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2013-05-09usb: tilegx: fix memleak when create hcd failLibo Chen
When usb_create_hcd fail, we should call gxio_usb_host_destroy Signed-off-by: Libo Chen <libo.chen@huawei.com> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com> [extended to EHCI]
2013-05-09arch/tile: remove inline marking of EXPORT_SYMBOL functionsDenis Efremov
EXPORT_SYMBOL and inline directives are contradictory to each other. The patch fixes this inconsistency. Found by Linux Driver Verification project (linuxtesting.org). Signed-off-by: Denis Efremov <yefremov.denis@gmail.com> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
2013-05-09unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINEAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-09ecryptfs: don't open-code kernel_read()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-09Merge tag 'nfs-for-3.10-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfsLinus Torvalds
Pull more NFS client bugfixes from Trond Myklebust: - Ensure that we match the 'sec=' mount flavour against the server list - Fix the NFSv4 byte range locking in the presence of delegations - Ensure that we conform to the NFSv4.1 spec w.r.t. freeing lock stateids - Fix a pNFS data server connection race * tag 'nfs-for-3.10-2' of git://git.linux-nfs.org/projects/trondmy/linux-nfs: NFS4.1 Fix data server connection race NFSv3: match sec= flavor against server list NFSv4.1: Ensure that we free the lock stateid on the server NFSv4: Convert nfs41_free_stateid to use an asynchronous RPC call SUNRPC: Don't spam syslog with "Pseudoflavor not found" messages NFSv4.x: Fix handling of partially delegated locks
2013-05-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netLinus Torvalds
Pull networking update from David Miller: 1) Propagate return error values properly in irda, spider_net, sfc, and bfin_mac. From Wei Yongjun. 2) Fix fec driver OOPS on rapid link up/down, from Frank Li. 3) FIX VF resource allocation and chip message payload length errors in be2net driver, from Sathya Perla. 4) Fix inner protocol inspection during GSO from Pravin B Shelar. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: if_cablemodem.h: Add parenthesis around ioctl macros gso: Handle Trans-Ether-Bridging protocol in skb_network_protocol() net: fec: fix kernel oops when plug/unplug cable many times bfin_mac: fix error return code in bfin_mac_probe() sfc: fix return value check in efx_ptp_probe_channel() net/spider_net: fix error return code in spider_net_open() net/irda: fix error return code in bfin_sir_open() net: of_mdio: fix behavior on missing phy device sierra_net: keep status interrupt URB active usbnet: allow status interrupt URB to always be active qmi_wwan/cdc_ether: add device IDs for Dell 5804 (Novatel E371) WWAN card be2net: disable TX in be_close() be2net: fix EQ from getting full while cleaning RX CQ be2net: fix payload_len value for GET_MAC_LIST cmd req be2net: provision VF resources before enabling SR-IOV
2013-05-09Merge tag 'pci-v3.10-fixes-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull PCI updates from Bjorn Helgaas: "MSI: PCI: Set ->mask_pos correctly Hotplug: PCI: Delay final fixups until resources are assigned Moorestown: x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0" * tag 'pci-v3.10-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: PCI: Delay final fixups until resources are assigned x86/pci/mrst: Use configuration mechanism 1 for 00:00.0, 00:02.0, 00:03.0 PCI: Set ->mask_pos correctly
