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2010-08-05module: add load_infoLinus Torvalds1-103/+125
Btw, here's a patch that _looks_ large, but it really pretty trivial, and sets things up so that it would be way easier to split off pieces of the module loading. The reason it looks large is that it creates a "module_info" structure that contains all the module state that we're building up while loading, instead of having individual variables for all the indices etc. So the patch ends up being large, because every "symindex" access instead becomes "info.index.sym" etc. That may be a few characters longer, but it then means that we can just pass a pointer to that "info" structure around. and let all the pieces fill it in very naturally. As an example of that, the patch also moves the initialization of all those convenience variables into a "setup_module_info()" function. And at this point it really does become very natural to start to peel off some of the error labels and move them into the helper functions - now the "truncated" case is gone, and is handled inside that setup function instead. So maybe you don't like this approach, and it does make the variable accesses a bit longer, but I don't think unreadably so. And the patch really does look big and scary, but there really should be absolutely no semantic changes - most of it was a trivial and mindless rename. In fact, it was so mindless that I on purpose kept the existing helper functions looking like this: - err = check_modinfo(mod, sechdrs, infoindex, versindex); + err = check_modinfo(mod, info.sechdrs, info.index.info, info.index.vers); rather than changing them to just take the "info" pointer. IOW, a second phase (if you think the approach is ok) would change that calling convention to just do err = check_modinfo(mod, &info); (and same for "layout_sections()", "layout_symtabs()" etc.) Similarly, while right now it makes things _look_ bigger, with things like this: versindex = find_sec(hdr, sechdrs, secstrings, "__versions"); becoming info->index.vers = find_sec(info->hdr, info->sechdrs, info->secstrings, "__versions"); in the new "setup_module_info()" function, that's again just a result of it being a search-and-replace patch. By using the 'info' pointer, we could just change the 'find_sec()' interface so that it ends up being info->index.vers = find_sec(info, "__versions"); instead, and then we'd actually have a shorter and more readable line. So for a lot of those mindless variable name expansions there's would be room for separate cleanups. I didn't move quite everything in there - if we do this to layout_symtabs, for example, we'd want to move the percpu, symoffs, stroffs, *strmap variables to be fields in that module_info structure too. But that's a much smaller patch, I moved just the really core stuff that is currently being set up and used in various parts. But even in this rough form, it removes close to 70 lines from that function (but adds 22 lines overall, of course - the structure definition, the helper function declarations and call-sites etc etc). Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: Rusty Russell <[email protected]>
2010-08-05module: reduce stack usage for each_symbol()Linus Torvalds1-1/+1
And now that I'm looking at that call-chain (to see if it would make sense to use some other more specific lock - doesn't look like it: all the readers are using RCU and this is the only writer), I also give you this trivial one-liner. It changes each_symbol() to not put that constant array on the stack, resulting in changing movq $C.388.31095, %rsi #, tmp85 subq $376, %rsp #, movq %rdi, %rbx # fn, fn leaq -208(%rbp), %rdi #, tmp84 movq %rbx, %rdx # fn, rep movsl xorl %esi, %esi # leaq -208(%rbp), %rdi #, tmp87 movq %r12, %rcx # data, call each_symbol_in_section.clone.0 # into xorl %esi, %esi # subq $216, %rsp #, movq %rdi, %rbx # fn, fn movq $arr.31078, %rdi #, call each_symbol_in_section.clone.0 # which is not so much about being obviously shorter and simpler because we don't unnecessarily copy that constant array around onto the stack, but also about having a much smaller stack footprint (376 vs 216 bytes - see the update of 'rsp'). Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: Rusty Russell <[email protected]>
2010-08-05module: refactor load_module part 5Rusty Russell1-76/+106
1) Extract out the relocation loop into apply_relocations 2) Extract license and version checks into check_module_license_and_versions 3) Extract icache flushing into flush_module_icache 4) Move __obsparm warning into find_module_sections 5) Move license setting into check_modinfo. Signed-off-by: Rusty Russell <[email protected]>
