotplug: cpqphp: fix comment styleAlex Chiang
Fix up comments from C++ to C-style, wrapping if necessary, etc. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2009-06-11PCI Hotplug: cpqphp: stray whitespace cleanupsAlex Chiang
Clean up all stray whitespace issues, such as trailing whitespace, spaces before tabs, etc. and whatever else vim's c_space_errors highlights in red. Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-12-29x86, pci: move arch/x86/pci/pci.h to arch/x86/include/asm/pci_x86.hJaswinder Singh Rajput
Impact: cleanup Now that arch/x86/pci/pci.h is used in a number of other places as well, move the lowlevel x86 pci definitions into the architecture include files. (not to be confused with the existing arch/x86/include/asm/pci.h file, which provides public details about x86 PCI) Tested on: X86_32_UP, X86_32_SMP and X86_64_SMP Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com> Acked-by: Jesse Barnes <jbarnes@virtuousgeek.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-10-23PCI hotplug: cpqphp: fix kernel NULL pointer dereferenceKenji Kaneshige
The following patch fixes the regression in 2.6.27 that causes kernel NULL pointer dereference at cpqphp driver probe time. This patch should be backported to the .27 stable series. Seems to have been introduced by f46753c5e354b857b20ab8e0fe7b2579831dc369. The root cause of this problem seems that cpqphp driver calls pci_hp_register() wrongly. In current implementation, cpqphp driver passes 'ctrl->pci_dev->subordinate' as a second parameter for pci_hp_register(). But because hotplug slots and it's hotplug controller (exists as a pci funcion) are on the same bus, it should be 'ctrl->pci_dev->bus' instead. Cc: <stable@kernel.org> Tested-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-10-22PCI: cpqphp: stop managing hotplug_slot->nameAlex Chiang
We no longer need to manage our version of hotplug_slot->name since the PCI and hotplug core manage it on our behalf. Now, we simply advise the PCI core of the name that we would like, and let the core take care of the rest. Cc: jbarnes@virtuousgeek.org Cc: kristen.c.accardi@intel.com Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-10-22PCI Hotplug core: add 'name' param pci_hp_register interfaceAlex Chiang
Update pci_hp_register() to take a const char *name parameter. The motivation for this is to clean up the individual hotplug drivers so that each one does not have to manage its own name. The PCI core should be the place where we manage the name. We update the interface and all callsites first, in a "no functional change" manner, and clean up the drivers later. Cc: kristen.c.accardi@intel.com Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Reviewed-by: Matthew Wilcox <willy@linux.intel.com> Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-06-10PCI: introduce pci_slotAlex Chiang
Currently, /sys/bus/pci/slots/ only exposes hotplug attributes when a hotplug driver is loaded, but PCI slots have attributes such as address, speed, width, etc. that are not related to hotplug at all. Introduce pci_slot as the primary data structure and kobject model. Hotplug attributes described in hotplug_slot become a secondary structure associated with the pci_slot. This patch only creates the infrastructure that allows the separation of PCI slot attributes and hotplug attributes. In this patch, the PCI hotplug core remains the only user of this infrastructure, and thus, /sys/bus/pci/slots/ will still only become populated when a hotplug driver is loaded. A later patch in this series will add a second user of this new infrastructure and demonstrate splitting the task of exposing pci_slot attributes from hotplug_slot attributes. - Make pci_slot the primary sysfs entity. hotplug_slot becomes a subsidiary structure. o pci_create_slot() creates and registers a slot with the PCI core o pci_slot_add_hotplug() gives it hotplug capability - Change the prototype of pci_hp_register() to take the bus and slot number (on parent bus) as parameters. - Remove all the ->get_address methods since this functionality is now handled by pci_slot directly. [achiang@hp.com: rpaphp-correctly-pci_hp_register-for-empty-pci-slots] Tested-by: Badari Pulavarty <pbadari@us.ibm.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [akpm@linux-foundation.org: build fix] [akpm@linux-foundation.org: make headers_check happy] [akpm@linux-foundation.org: nuther build fix] [akpm@linux-foundation.org: fix typo in #include] Signed-off-by: Alex Chiang <achiang@hp.com> Signed-off-by: Matthew Wilcox <matthew@wil.cx> Cc: Greg KH <greg@kroah.com> Cc: Kristen Carlson Accardi <kristen.c.accardi@intel.com> Cc: Len Brown <lenb@kernel.org> Acked-by: Kenji Kaneshige <kaneshige.kenji@jp.fujitsu.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
2008-04-20PCI: replace remaining __FUNCTION__ occurrencesHarvey Harrison