2013-05-09xtensa simdisk: Fix proc_create_data() conversion falloutGeert Uytterhoeven
arch/xtensa/platforms/iss/simdisk.c: In function 'proc_read_simdisk': arch/xtensa/platforms/iss/simdisk.c:220:12: warning: initialization discards 'const' qualifier from pointer target type [enabled by default] arch/xtensa/platforms/iss/simdisk.c: In function 'proc_write_simdisk': arch/xtensa/platforms/iss/simdisk.c:241:38: error: 'buffer' undeclared (first use in this function) arch/xtensa/platforms/iss/simdisk.c:241:38: note: each undeclared identifier is reported only once for each function it appears in Introduced by commit a69755b187749e7cc020e17127a54f395aea4eaa ("xtensa simdisk: switch to proc_create_data()") Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2013-05-09Merge tag 'for-linus-20130509' of git://git.infradead.org/linux-mtdLinus Torvalds
Pull MTD update from David Woodhouse: - Lots of cleanups from Artem, including deletion of some obsolete drivers - Support partitions larger than 4GiB in device tree - Support for new SPI chips * tag 'for-linus-20130509' of git://git.infradead.org/linux-mtd: (83 commits) mtd: omap2: Use module_platform_driver() mtd: bf5xx_nand: Use module_platform_driver() mtd: denali_dt: Remove redundant use of of_match_ptr mtd: denali_dt: Change return value to fix smatch warning mtd: denali_dt: Use module_platform_driver() mtd: denali_dt: Fix incorrect error check mtd: nand: subpage write support for hardware based ECC schemes mtd: omap2: use msecs_to_jiffies() mtd: nand_ids: use size macros mtd: nand_ids: improve LEGACY_ID_NAND macro a bit mtd: add 4 Toshiba nand chips for the full-id case mtd: add the support to parse out the full-id nand type mtd: add new fields to nand_flash_dev{} mtd: sh_flctl: Use of_match_ptr() macro mtd: gpio: Use of_match_ptr() macro mtd: gpio: Use devm_kzalloc() mtd: davinci_nand: Use of_match_ptr() mtd: dataflash: Use of_match_ptr() macro mtd: remove h720x flash support mtd: onenand: remove OneNAND simulator ...
2013-05-09Merge tag 'firewire-updates' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 Pull firewure updates from Stefan Richter: - fix controller removal when controller is in suspended state - fix video reception on VIA VT6306 with gstreamer, MythTV, and maybe dv4l - fix a startup issue with Agere/LSI FW643-e2 - error logging improvements and other small updates * tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: ohci: dump_stack() for PHY regs read/write failures firewire: ohci: Improve bus reset error messages firewire: ohci: Alias dev_* log functions firewire: ohci: Fix 'failed to read phy reg' on FW643 rev8 firewire: ohci: fix VIA VT6306 video reception firewire: ohci: Check LPS before register access on pci removal firewire: ohci: Fix double free_irq() firewire: remove unnecessary alloc/OOM messages firewire: sbp2: replace BUG_ON by WARN_ON firewire: core: remove an always false test firewire: Remove two unneeded checks for macros
2013-05-09Merge tag 'edac_fixes_for_3.10' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp Pull two small EDAC fixes from Borislav Petkov. * tag 'edac_fixes_for_3.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bp/bp: EDAC: Don't give write permission to read-only files EDAC, mc_sysfs.c: Fix string array pointer types
2013-05-09Merge git://www.linux-watchdog.org/linux-watchdogLinus Torvalds
Pull watchdog update from Wim Van Sebroeck: "Fix a kdump issue in hpwdt and a possible NULL dereference" * git://www.linux-watchdog.org/linux-watchdog: watchdog: Fix race condition in registration code watchdog: Convert to devm_ioremap_resource()