2010-08-05module: refactor load_module part 4Rusty Russell1-17/+15
Allocate references inside module_unload_init(), clean up inside module_unload_free(). This version fixed to do allocation before __this_cpu_write, thanks to bug reports from linux-next from Dave Young <[email protected]> and Stephen Rothwell <[email protected]>. Signed-off-by: Rusty Russell <[email protected]>
2010-08-05module: refactor load_module part 3Rusty Russell1-47/+75
Extract out the allocation and copying in from userspace, and the first set of modinfo checks. Signed-off-by: Rusty Russell <[email protected]>
2010-08-05module: refactor load_module part 2Linus Torvalds1-57/+72
Here's a second one. It's slightly less trivial - since we now have error cases - and equally untested so it may well be totally broken. But it also cleans up a bit more, and avoids one of the goto targets, because the "move_module()" helper now does both allocations or none. Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: Rusty Russell <[email protected]>
2010-08-05module: refactor load_moduleLinus Torvalds1-61/+69
I'd start from the trivial stuff. There's a fair amount of straight-line code that just makes the function hard to read just because you have to page up and down so far. Some of it is trivial to just create a helper function for. Signed-off-by: Linus Torvalds <[email protected]> Signed-off-by: Rusty Russell <[email protected]>
2010-08-05module: module_unload_init() cleanupEric Dumazet1-6/+0
No need to clear mod->refptr in module_unload_init(), since alloc_percpu() already clears allocated chunks. Signed-off-by: Eric Dumazet <[email protected]> Signed-off-by: Rusty Russell <[email protected]> (removed unused var)
2010-08-05agp: intel-agp: do not use PCI resources before pci_enable_device()Kulikov Vasiliy1-11/+11
IRQ and resource[] may not have correct values until after PCI hotplug setup occurs at pci_enable_device() time. The semantic match that finds this problem is as follows: // <smpl> @@ identifier x; identifier request ~= "pci_request.*|pci_resource.*"; @@ ( * x->irq | * x->resource | * request(x, ...) ) ... *pci_enable_device(x) // </smpl> Signed-off-by: Kulikov Vasiliy <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2010-08-05agp: efficeon-agp: do not use PCI resources before pci_enable_device()Kulikov Vasiliy1-11/+11
IRQ and resource[] may not have correct values until after PCI hotplug setup occurs at pci_enable_device() time. The semantic match that finds this problem is as follows: // <smpl> @@ identifier x; identifier request ~= "pci_request.*|pci_resource.*"; @@ ( * x->irq | * x->resource | * request(x, ...) ) ... *pci_enable_device(x) // </smpl> Signed-off-by: Kulikov Vasiliy <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2010-08-05drm: kill BKL from common codeArnd Bergmann9-46/+75
This restricts the use of the big kernel lock to the i830 and i810 device drivers. The three remaining users in common code (open, ioctl and release) get converted to a new mutex, the drm_global_mutex, making the locking stricter than the big kernel lock. This may have a performance impact, but only in those cases that currently don't use DRM_UNLOCKED flag in the ioctl list and would benefit from that anyway. The reason why i810 and i830 cannot use drm_global_mutex in their mmap functions is a lock-order inversion problem between the current use of the BKL and mmap_sem in these drivers. Since the BKL has release-on-sleep semantics, it's harmless but it would cause trouble if we replace the BKL with a mutex. Instead, these drivers get their own ioctl wrappers that take the BKL around every ioctl call and then set their own handlers as DRM_UNLOCKED. Signed-off-by: Arnd Bergmann <[email protected]> Cc: David Airlie <[email protected]> Cc: [email protected] Signed-off-by: Dave Airlie <[email protected]>
2010-08-05Merge commit 'kumar/next' into nextBenjamin Herrenschmidt36-186/+3185
2010-08-05drm/kms: Simplify setup of the initial I2C encoder config.Francisco Jerez1-0/+7
In most use cases the driver will be using the same static config all the time: interpreting i2c_board_info::platform_data as the default config we can can save the GPU driver a redundant set_config() call. Signed-off-by: Francisco Jerez <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2010-08-04drivers/net/enic: Use %pUB to format a UUIDJoe Perches1-15/+2
Signed-off-by: Joe Perches <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-08-04davinci_emac: Fix use after free in davinci_emac_removeStefan Weil1-1/+1
