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2015-12-17of: fix declaration of of_io_request_and_mapSudip Mukherjee
We are having build failure with linux-next for sparc allmodconfig with the error messages: drivers/built-in.o: In function `meson6_timer_init': meson6_timer.c:(.init.text+0x5fe8): undefined reference to `of_io_request_and_map' drivers/built-in.o: In function `mtk_timer_init': mtk_timer.c:(.init.text+0x6af0): undefined reference to `of_io_request_and_map' drivers/built-in.o: In function `asm9260_timer_init': asm9260_timer.c:(.init.text+0x6c48): undefined reference to `of_io_request_and_map' CONFIG_OF is defined for sparc so it is expected that we have a definition of of_io_request_and_map() but of/address.c is only compiled if it is !SPARC. In other words, CONFIG_OF_ADDRESS is not defined for sparc so we get the build failure. Fixes: e572f844ca66 ("clocksource/drivers/meson6: Add the COMPILE_TEST option") Fixes: bec8c4617611 ("clocksource/drivers/mediatek: Add the COMPILE_TEST option") Fixes: 4a373b45f94a ("clocksource/drivers/asm9260: Add the COMPILE_TEST option") Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org> Signed-off-by: Sudip Mukherjee <sudip@vectorindia.org> [robh: move include of io.h out of ifdef's] Signed-off-by: Rob Herring <robh@kernel.org>
2015-12-17usb: of: fix build breakage on !OFFelipe Balbi
If OF is disabled, we will try to define a stub for of_usb_get_dr_mode_by_phy(), however that missed a static inline annotation which made us redefine the stub over and over again. Fix that. Fixes: 98bfb3946695 ("usb: of: add an api to get dr_mode by the phy node") Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-17serial: sh-sci: Add BRG register definitionsGeert Uytterhoeven
Add register definitions for the Baud Rate Generator for External Clock (BRG), as found in some SCIF and in HSCIF, including a new regtype for the "SH-4(A)"-derived SCIF variant with BRG. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2015-12-17Merge tag 'drm/panel/for-4.5-rc1' of ↵Dave Airlie
git://anongit.freedesktop.org/tegra/linux into drm-next drm/panel: Changes for v4.5-rc1 This set of changes brings in a few more helpers for DSI support as well as a couple of new drivers and support for some more simple panels. * tag 'drm/panel/for-4.5-rc1' of git://anongit.freedesktop.org/tegra/linux: drm/panel: simple: Add QiaoDian qd43003c0-40 of: Add vendor prefix for QiaoDian Xianshi drm/panel: add kernel doc for size attributes in panel_desc drm/panel: simple: Add support for Kyocera TCG121XGLP panel devicetree: add vendor prefix for Kyocera Corporation drm/bridge: Remove gratuitous blank line drm/bridge: dw-hdmi: Use dashes in filenames drm/panel: Add Sharp LS043T1LE01 MIPI DSI panel dt-bindings: Add Sharp LS043T1LE01 panel binding drm/dsi: Add Turn On/Shutdown Peripheral command helpers drm/panel: Add Panasonic VVX10F034N00 MIPI DSI panel dt-bindings: Add Panasonic VVX10F034N00 panel binding drm/panel: simple: Add support for Innolux G121X1-L03 drm/panel: simple: Add support for BOE TV080WUM-NL0 dt-bindings: Add BOE TV080WUM-NL0 panel binding of: Add vendor prefix for BOE Technology Group drm/dsi: Add a helper to get bits per pixel of MIPI DSI pixel format
2015-12-16Input: add eGalaxTouch serial touchscreen driverBöszörményi Zoltán
There are two EETI touchscreen drivers in the kernel (eeti_ts and egalax_ts) but both are for I2C-connected panels. This is for a different, serial and not multi-touch touchscreen panel. The protocol documentation is at http://www.eeti.com.tw/pdf/Software%20Programming%20Guide_v2.0.pdf Signed-off-by: Böszörményi Zoltán <zboszor@pr.hu> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2015-12-16kvm: Dump guest rIP when the guest tried something unsupportedBorislav Petkov
It looks like this in action: kvm [5197]: vcpu0, guest rIP: 0xffffffff810187ba unhandled rdmsr: 0xc001102 and helps to pinpoint quickly where in the guest we did the unsupported thing. Signed-off-by: Borislav Petkov <bp@suse.de> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-12-16kvm/x86: Hyper-V SynIC timersAndrey Smetanin
Per Hyper-V specification (and as required by Hyper-V-aware guests), SynIC provides 4 per-vCPU timers. Each timer is programmed via a pair of MSRs, and signals expiration by delivering a special format message to the configured SynIC message slot and triggering the corresponding synthetic interrupt. Note: as implemented by this patch, all periodic timers are "lazy" (i.e. if the vCPU wasn't scheduled for more than the timer period the timer events are lost), regardless of the corresponding configuration MSR. If deemed necessary, the "catch up" mode (the timer period is shortened until the timer catches up) will be implemented later. Changes v2: * Use remainder to calculate periodic timer expiration time Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com> Reviewed-by: Roman Kagan <rkagan@virtuozzo.com> CC: Gleb Natapov <gleb@kernel.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: "K. Y. Srinivasan" <kys@microsoft.com> CC: Haiyang Zhang <haiyangz@microsoft.com> CC: Vitaly Kuznetsov <vkuznets@redhat.com> CC: Roman Kagan <rkagan@virtuozzo.com> CC: Denis V. Lunev <den@openvz.org> CC: qemu-devel@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-12-16kvm/x86: Hyper-V SynIC message slot pending clearing at SINT ackAndrey Smetanin