2013-05-09Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linuxLinus Torvalds
Pull removal of GENERIC_GPIO from Grant Likely: "GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it is possible to do so which has been causing confusion and breakage. This branch does the work to completely eliminate GENERIC_GPIO." * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: gpio: update gpio Chinese documentation Remove GENERIC_GPIO config option Convert selectors of GENERIC_GPIO to GPIOLIB blackfin: force use of gpiolib m68k: coldfire: use gpiolib mips: pnx833x: remove requirement for GENERIC_GPIO openrisc: default GENERIC_GPIO to false avr32: default GENERIC_GPIO to false xtensa: remove explicit selection of GENERIC_GPIO sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB powerpc: remove redundant GENERIC_GPIO selection unicore32: default GENERIC_GPIO to false unicore32: remove unneeded select GENERIC_GPIO arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB arm: remove redundant GENERIC_GPIO selection mips: alchemy: require gpiolib mips: txx9: change GENERIC_GPIO to GPIOLIB mips: loongson: use GPIO driver on CONFIG_GPIOLIB mips: remove redundant GENERIC_GPIO select
2013-05-09nfsd: fix oops when legacy_recdir_name_error is passed a -ENOENT errorJeff Layton
Toralf reported the following oops to the linux-nfs mailing list: -----------------[snip]------------------ NFSD: unable to generate recoverydir name (-2). NFSD: disabling legacy clientid tracking. Reboot recovery will not function correctly! BUG: unable to handle kernel NULL pointer dereference at 000003c8 IP: [<f90a3d91>] nfsd4_client_tracking_exit+0x11/0x50 [nfsd] *pdpt = 000000002ba33001 *pde = 0000000000000000 Oops: 0000 [#1] SMP Modules linked in: loop nfsd auth_rpcgss ipt_MASQUERADE xt_owner xt_multiport ipt_REJECT xt_tcpudp xt_recent xt_conntrack nf_conntrack_ftp xt_limit xt_LOG iptable_nat nf_conntrack_ipv4 nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_filter ip_tables x_tables af_packet pppoe pppox ppp_generic slhc bridge stp llc tun arc4 iwldvm mac80211 coretemp kvm_intel uvcvideo sdhci_pci sdhci mmc_core videobuf2_vmalloc videobuf2_memops usblp videobuf2_core i915 iwlwifi psmouse videodev cfg80211 kvm fbcon bitblit cfbfillrect acpi_cpufreq mperf evdev softcursor font cfbimgblt i2c_algo_bit cfbcopyarea intel_agp intel_gtt drm_kms_helper snd_hda_codec_conexant drm agpgart fb fbdev tpm_tis thinkpad_acpi tpm nvram e1000e rfkill thermal ptp wmi pps_core tpm_bios 8250_pci processor 8250 ac snd_hda_intel snd_hda_codec snd_pcm battery video i2c_i801 snd_page_alloc snd_timer button serial_core i2c_core snd soundcore thermal_sys hwmon aesni_intel ablk_helper cryp td lrw aes_i586 xts gf128mul cbc fuse nfs lockd sunrpc dm_crypt dm_mod hid_monterey hid_microsoft hid_logitech hid_ezkey hid_cypress hid_chicony hid_cherry hid_belkin hid_apple hid_a4tech hid_generic usbhid hid sr_mod cdrom sg [last unloaded: microcode] Pid: 6374, comm: nfsd Not tainted 3.9.1 #6 LENOVO 4180F65/4180F65 EIP: 0060:[<f90a3d91>] EFLAGS: 00010202 CPU: 0 EIP is at nfsd4_client_tracking_exit+0x11/0x50 [nfsd] EAX: 00000000 EBX: fffffffe ECX: 00000007 EDX: 00000007 ESI: eb9dcb00 EDI: eb2991c0 EBP: eb2bde38 ESP: eb2bde34 DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 CR0: 80050033 CR2: 000003c8 CR3: 2ba80000 CR4: 000407f0 DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 DR6: ffff0ff0 DR7: 00000400 Process nfsd (pid: 6374, ti=eb2bc000 task=eb2711c0 