free_netdev finally calls kfree which makes the contents of ndev and priv (private data contained in ndev) invalid. So iounmap should be called before free_netdev. Cc: David S. Miller <[email protected]> Cc: Chaithrika U S <[email protected]> Cc: Sriramakrishnan <[email protected]> Cc: Kevin Hilman <[email protected]> Cc: [email protected] Cc: [email protected] Signed-off-by: Stefan Weil <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-08-04via-velocity: do not use PCI resources before pci_enable_device()Kulikov Vasiliy1-2/+2
IRQ and resource[] may not have correct values until after PCI hotplug setup occurs at pci_enable_device() time. The semantic match that finds this problem is as follows: // <smpl> @@ identifier x; identifier request ~= "pci_request.*|pci_resource.*"; @@ ( * x->irq | * x->resource | * request(x, ...) ) ... *pci_enable_device(x) // </smpl> Signed-off-by: Kulikov Vasiliy <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-08-04cxgb4vf: do not use PCI resources before pci_enable_device()Kulikov Vasiliy1-15/+16
IRQ and resource[] may not have correct values until after PCI hotplug setup occurs at pci_enable_device() time. The semantic match that finds this problem is as follows: // <smpl> @@ identifier x; identifier request ~= "pci_request.*|pci_resource.*"; @@ ( * x->irq | * x->resource | * request(x, ...) ) ... *pci_enable_device(x) // </smpl> Signed-off-by: Kulikov Vasiliy <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-08-04cxgb3: do not use PCI resources before pci_enable_device()Kulikov Vasiliy1-12/+13
IRQ and resource[] may not have correct values until after PCI hotplug setup occurs at pci_enable_device() time. The semantic match that finds this problem is as follows: // <smpl> @@ identifier x; identifier request ~= "pci_request.*|pci_resource.*"; @@ ( * x->irq | * x->resource | * request(x, ...) ) ... *pci_enable_device(x) // </smpl> Signed-off-by: Kulikov Vasiliy <[email protected]> Signed-off-by: David S. Miller <[email protected]>
2010-08-04IB/ehca: Init irq tasklet before irq can happenAlexander Schmidt1-4/+4
Initialize tasklet before interrupts are requested to prevent scheduling of an uninitialized tasklet. Signed-off-by: Alexander Schmidt <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2010-08-05drm,io-mapping: Specify slot to use for atomic mappingsChris Wilson4-16/+22
This is required should we ever attempt to use an io-mapping where KM_USER0 is verboten, such as inside an IRQ context. Signed-off-by: Chris Wilson <[email protected]> Cc: Eric Anholt <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2010-08-05drm/radeon/kms: only expose underscan on avivo chipsAlex Deucher2-11/+16
R4xx also uses the atom add connector function, but underscan is only supported on avivo chips. Signed-off-by: Alex Deucher <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2010-08-05drm/radeon: add new pci idsAlex Deucher1-0/+7
New evergreen and r7xx ids. Signed-off-by: Alex Deucher <[email protected]> Cc: [email protected] Signed-off-by: Dave Airlie <[email protected]>
2010-08-05drm: Cleanup after failing to create master->unique and dev->nameChris Wilson1-19/+66
v2: Userspace (notably xf86-video-{intel,ati}) became confused when drmSetInterfaceVersion() started returning -EBUSY as they used a second call (the first done in drmOpen()) to check their master credentials. Since userspace wants to be able to repeatedly call drmSetInterfaceVersion() allow them to do so. v3: Rebase to drm-core-next. Signed-off-by: Chris Wilson <[email protected]> Signed-off-by: Dave Airlie <[email protected]>
2010-08-04Merge branch 'for-next' of ↵Linus Torvalds310-574/+461
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial * 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (48 commits) Documentation: update broken web addresses. fix comment typo "choosed" -> "chosen" hostap:hostap_hw.c Fix typo in comment Fix spelling contorller -> controller in comments Kconfig.debug: FAIL_IO_TIMEOUT: typo Faul -> Fault fs/Kconfig: Fix typo Userpace -> Userspace Removing dead MACH_U300_BS26 drivers/infiniband: Remove unnecessary casts of private_data fs/ocfs2: Remove unnecessary casts of private_data libfc: use ARRAY_SIZE scsi: bfa: use ARRAY_SIZE drm: i915: use ARRAY_SIZE drm: drm_edid: use ARRAY_SIZE synclink: use ARRAY_SIZE block: cciss: use ARRAY_SIZE comment typo fixes: charater => character fix comment typos concerning "challenge" arm: plat-spear: fix typo in kerneldoc reiserfs: typo comment fix update email address ...