__FUNCTION__ is gcc-specific, use __func__ Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-11-28pci hotplug: kernel-doc fixesRandy Dunlap
acpiphp.h: not using kernel-doc, so change /** to /* acpiphp_core.c: lots of kernel-doc cleanups acpiphp_glue.c: lots of kernel-doc cleanups acpiphp_ibm.c: lots of kernel-doc cleanups cpqphp_core.c: lots of kernel-doc cleanups cpqphp_ctrl.c: lots of kernel-doc cleanups fakephp.c: correct kernel-doc notation pciehp_ctrl.c: correct kernel-doc notation rpadlpar_core.c: correct function names & kernel-doc notation rpaphp_core.c: correct kernel-doc notation shpchp_ctrl.c: correct kernel-doc notation Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Cc: Kristen Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-12cpqphp: Use PCI_CLASS_REVISION instead of PCI_REVISION_ID for readAuke Kok
While PCI_CLASS_REVISION and PCI_REVISION_ID are identical, the code here discards the revision content and is only interested in the class number. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Cc: Krosten Accardi <kristen.c.accardi@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2007-10-11i386: move pciThomas Gleixner
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-07-11PCI: Change all drivers to use pci_device->revisionAuke Kok
Instead of all drivers reading pci config space to get the revision ID, they can now use the pci_device->revision member. This exposes some issues where drivers where reading a word or a dword for the revision number, and adding useless error-handling around the read. Some drivers even just read it for no purpose of all. In devices where the revision ID is being copied over and used in what appears to be the equivalent of hotpath, I have left the copy code and the cached copy as not to influence the driver's performance. Compile tested with make all{yes,mod}config on x86_64 and i386. Signed-off-by: Auke Kok <auke-jan.h.kok@intel.com> Acked-by: Dave Jones <davej@redhat.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-10-18PCI Hotplug: move pci_hotplug.h to include/linux/Greg Kroah-Hartman
This makes it possible to build pci hotplug drivers outside of the main kernel tree, and Sam keeps telling me to move local header files to their proper places... Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-07-02[PATCH] irq-flags: pci: Use the new IRQF_ constantsThomas Gleixner
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: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-27[PATCH] 64bit resource: fix up printks for resources in pci core and hotplug ↵Greg Kroah-Hartman
drivers This is needed if we wish to change the size of the resource structures. Based on an original patch from Vivek Goyal <vgoyal@in.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] PCI: kzalloc() conversion in drivers/pciEric Sesterhenn
this patch converts drivers/pci to kzalloc usage. Compile tested with allyes config. Signed-off-by: Eric Sesterhenn <snakebyte@gmx.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-03-23[PATCH] PCI hotplug: convert semaphores to mutexIngo Molnar
semaphore to mutex conversion. the conversion was generated via scripts, and the result was validated automatically via a script as well. build tested with allyesconfig. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-09[PATCH] PCI Hotplug: fix up the sysfs file in the compaq pci hotplug driverGreg Kroah-Hartman
The Compaq PCI Hotplug driver was creating 2 sysfs files that contained nothing but debug information, and had way more than "one value" in them. This patch converts the code to use debugfs for these files instead. Compile tested only. Cc: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-09[PATCH] PCI: Reduce nr of ptr derefs in drivers/pci/hotplug/cpqphp_core.cJesper Juhl
Here's a small patch to reduce the nr of pointer dereferences in drivers/pci/hotplug/cpqphp_core.c Benefits of this patch: - micro speed optimization due to fewer pointer derefs - generated code is slightly smaller - tiny line length and whitespace cleanup - better readability Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2005-10-28[PATCH] cpqphp: add pci_enable_device()Bjorn Helgaas
Add pci_{enable,disable}_device() calls. Without pci_enable_device(), dev->irq is garbage, and cpqphp relies on it. This fixes a problem reported by Bruno Redondi. He reported a flood of ACPI interrupts, that caused kacpid to run 100% of the time: http://bugzilla.kernel.org/show_bug.cgi?id=5312 Signed-off-by: Bjorn Helgaas <bjorn.helgaas@hp.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> drivers/pci/hotplug/cpqphp_core.c | 24 +++++++++++++++++++----- 1 file changed, 19 insertions(+), 5 deletions(-)
2005-06-27[PATCH] cpqphp: fix oops during unload without probeKeith Moore
drivers/pci/hotplug/cpqphp_core.c calls cpqphp_event_start_thread() in one_time_init(), which is called whenever the hardware is probed. Unfortunately, cpqphp_event_stop_thread() is *always* called when the module is unloaded. If the hardware is never probed, then cpqphp_event_stop_thread() tries to manipulate a couple of uninitialized mutexes. Signed-off-by: Keith Moore <keithmo@exmsft.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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!
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