task.ti=eb2bc000) Stack: fffffffe eb2bde4c f90a3e0c f90a7754 fffffffe eb0a9c00 eb2bdea0 f90a41ed eb2991c0 1b270000 eb2991c0 eb2bde7c f9099ce9 eb2bde98 0129a020 eb29a020 eb2bdecc eb2991c0 eb2bdea8 f9099da5 00000000 eb9dcb00 00000001 67822f08 Call Trace: [<f90a3e0c>] legacy_recdir_name_error+0x3c/0x40 [nfsd] [<f90a41ed>] nfsd4_create_clid_dir+0x15d/0x1c0 [nfsd] [<f9099ce9>] ? nfsd4_lookup_stateid+0x99/0xd0 [nfsd] [<f9099da5>] ? nfs4_preprocess_seqid_op+0x85/0x100 [nfsd] [<f90a4287>] nfsd4_client_record_create+0x37/0x50 [nfsd] [<f909d6ce>] nfsd4_open_confirm+0xfe/0x130 [nfsd] [<f90980b1>] ? nfsd4_encode_operation+0x61/0x90 [nfsd] [<f909d5d0>] ? nfsd4_free_stateid+0xc0/0xc0 [nfsd] [<f908fd0b>] nfsd4_proc_compound+0x41b/0x530 [nfsd] [<f9081b7b>] nfsd_dispatch+0x8b/0x1a0 [nfsd] [<f857b85d>] svc_process+0x3dd/0x640 [sunrpc] [<f908165d>] nfsd+0xad/0x110 [nfsd] [<f90815b0>] ? nfsd_destroy+0x70/0x70 [nfsd] [<c1054824>] kthread+0x94/0xa0 [<c1486937>] ret_from_kernel_thread+0x1b/0x28 [<c1054790>] ? flush_kthread_work+0xd0/0xd0 Code: 86 b0 00 00 00 90 c5 0a f9 c7 04 24 70 76 0a f9 e8 74 a9 3d c8 eb ba 8d 76 00 55 89 e5 53 66 66 66 66 90 8b 15 68 c7 0a f9 85 d2 <8b> 88 c8 03 00 00 74 2c 3b 11 77 28 8b 5c 91 08 85 db 74 22 8b EIP: [<f90a3d91>] nfsd4_client_tracking_exit+0x11/0x50 [nfsd] SS:ESP 0068:eb2bde34 CR2: 00000000000003c8 ---[ end trace 09e54015d145c9c6 ]--- The problem appears to be a regression that was introduced in commit 9a9c6478 "nfsd: make NFSv4 recovery client tracking options per net". Prior to that commit, it was safe to pass a NULL net pointer to nfsd4_client_tracking_exit in the legacy recdir case, and legacy_recdir_name_error did so. After that comit, the net pointer must be valid. This patch just fixes legacy_recdir_name_error to pass in a valid net pointer to that function. Cc: <stable@vger.kernel.org> # v3.8+ Cc: Stanislav Kinsbursky <skinsbursky@parallels.com> Reported-and-tested-by: Toralf Förster <toralf.foerster@gmx.de> Signed-off-by: Jeff Layton <jlayton@redhat.com> Signed-off-by: J. Bruce Fields <bfields@redhat.com>
2013-05-09Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dmaLinus Torvalds
Pull slave-dmaengine updates from Vinod Koul: "This time we have dmatest improvements from Andy along with dw_dmac fixes. He has also done support for acpi for dmanegine. Also we have bunch of fixes going in DT support for dmanegine for various folks. Then Haswell and other ioat changes from Dave and SUDMAC support from Shimoda." * 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (53 commits) dma: tegra: implement suspend/resume callbacks dma:of: Use a mutex to protect the of_dma_list dma: of: Fix of_node reference leak dmaengine: sirf: move driver init from module_init to subsys_initcall sudmac: add support for SUDMAC dma: sh: add Kconfig at_hdmac: move to generic DMA binding ioatdma: ioat3_alloc_sed can be static ioatdma: Adding write back descriptor error status support for ioatdma 3.3 ioatdma: S1200 platforms ioatdma channel 2 and 3 falsely advertise RAID cap ioatdma: Adding support for 16 src PQ ops and super extended descriptors ioatdma: Removing hw bug workaround for CB3.x .2 and earlier dw_dmac: add ACPI support dmaengine: call acpi_dma_request_slave_channel as well dma: acpi-dma: introduce ACPI DMA helpers dma: of: Remove unnecessary list_empty check DMA: OF: Check properties value before running be32_to_cpup() on it DMA: of: Constant names ioatdma: skip silicon bug workaround for pq_align for cb3.3 ioatdma: Removing PQ val disable for cb3.3 ...