2010-08-04Merge branch 'for-linus' of ↵Linus Torvalds20-196/+586
git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid: (30 commits) Revert "HID: add support for the Wacom Intuos 4 wireless" HID: fix up Kconfig entry for ACRUX driver HID: add ACRUX game controller force feedback support HID: Force input registration for "VEC footpedal" HID: add HID_QUIRK_HIDINPUT_FORCE HID: hid-input.c: indentation fixes HID: hiddev: use usb_find_interface, get rid of BKL HID: ignore digitizer usage Undefined (0x00) HID: Add support for Conceptronic CLLRCMCE HID: hid-ids.h: Whitespace fixup, align using TABs HID: picolcd: implement refcounting of framebuffer HID: picolcd: do not reallocate memory on depth change HID: picolcd: Add minimal palette required by fbcon on 8bpp HID: magicmouse: Correct parsing of large X and Y motions. HID: magicmouse: report last touch up HID: picolcd: fix deferred_io init/cleanup to fb ordering HID: hid-ids.h: keep vendor ids in alphabetical order HID: add proper support for Elecom BM084 bluetooth mouse HID: magicmouse: enable horizontal scrolling HID: magicmouse: add param for scroll speed ...
2010-08-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6Linus Torvalds23-707/+1306
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (39 commits) random: Reorder struct entropy_store to remove padding on 64bits padata: update API documentation padata: Remove padata_get_cpumask crypto: pcrypt - Update pcrypt cpumask according to the padata cpumask notifier crypto: pcrypt - Rename pcrypt_instance padata: Pass the padata cpumasks to the cpumask_change_notifier chain padata: Rearrange set_cpumask functions padata: Rename padata_alloc functions crypto: pcrypt - Dont calulate a callback cpu on empty callback cpumask padata: Check for valid cpumasks padata: Allocate cpumask dependend recources in any case padata: Fix cpu index counting crypto: geode_aes - Convert pci_table entries to PCI_VDEVICE (if PCI_ANY_ID is used) pcrypt: Added sysfs interface to pcrypt padata: Added sysfs primitives to padata subsystem padata: Make two separate cpumasks padata: update documentation padata: simplify serialization mechanism padata: make padata_do_parallel to return zero on success padata: Handle empty padata cpumasks ...
2010-08-04Merge branch 'for-linus' of ↵Linus Torvalds3-42/+64
git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: percpu: allow limited allocation before slab is online percpu: make @dyn_size always mean min dyn_size in first chunk init functions
2010-08-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds268-6501/+19599
* git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (276 commits) [SCSI] zfcp: Trigger logging in the FCP channel on qdio error conditions [SCSI] zfcp: Introduce experimental support for DIF/DIX [SCSI] zfcp: Enable data division support for FCP devices [SCSI] zfcp: Prevent access on uninitialized memory. [SCSI] zfcp: Post events through FC transport class [SCSI] zfcp: Cleanup QDIO attachment and improve processing. [SCSI] zfcp: Cleanup function parameters for sbal value. [SCSI] zfcp: Use correct width for timer_interval field [SCSI] zfcp: Remove SCSI device when removing unit [SCSI] zfcp: Use memdup_user and kstrdup [SCSI] zfcp: Fix retry after failed "open port" erp action [SCSI] zfcp: Fail erp after timeout [SCSI] zfcp: Use forced_reopen in terminate_rport_io callback [SCSI] zfcp: Register SCSI devices after successful fc_remote_port_add [SCSI] zfcp: Do not try "forced close" when port is already closed [SCSI] zfcp: Do not unblock rport from REOPEN_PORT_FORCED [SCSI] sd: add support for runtime PM [SCSI] implement runtime Power Management [SCSI] convert to the new PM framework [SCSI] Unify SAM_ and SAM_STAT_ macros ...