The SynIC message protocol mandates that the message slot is claimed by atomically setting message type to something other than HVMSG_NONE. If another message is to be delivered while the slot is still busy, message pending flag is asserted to indicate to the guest that the hypervisor wants to be notified when the slot is released. To make sure the protocol works regardless of where the message sources are (kernel or userspace), clear the pending flag on SINT ACK notification, and let the message sources compete for the slot again. Signed-off-by: Andrey Smetanin <asmetanin@virtuozzo.com> Reviewed-by: Roman Kagan <rkagan@virtuozzo.com> CC: Gleb Natapov <gleb@kernel.org> CC: Paolo Bonzini <pbonzini@redhat.com> CC: "K. Y. Srinivasan" <kys@microsoft.com> CC: Haiyang Zhang <haiyangz@microsoft.com> CC: Vitaly Kuznetsov <vkuznets@redhat.com> CC: Roman Kagan <rkagan@virtuozzo.com> CC: Denis V. Lunev <den@openvz.org> CC: qemu-devel@nongnu.org Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-12-16net: fix warnings in 'make htmldocs' by moving macro definition out of field ↵Hannes Frederic Sowa
declaration Docbook does not like the definition of macros inside a field declaration and adds a warning. Move the definition out. Fixes: 79462ad02e86180 ("net: add validation for the socket syscall protocol argument") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16pwm: Add PWM driver for OMAP using dual-mode timersNeil Armstrong
Adds support for using a OMAP dual-mode timer with PWM capability as a Linux PWM device. The driver controls the timer by using the dmtimer API. Add a platform_data structure for each pwm-omap-dmtimer nodes containing the dmtimers functions in order to get driver not rely on platform specific functions. Cc: Grant Erickson <marathon96@gmail.com> Cc: NeilBrown <neilb@suse.de> Cc: Joachim Eastwood <manabian@gmail.com> Suggested-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Neil Armstrong <narmstrong@baylibre.com> Acked-by: Tony Lindgren <tony@atomide.com> [thierry.reding@gmail.com: coding style bikeshed, fix timer leak] Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
2015-12-16usb: musb: core: Fix handling of the phy notificationsTony Lindgren
We currently can't unload omap2430 MUSB platform glue driver module and this cause issues for fixing the MUSB code further. The reason we can't remove omap2430 is because it uses the PHY functions and also exports the omap_musb_mailbox function that some PHY drivers are using. Let's fix the issue by exporting a more generic musb_mailbox function from the MUSB core and allow platform glue layers to register phy_callback function as needed. And now we can now also get rid of the include/linux/musb-omap.h. Cc: Bin Liu <b-liu@ti.com> Cc: Felipe Balbi <balbi@ti.com> Cc: Kishon Vijay Abraham I <kishon@ti.com> Cc: NeilBrown <neil@brown.name> Reviewed-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: udc-core: independent registration of gadgets and gadget driversRuslan Bilovol
Change behavior during registration of gadgets and gadget drivers in udc-core. Instead of previous approach when for successful probe of usb gadget driver at least one usb gadget should be already registered use another one where gadget drivers and gadgets can be registered in udc-core independently. Independent registration of gadgets and gadget drivers is useful for built-in into kernel gadget and gadget driver case - because it's possible that gadget is really probed only on late_init stage (due to deferred probe) whereas gadget driver's probe is silently failed on module_init stage due to no any UDC added. Also it is useful for modules case - now there is no difference what module to insert first: gadget module or gadget driver one. Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> [simplified code as requested by Alan Stern and Felipe Balbi, fixed checkpatch issues] Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: udc-core: remove unused usb_udc_attach_driver()Ruslan Bilovol