2013-05-09Merge branch 'next' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux Pull thermal management update from Zhang Rui: "The most important one is to build thermal core and governor and cpu cooling code into one module. This fixes a regression that thermal core does not work if it is built as module, since 3.7. I'll backport them to stable kernel once those changes are in upstream. The largest batch is the thermal kernel-doc & coding style updates/cleanups from Eduardo. Highlights: - build all thermal framework code into one module to fix a regression that thermal does not work if it is built as module. - Marvell Armada 370/XP thermal sensor driver - thermal core/cpu cooling kernel-doc & coding style updates and cleanups. - Add Eduardo Valentin as thermal sub-maintainer, both in mailing list and patchwork. He will help me on arm thermal drivers." * 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux: (68 commits) thermal: db8500_cpufreq_cooling: remove usage of IS_ERR_OR_NULL() thermal: thermal_core: remove usage of IS_ERR_OR_NULL thermal: cpu_cooling: improve line breaking thermal: cpu_cooling: alignment improvements thermal: cpu_cooling: remove checkpatch.pl warning thermal: cpu_cooling: remove trailing blank line thermal: cpu_cooling: align on open parenthesis thermal: cpu_cooling: standardize comment style thermal: cpu_cooling: standardize end of function thermal: cpu_cooling: remove trailing white spaces Thermal: update documentation for thermal_zone_device_register thermal: update kernel-doc for thermal_zone_device_register thermal: update kernel-doc for create_trip_attrs thermal: update kernel-doc for thermal_cooling_device_register thermal: update kernel-doc for thermal_zone_unbind_cooling_device thermal: update kernel-doc for thermal_zone_bind_cooling_device thermal: use EXPORT_SYMBOL_GPL thermal: rename notify_thermal_framework to thermal_notify_framework thermal: update driver license thermal: use strlcpy instead of strcpy ...
2013-05-09ARC: [mm] Aliasing VIPT dcache support 4/4Vineet Gupta
Enforce congruency of userspace shared mappings Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-05-09ARC: [mm] Aliasing VIPT dcache support 3/4Vineet Gupta
Fix the one zillion warnings Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-05-09ARC: [mm] Aliasing VIPT dcache support 2/4Vineet Gupta
This is the meat of the series which prevents any dcache alias creation by always keeping the U and K mapping of a page congruent. If a mapping already exists, and other tries to access the page, prev one is flushed to physical page (wback+inv) Essentially flush_dcache_page()/copy_user_highpage() create K-mapping of a page, but try to defer flushing, unless U-mapping exist. When page is actually mapped to userspace, update_mmu_cache() flushes the K-mapping (in certain cases this can be optimised out) Additonally flush_cache_mm(), flush_cache_range(), flush_cache_page() handle the puring of stale userspace mappings on exit/munmap... flush_anon_page() handles the existing U-mapping for anon page before kernel reads it via the GUP path. Note that while not complete, this is enough to boot a simple dynamically linked Busybox based rootfs Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-05-09ARC: [mm] Aliasing VIPT dcache support 1/4Vineet Gupta
This preps the low level dcache flush helpers to take vaddr argument in addition to the existing paddr to properly flush the VIPT dcache Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-05-09ARM: dts: don't assume boards are using twl4030 for omap3Jason Cooper
If a board isn't using twl4030, then dtc will complain about the missing phandle (which is in twl4030.dtsi). Move the phy declaration to the dts files. Signed-off-by: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-05-09ARM: OMAP2+: Remove bogus IS_ERR_OR_NULL checking from id.cTony Lindgren
Commit 6770b211 (ARM: OMAP2+: Export SoC information to userspace) had some broken return value handling as noted by Russell King: + soc_dev = soc_device_register(soc_dev_attr); + if (IS_ERR_OR_NULL(soc_dev)) { + kfree(soc_dev_attr); + return; + } + + parent = soc_device_to_device(soc_dev); + if (!IS_ERR_OR_NULL(parent)) + device_create_file(parent, &omap_soc_attr); This is nonsense. For the first, IS_ERR() is sufficient. For the second, tell me what error checking is required in the return value of this function: struct device *soc_device_to_device(struct soc_device *soc_dev) { return &soc_dev->dev; } when you've already determined that the passed soc_dev is a valid pointer. If you read the comments against the prototype: /** * soc_device_to_device - helper function to fetch struct device * @soc: Previously registered SoC device container */ struct device *soc_device_to_device(struct soc_device *soc); if "soc" is valid, it means the "previously registered SoC device container" must have succeeded and that can only happen if the struct device has been registered. Ergo, there will always be a valid struct device pointer for any registered SoC device container. Therefore, if soc_device_register() succeeds, then the return value from soc_device_to_device() will always be valid and no error checking of it is required. Simples. The rule as ever applies here: get to know the APIs your using and don't fumble around in the dark hoping that you'll get this stuff right. Fix it as noted by Russell. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-05-09Merge branch 'mti-next' of ↵Ralf Baechle