2010-08-04ALSA: hda - Add pin-fix for HP dc5750Takashi Iwai1-0/+29
The NID 0x11 on HP dc5750 with ALC260 should be a speaker although BIOS gives it as a line-out. This patch adds a quirk to fix the pin config so that the real line-out is used properly. Reference: bnc#624118 https://bugzilla.novell.com/show_bug.cgi?id=624118 Signed-off-by: Takashi Iwai <[email protected]>
2010-08-04Merge branch 'xen/xenbus' into upstream/xenJeremy Fitzhardinge2-10/+50
* xen/xenbus: implement O_NONBLOCK for /proc/xen/xenbus xenbus: do not hold transaction_mutex when returning to userspace
2010-08-04Merge branch 'upstream/pvhvm' into upstream/xenJeremy Fitzhardinge39-61/+1156
* upstream/pvhvm: Introduce CONFIG_XEN_PVHVM compile option blkfront: do not create a PV cdrom device if xen_hvm_guest support multiple .discard.* sections to avoid section type conflicts xen/pvhvm: fix build problem when !CONFIG_XEN xenfs: enable for HVM domains too x86: Call HVMOP_pagetable_dying on exit_mmap. x86: Unplug emulated disks and nics. x86: Use xen_vcpuop_clockevent, xen_clocksource and xen wallclock. xen: Fix find_unbound_irq in presence of ioapic irqs. xen: Add suspend/resume support for PV on HVM guests. xen: Xen PCI platform device driver. x86/xen: event channels delivery on HVM. x86: early PV on HVM features initialization. xen: Add support for HVM hypercalls. Conflicts: arch/x86/xen/enlighten.c arch/x86/xen/time.c
2010-08-04Merge branch 'upstream/core' into upstream/xenJeremy Fitzhardinge6-49/+112
* upstream/core: xen/panic: use xen_reboot and fix smp_send_stop Xen: register panic notifier to take crashes of xen guests on panic xen: support large numbers of CPUs with vcpu info placement xen: drop xen_sched_clock in favour of using plain wallclock time pvops: do not notify callers from register_xenstore_notifier xen: make sure pages are really part of domain before freeing xen: release unused free memory
2010-08-04xen/panic: use xen_reboot and fix smp_send_stopIan Campbell2-4/+3
Offline vcpu when using stop_self. Signed-off-by: Ian Campbell <[email protected]> Signed-off-by: Jeremy Fitzhardinge <[email protected]>
2010-08-04Xen: register panic notifier to take crashes of xen guests on panicDonald Dutile3-0/+24
Register a panic notifier so that when the guest crashes it can shut down the domain and indicate it was a crash to the host. Signed-off-by: Donald Dutile <[email protected]> Signed-off-by: Jeremy Fitzhardinge <[email protected]>
2010-08-04xen: support large numbers of CPUs with vcpu info placementMukesh Rathor1-4/+17
When vcpu info placement is supported, we're not limited to MAX_VIRT_CPUS vcpus. However, if it isn't supported, then ignore any excess vcpus. Signed-off-by: Mukesh Rathor <[email protected]> Signed-off-by: Jeremy Fitzhardinge <[email protected]>
2010-08-04xen: drop xen_sched_clock in favour of using plain wallclock timeJeremy Fitzhardinge2-40/+1
xen_sched_clock only counts unstolen time. In principle this should be useful to the Linux scheduler so that it knows how much time a process actually consumed. But in practice this doesn't work very well as the scheduler expects the sched_clock time to be synchronized between cpus. It also uses sched_clock to measure the time a task spends sleeping, in which case "unstolen time" isn't meaningful. So just use plain xen_clocksource_read to return wallclock nanoseconds for sched_clock. Signed-off-by: Jeremy Fitzhardinge <[email protected]>
2010-08-04pvops: do not notify callers from register_xenstore_notifierStefano Stabellini1-4/+1
Currently register_xenstore_notifier notifies the caller during the registration itself if xenstore is believed to be ready. This behaviour causes problems to PV on HVM guests, in which case callers should be notified by xenbus_probe only after the platform pci driver is loaded. We already make sure xenbus_probe is called at the right time, calling it either from device_initcall (PV case) or from the platform pci driver initialization (HVM case) so we don't need this additional notification. Signed-off-by: Stefano Stabellini <[email protected]> Signed-off-by: Jeremy Fitzhardinge <[email protected]>
2010-08-04RDMA/nes: Fix misindented codeRoland Dreier1-14/+12
In nes_probe(), a bit of code is indented one tab stop too far. Fix this. Signed-off-by: Roland Dreier <[email protected]>
2010-08-04dma: dmatest: fix potential sign bugKulikov Vasiliy1-1/+1