Now when last user of usb_udc_attach_driver() is switched to passing UDC name via usb_gadget_driver struct, it's safe to remove this function Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16usb: gadget: bind UDC by name passed via usb_gadget_driver structureRuslan Bilovol
Introduce new 'udc_name' member to usb_gadget_driver structure. The 'udc_name' is a name of UDC that usb_gadget_driver should be bound to. If udc_name is NULL, it will be bound to any available UDC. Tested-by: Maxime Ripard <maxime.ripard@free-electrons.com> Signed-off-by: Ruslan Bilovol <ruslan.bilovol@gmail.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Tested-by: Peter Chen <peter.chen@freescale.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-16geneve: Add geneve_get_rx_port supportSinghai, Anjali
This patch adds an op that the drivers can call into to get existing geneve ports. Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16geneve: Add geneve udp port offload for ethernet devicesSinghai, Anjali
Add ndo_ops to add/del UDP ports to a device that supports geneve offload. v2: Comment fix. Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com> Signed-off-by: Kiran Patil <kiran.patil@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16net: sctp: dynamically enable or disable pf stateZhu Yanjun
As we all know, the value of pf_retrans >= max_retrans_path can disable pf state. The variables of pf_retrans and max_retrans_path can be changed by the userspace application. Sometimes the user expects to disable pf state while the 2 variables are changed to enable pf state. So it is necessary to introduce a new variable to disable pf state. According to the suggestions from Vlad Yasevich, extra1 and extra2 are removed. The initialization of pf_enable is added. Acked-by: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by: Zhu Yanjun <zyjzyj2000@gmail.com> Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16clk: samsung: exynos5420: add cpu clock configuration data and instantiate ↵Thomas Abraham
cpu clock With the addition of the new Samsung specific cpu-clock type, the arm clock can be represented as a cpu-clock type. Add the CPU clock configuration data and instantiate the CPU clock type for Exynos5420. Changes by Bartlomiej: - split Exynos5420 support from the original patches - moved E5420_[EGL,KFC]_DIV0() macros to clk-exynos5420.c Signed-off-by: Thomas Abraham <thomas.ab@samsung.com> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2015-12-16clk: samsung: exynos542x: add missing parent GSCL block clocksMarek Szyprowski
This patch adds clocks, which are required for preserving parent clock configuration on GSCL power domain on/off. Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
2015-12-16irqchip/gic: Support RealView variant setupLinus Walleij
The ARM RealView PB11MPCore reference design has some special bits in a system controller register to set up the GIC in one of three modes: legacy, new with DCC, new without DCC. The register is also used to enable FIQ. Since the platform will not boot unless this register is set up to "new with DCC" mode, we need a special quirk to be compiled-in for the RealView platforms. If we find the right compatible string on the GIC TestChip, we enable this quirk by looking up the system controller and enabling the special bits. We depend on the CONFIG_REALVIEW_DT Kconfig symbol as the old boardfile code has the same fix hardcoded, and this is only needed for the attempts to modernize the RealView code using device tree. After fixing this, the PB11MPCore boots with device tree only. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Jason Cooper <jason@lakedaemon.net> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-16platform-msi: Allow creation of a MSI-based stacked irq domainMarc Zyngier
We almost have all the needed bits requiredable to create a irq domain on top of a MSI domain. For this, we enable a few things: - the virq is stored in the msi_desc - device, msi_alloc_info and domain-specific data are stored in the platform_priv_data structure - we introduce a new API for platform-msi: /* Create a MSI-based domain */ struct irq_domain * platform_msi_create_device_domain(struct device *dev, unsigned int nvec, irq_write_msi_msg_t write_msi_msg, const struct irq_domain_ops *ops, void *host_data); /* Allocate MSIs in an MSI domain */ int platform_msi_domain_alloc(struct irq_domain *domain, unsigned int virq, unsigned int nr_irqs); /* Free MSIs from an MSI domain */ void platform_msi_domain_free(struct irq_domain *domain, unsigned int virq, unsigned int nvec); /* Obtain the host data passed to platform_msi_create_device_domain */ void *platform_msi_get_host_data(struct irq_domain *domain); platform_msi_create_device_domain() is a hybrid of irqdomain creation and interrupt allocation, creating a domain backed by the MSIs associated to a device. IRQs can then be allocated in that domain using platform_msi_domain_alloc(). This now allows a wired irq to MSI bridge to be created. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-16genirq/msi: Add msi_domain_populate_irqsMarc Zyngier