git://git.linux-mips.org/pub/scm/sjhill/linux-sjhill into mips-for-linux-next
2013-05-09Merge branch 'next/kvm' into mips-for-linux-nextRalf Baechle
2013-05-09MIPS: Add new GIC clockevent driver.Raghu Gandham
Add new clockevent driver that uses the counter present on the MIPS Global Interrupt Controller. Signed-off-by: Raghu Gandham <Raghu.Gandham@imgtec.com> Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: Formatting clean-ups for clocksources.Steven J. Hill
Various whitespace and #ifdef removals for GIC and R4K clocksources. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: Refactor GIC clocksource code.Steven J. Hill
Reorganize some of the GIC clocksource driver code. Below is a list of the various changes. * No longer select CSRC_GIC by default for Malta platform. * Limit choice for either the GIC or R4K clocksource, not both. * Change location in Makefile. * Created new 'gic_read_count' function in common 'irq-gic.c' file. * Change 'git_hpt_read' function in 'csrc-gic.c' to use new function. * Surround GIC specific code in Malta platform code with #ifdef's. * Only initialize the GIC clocksource if it was selected. Original code called it unconditionally if a GIC was found. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: Move 'gic_frequency' to common location.Steven J. Hill
Move the global variable 'gic_frequency' to be defined in the file 'arch/mips/kernel/irq-gic.c' instead of defining it individually for each platform making use of the GIC. Also change the type to be an unsigned integer instead of signed. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: Move 'gic_present' to common location.Steven J. Hill
Move the global variable 'gic_present' to be defined in the file 'arch/mips/kernel/irq-gic.c' instead of defining it individually for each platform making use of the GIC. Also change the type to be an unsigned integer instead of signed. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: MIPS16e: Add unaligned access support.Steven J. Hill
Add logic needed to handle unaligned accesses in MIPS16e mode. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com> Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
2013-05-09MIPS: MIPS16e: Support handling of delay slots.Steven J. Hill
Add logic needed to properly calculate exceptions for delay slots when in MIPS16e mode. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: MIPS16e: Add instruction formats.Steven J. Hill
Add structures for all the MIPS16e instructions. Also add the enumerations for all the bit fields for opcodes, functions, etc. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Optimise 'strnlen' core library function.Steven J. Hill
Optimise 'strnlen' to use microMIPS instructions and/or optimisations for binary size reduction. When the microMIPS ISA is not being used, the library function compiles to the original binary code. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Optimise 'strlen' core library function.Steven J. Hill
Optimise 'strlen' to use microMIPS instructions and/or optimisations for binary size reduction. When the microMIPS ISA is not being used, the library function compiles to the original binary code. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Optimise 'strncpy' core library function.Steven J. Hill
Optimise 'strncpy' to use microMIPS instructions and/or optimisations for binary size reduction. When the microMIPS ISA is not being used, the library function compiles to the original binary code. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Optimise 'memset' core library function.Steven J. Hill
Optimise 'memset' to use microMIPS instructions and/or optimisations for binary size reduction. When the microMIPS ISA is not being used, the library function compiles to the original binary code. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Add configuration option for microMIPS kernel.Steven J. Hill
This adds the option to build the Linux kernel using only the microMIPS ISA. The resulting kernel binary is, at a minimum, 20% smaller than using the MIPS32R2 ISA. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Disable LL/SC and fix linker bug.Steven J. Hill
Partially revert commit e0c14a260d66ba35935600d6435940a566fe806b and turn off LL/SC when building a pure microMIPS kernel. This is a temporary fix until the cmpxchg assembly macro functions are re-written to not use the HI/LO registers in address calculations. Also add .insn in selected user access functions which would otherwise produce ISA mode jump incompatibilities. This is also a temporary fix. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Add vdso support.Douglas Leung