'cnt' is unsigned, so this code may become wrong in future as dmatest_add_threads() can return error code: cnt = dmatest_add_threads(dtc, DMA_MEMCPY); thread_count += cnt > 0 ? cnt : 0; ^^^^^^^ Now it can return only -EINVAL if and only if second argument of dmatest_add_threads() is not one of DMA_MEMCPY, DMA_XOR, DMA_PQ. So, now it is not wrong but may become wrong in future. The semantic patch that finds this problem (many false-positive results): (http://coccinelle.lip6.fr/) // <smpl> @ r1 @ identifier f; @@ int f(...) { ... } @@ identifier r1.f; type T; unsigned T x; @@ *x = f(...) ... *x > 0 Signed-off-by: Kulikov Vasiliy <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2010-08-04RDMA/nes: Fix showing wqm_quantaRoland Dreier1-1/+1
In nes_show_wqm_quanta(), the wrong value is printed. Fix this. Signed-off-by: Roland Dreier <[email protected]>
2010-08-04RDMA/nes: Get rid of "set but not used" variablesRoland Dreier5-21/+2
Delete dead code in various places that is shown by gcc 4.6's new -Wunused-but-set-variable warnings. Signed-off-by: Roland Dreier <[email protected]>
2010-08-04PCI: update for owner removal from struct device_attributeStephen Rothwell1-2/+2
Fixes the build. Acked-by: Guenter Roeck <[email protected]> Signed-off-by: Stephen Rothwell <[email protected]> Signed-off-by: Jesse Barnes <[email protected]>
2010-08-04ALSA: als4000: Fix potentially invalid DMA mode setupOndrej Zary1-1/+1
My previous patch assumed that the DMA mode (represented by 3 lowest bits of ALS4K_GCR99_DMA_EMULATION_CTRL register) is set to the default value 0. If that's not the case, it might result in invalid mode to be set. This patch fixes this potential problem. Signed-off-by: Ondrej Zary <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
2010-08-04ioat2: catch and recover from broken vtd configurations v6Dan Williams4-3/+55
On some platforms (MacPro3,1) the BIOS assigns the ioatdma device to the incorrect iommu causing faults when the driver initializes. Add a quirk to catch this misconfiguration and try falling back to untranslated operation (which works in the MacPro3,1 case). Assuming there are other platforms with misconfigured iommus teach the ioatdma driver to treat initialization failures as non-fatal (just fail the driver load and emit a warning instead of triggering a BUG_ON). This can be classified as a boot regression since 2.6.32 on affected platforms since the ioatdma module did not autoload prior to that kernel. Cc: <[email protected]> Acked-by: David Woodhouse <[email protected]> Reported-by: Chris Li <[email protected]> Tested-by: Chris Li <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2010-08-04DMAENGINE: add runtime slave control to COH 901 318 v3Linus Walleij1-0/+169
This extends the DMA engine driver for the COH 901 318 used in the U300 platform with the generic runtime slave control command. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2010-08-04DMAENGINE: add runtime slave config to DMA40 v3Linus Walleij1-4/+137
This extends the DMA engine driver for the DMA40 used in the U8500 platform with the generic runtime slave configuration interface. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2010-08-04DMAENGINE: generic slave channel control v3Linus Walleij1-0/+71
This adds an interface to the DMAengine to make it possible to reconfigure a slave channel at runtime. We add a few foreseen config parameters to the passed struct, with a void * pointer for custom per-device or per-platform runtime slave data. Signed-off-by: Linus Walleij <[email protected]> Signed-off-by: Dan Williams <[email protected]>
2010-08-04dmaengine: Driver for Topcliff PCH DMA controllerYong Wang4-0/+1002
Topcliff PCH is the platform controller hub that is going to be used in Intel's upcoming general embedded platforms. This adds the driver for Topcliff PCH DMA controller. The DMA channels are strictly for device to host or host to device transfers and cannot be used for generic memcpy. Signed-off-by: Yong Wang <[email protected]> [kill GFP_ATOMIC, kill __raw_{read|write}l, locking fixlet] Signed-off-by: Dan Williams <[email protected]>
2010-08-04RDMA/nes: Read firmware version from correct placeMiroslaw Walukiewicz1-1/+1
Signed-off-by: Mirek Walukiewicz <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
2010-08-04IB/srp: Export req_lim via sysfsBart Van Assche1-0/+14
Export req_lim via sysfs for debugging. Signed-off-by: Bart Van Assche <[email protected]> Acked-by: David Dillow <[email protected]> Signed-off-by: Roland Dreier <[email protected]>
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