To be able to allocate interrupts from the MSI layer down, add a new msi_domain_populate_irqs entry point. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-16genirq/msi: Make the .prepare callback reusableMarc Zyngier
The .prepare callbacks are so far only called from msi_domain_alloc_irqs. In order to reuse that code, split that code and create a msi_domain_prepare_irqs function that the existing code can call into. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-16irqdomain: Make irq_domain_alloc_irqs_recursive availableMarc Zyngier
We are soon going to need the MSI layer to call into the domain allocators. Instead of open coding this, make the standard irq_domain_alloc_irqs_recursive function available to the MSI layer. Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
2015-12-16ssb: pick SoC invariants code from MIPS BCM47xx archRafał Miłecki
There is code in ssb fetching "invariants" that is basically a set of board specific data. Every host requires its own implementation of reading function. In ssb we have support for PCI, PCMCIA & SDIO. For some (historical?) reason code reading "invariants" for SoC was placed in arch code and provided by a callback. This is not needed nowadays, so lets move that into ssb. This way we keep all "invariants" functions in a single module making code cleaner. Signed-off-by: Rafał Miłecki <zajec5@gmail.com> Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2015-12-16inet: tcp: fix inetpeer_set_addr_v4()Eric Dumazet
David Ahern added a vif field in the a4 part of inetpeer_addr struct. This broke IPv4 TCP fast open client side and more generally tcp metrics cache, because inetpeer_addr_cmp() is now comparing two u32 instead of one. inetpeer_set_addr_v4() needs to properly init vif field, otherwise the comparison result depends on uninitialized data. Fixes: 192132b9a034 ("net: Add support for VRFs to inetpeer cache") Reported-by: Yuchung Cheng <ycheng@google.com> Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Neal Cardwell <ncardwell@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15net: diag: Support destroying TCP sockets.Lorenzo Colitti
This implements SOCK_DESTROY for TCP sockets. It causes all blocking calls on the socket to fail fast with ECONNABORTED and causes a protocol close of the socket. It informs the other end of the connection by sending a RST, i.e., initiating a TCP ABORT as per RFC 793. ECONNABORTED was chosen for consistency with FreeBSD. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15net: diag: Support SOCK_DESTROY for inet sockets.Lorenzo Colitti
This passes the SOCK_DESTROY operation to the underlying protocol diag handler, or returns -EOPNOTSUPP if that handler does not define a destroy operation. Most of this patch is just renaming functions. This is not strictly necessary, but it would be fairly counterintuitive to have the code to destroy inet sockets be in a function whose name starts with inet_diag_get. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15net: diag: Add the ability to destroy a socket.Lorenzo Colitti
This patch adds a SOCK_DESTROY operation, a destroy function pointer to sock_diag_handler, and a diag_destroy function pointer. It does not include any implementation code. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15net: diag: split inet_diag_dump_one_icsk into twoLorenzo Colitti
Currently, inet_diag_dump_one_icsk finds a socket and then dumps its information to userspace. Split it into a part that finds the socket and a part that dumps the information. Signed-off-by: Lorenzo Colitti <lorenzo@google.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15ila: Add generic ILA translation facilityTom Herbert
This patch implements an ILA tanslation table. This table can be configured with identifier to locator mappings, and can be be queried to resolve a mapping. Queries can be parameterized based on interface, direction (incoming or outoing), and matching locator. The table is implemented using rhashtable and is configured via netlink (through "ip ila .." in iproute). The table may be used as alternative means to do do ILA tanslations other than the lw tunnels Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15netlink: add a start callback for starting a netlink dumpTom Herbert
The start callback allows the caller to set up a context for the dump callbacks. Presumably, the context can then be destroyed in the done callback. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15rhashtable: add function to replace an elementTom Herbert