Support vdso in microMIPS mode. Signed-off-by: Douglas Leung <Douglas.Leung@imgtec.com> Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Add unaligned access support.Leonid Yegoshin
Add logic needed to handle unaligned accesses in microMIPS mode. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com> Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
2013-05-09MIPS: microMIPS: Support handling of delay slots.Leonid Yegoshin
Add logic needed to properly calculate exceptions for delay slots when in microMIPS mode. Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Add support for exception handling.Steven J. Hill
All exceptions must be taken in microMIPS mode, never in classic MIPS mode or the kernel falls apart. A few NOP instructions are used to maintain the correct alignment of microMIPS versions of the exception vectors. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Floating point support.Leonid Yegoshin
Add logic needed to do floating point emulation in microMIPS mode. Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com> Signed-off-by: Steven J. Hill <Steven. Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Fix macro naming in micro-assembler.Steven J. Hill
The macros did not properly take into account the ISA that the kernel was being compiled with. A classic MIPS kernel will have the standard 'uasm_i_##op' macro functions with 'MM_uasm_i_##op' macro functions for the microMIPS version. A pure microMIPS kernel will have the standard macros with 'CL_uasm_i_##op' macro functions for the classic version. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09MIPS: microMIPS: Fix incorrect mask for jump immediate.Steven J. Hill
Jump or branch target addresses have the first bit set. The original mask did not take this into account and will cause a field overflow warning for the target address when a jump immediate instruction is built. Signed-off-by: Steven J. Hill <Steven.Hill@imgtec.com>
2013-05-09KVM/MIPS32: Binary patching of select privileged instructions.Sanjay Lal
Currently, the following instructions are translated: - CACHE (indexed) - CACHE (va based): translated to a SYNCI, overkill on D-CACHE operations, but still much faster than a trap. - mfc0/mtc0: the virtual COP0 registers for the guest are implemented as 2-D array. [COP#][SEL] and this is mapped into the guest kernel address space @ VA 0x0. mfc0/mtc0 operations are transformed to load/stores. Signed-off-by: Sanjay Lal <sanjayl@kymasys.com> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-09KVM/MIPS32: Do not call vcpu_load when injecting interrupts.Sanjay Lal
Signed-off-by: Sanjay Lal <sanjayl@kymasys.com> Cc: kvm@vger.kernel.org Cc: linux-mips@linux-mips.org Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2013-05-09ftrace: Have ftrace_regex_write() return either read or errorSteven Rostedt (Red Hat)
As ftrace_regex_write() reads the result of ftrace_process_regex() which can sometimes return a positive number, only consider a failure if the return is negative. Otherwise, it will skip possible other registered probes and by returning a positive number that wasn't read, it will confuse the user processes doing the writing. Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-05-09tracing: Return error if register_ftrace_function_probe() fails for ↵Steven Rostedt (Red Hat)
event_enable_func() register_ftrace_function_probe() returns the number of functions it registered, which can be zero, it can also return a negative number if something went wrong. But event_enable_func() only checks for the case that it didn't register anything, it needs to also check for the case that something went wrong and return that error code as well. Added some comments about the code as well, to make it more understandable. Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
2013-05-09tracing: Don't succeed if event_enable_func did not register anythingMasami Hiramatsu
Return 0 instead of the number of activated ftrace function probes if event_enable_func succeeded and return an error code if it failed or did not register any functions. But it currently returns the number of registered functions and if it didn't register anything, it returns 0, but that is considered success. This also fixes the return value. As if it succeeds, it returns the number of functions that were enabled, which is returned back to the user in ftrace_regex_write (the write() return code). If only one function is enabled, then the return code of the write is one, and this can confuse the user program in thinking it only wrote 1 byte. Link: http://lkml.kernel.org/r/20130509054413.30398.55650.stgit@mhiramat-M0-7522 Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Tom Zanussi <tom.zanussi@intel.com> Signed-off-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> [ Rewrote change log to reflect that this fixes two bugs - SR ] Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
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