Add the rhashtable_replace_fast function. This replaces one object in the table with another atomically. The hashes of the new and old objects must be equal. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-16Merge tag 'mvebu-soc-4.5-1' of git://git.infradead.org/linux-mvebu into ↵Arnd Bergmann
next/multiplatform Merge "mvebu soc for 4.5 (part 1)" from Gregory CLEMENT: - orion5x/mv78xx0 multiplatform conversion - legacy dove PMU support conversion * tag 'mvebu-soc-4.5-1' of git://git.infradead.org/linux-mvebu: ARM: dove: convert legacy dove to PMU support soc: dove: add legacy support to PMU driver ARM: orion5x: multiplatform support ARM: orion5x: clean up mach/*.h headers ARM: mv78xx0: multiplatform support ARM: mv78xx0: clean up mach/*.h headers ARM: orion: use SPARSE_IRQ everywhere ARM: orion: always use MULTI_IRQ_HANDLER ARM: orion: move watchdog setup to mach-orion5x Conflicts: arch/arm/Kconfig arch/arm/mach-dove/include/mach/entry-macro.S arch/arm/mach-orion5x/include/mach/entry-macro.S
2015-12-16Merge tag 'omap-for-v4.5/81xx-fixes-signed' of ↵Arnd Bergmann
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/fixes-non-critical Merge "omap fixes for 81xx for v4.5 merge window" from Tony Lindgren: Fixes for ti81xx for v4.5 merge window. We have hp t410 already booting in mainline kernel with it's bootloader configured clocks. However, trying to boot dm814x-evm uncovered all kind of issues with the timer clock. To keep t410 booting, these issues need to be fixed in a specific order and this branch contains both device tree and code changes. To summarize the changes, we had missing ranges for clocks to probe, missing aliase for clocks, wrong registers for divder clocks, and bad address for the control module. All these went unnoticed earlier as things worked without errors by luck and I did not pay much attention to them until I got hold of a dm814x-evm and I noticed it did not boot. As these are fixes for features that never worked, these can wait for v4.5 merge window no problem. * tag 'omap-for-v4.5/81xx-fixes-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Remove useless check for legacy booting for dm814x ARM: OMAP2+: Enable GPIO for dm814x ARM: dts: Fix dm814x pinctrl address and mask ARM: dts: Fix dm8148 control modules ranges ARM: OMAP2+: Fix timer entries for dm814x ARM: dts: Fix some mux and divider clocks to get dm814x-evm booting ARM: OMAP2+: Add DPPLS clock manager for dm814x clk: ti: Add few dm814x clock aliases ARM: dts: Fix dm814x entries for pllss and prcm
2015-12-15Merge branch 'mmp/multiplatform' into next/multiplatformArnd Bergmann
* mmp/multiplatform: ARM: mmp: avoid unused functions ARM: mmp: move into ARCH_MULTIPLATFORM ARM: mmp: make all header files local ARM: mmp: make plat-pxa build standalone ARM: mmp: remove remaining legacy pxa-dma support ARM: mohawk: allow building with MMU disabled ARM: make xscale iwmmxt code multiplatform aware clk: mmp: stop using platform headers
2015-12-15net: Elaborate on checksum offload interface descriptionTom Herbert
Add specifics and details the description of the interface between the stack and drivers for doing checksum offload. This description is meant to be as specific and complete as possible. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15net: Add driver helper functions to determine checksum offloadabilityTom Herbert
Add skb_csum_offload_chk driver helper function to determine if a device with limited checksum offload capabilities is able to offload the checksum for a given packet. This patch includes: - The skb_csum_offload_chk function. Returns true if checksum is offloadable, else false. Optionally, in the case that the checksum is not offloable, the function can call skb_checksum_help to resolve the checksum. skb_csum_offload_chk also returns whether the checksum refers to an encapsulated checksum. - Definition of skb_csum_offl_spec structure that caller uses to indicate rules about what it can offload (e.g. IPv4/v6, TCP/UDP only, whether encapsulated checksums can be offloaded, whether checksum with IPv6 extension headers can be offloaded). - Ancilary functions called skb_csum_offload_chk_help, skb_csum_off_chk_help_cmn, skb_csum_off_chk_help_cmn_v4_only. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15tcp: Fix conditions to determine checksum offloadTom Herbert
In tcp_send_sendpage and tcp_sendmsg we check the route capabilities to determine if checksum offload can be performed. This check currently does not take the IP protocol into account for devices that advertise only one of NETIF_F_IPV6_CSUM or NETIF_F_IP_CSUM. This patch adds a function to check capabilities for checksum offload with a socket called sk_check_csum_caps. This function checks for specific IPv4 or IPv6 offload support based on the family of the socket. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15net: Eliminate NETIF_F_GEN_CSUM and NETIF_F_V[46]_CSUMTom Herbert
These netif flags are unnecessary convolutions. It is more straightforward to just use NETIF_F_HW_CSUM, NETIF_F_IP_CSUM, and NETIF_F_IPV6_CSUM directly. This patch also: - Cleans up can_checksum_protocol - Simplifies netdev_intersect_features Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15net: Rename NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASKTom Herbert
The name NETIF_F_ALL_CSUM is a misnomer. This does not correspond to the set of features for offloading all checksums. This is a mask of the checksum offload related features bits. It is incorrect to set both NETIF_F_HW_CSUM and NETIF_F_IP_CSUM or NETIF_F_IPV6 at the same time for features of a device. This patch: - Changes instances of NETIF_F_ALL_CSUM to NETIF_F_CSUM_MASK (where NETIF_F_ALL_CSUM is being used as a mask). - Changes bonding, sfc/efx, ipvlan, macvlan, vlan, and team drivers to use NEITF_F_HW_CSUM in features list instead of NETIF_F_ALL_CSUM. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15sctp: Rename NETIF_F_SCTP_CSUM to NETIF_F_SCTP_CRCTom Herbert
The SCTP checksum is really a CRC and is very different from the standards 1's complement checksum that serves as the checksum for IP protocols. This offload interface is also very different. Rename NETIF_F_SCTP_CSUM to NETIF_F_SCTP_CRC to highlight these differences. The term CSUM should be reserved in the stack to refer to the standard 1's complement IP checksum. Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15net: Add skb_inner_transport_offset functionTom Herbert
Same thing as skb_transport_offset but returns the offset of the inner transport header (when skb->encpasulation is set). Signed-off-by: Tom Herbert <tom@herbertland.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15Merge branch 'rdma-cq.2' of git://git.infradead.org/users/hch/rdma into ↵Doug Ledford
4.5/rdma-cq Signed-off-by: Doug Ledford <dledford@redhat.com> Conflicts: drivers/infiniband/ulp/srp/ib_srp.c - Conflicts with changes in ib_srp.c introduced during 4.4-rc updates
2015-12-15Merge tag 'dmaengine-fix-4.4-rc6' of ↵Linus Torvalds
git://git.infradead.org/users/vkoul/slave-dma Pull dmaengine fixes from Vinod Koul: "This has fixes spread thru driver, notably among them: - edma fixes for recent edma DT changes which went into 4.4 - odd fixes for at_hdmac - minor fixes on bc dma and mic dma" * tag 'dmaengine-fix-4.4-rc6' of git://git.infradead.org/users/vkoul/slave-dma: dmaengine: at_xdmac: fix at_xdmac_prep_dma_memcpy() dmaengine: edma: DT: Change reserved slot array from 16bit to 32bit type dmaengine: edma: DT: Change memcpy channel array from 16bit to 32bit type dmaengine: mic_x100: add missing spin_unlock dmaengine: bcm2835-dma: Convert to use DMA pool dmaengine: at_xdmac: fix bad behavior in interleaved mode dmaengine: at_xdmac: fix false condition for memset_sg transfers dmaengine: at_xdmac: fix macro typo
2015-12-15switchdev: Pass original device to port netdev driverIdo Schimmel
switchdev drivers need to know the netdev on which the switchdev op was invoked. For example, the STP state of a VLAN interface configured on top of a port can change while being member in a bridge. In this case, the underlying driver should only change the STP state of that particular VLAN and not of all the VLANs configured on the port. However, current switchdev infrastructure only passes the port netdev down to the driver. Solve that by passing the original device down to the driver as part of the required switchdev object / attribute. This doesn't entail any change in current switchdev drivers. It simply enables those supporting stacked devices to know the originating device and act accordingly. Signed-off-by: Ido Schimmel <idosch@mellanox.com> Signed-off-by: Jiri Pirko <jiri@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-12-15Merge tag 'arm-soc/for-4.5/cleanup' of git://git.infradead.org/linux-mtd ↵Arnd Bergmann
into next/cleanup Merge "MTD/NAND cleanups for v4.5" from Brian Norris: Two changes for NAND/MTD refactoring. The mtd_to_nand() helper will allow us to stop using mtd->priv for NAND drivers. * tag 'arm-soc/for-4.5/cleanup' of git://git.infradead.org/linux-mtd: ARM: nand: make use of mtd_to_nand() where appropriate mtd: nand: add an mtd_to_nand() helper
2015-12-15usb: phy: Remove unused Renesas R-Car (Gen1) USB PHY driverGeert Uytterhoeven
As of commit 3d7608e4c169af03 ("ARM: shmobile: bockw: remove legacy board file and config"), the Renesas R-Car (Gen1) USB PHY driver is no longer used. In theory it could still be used on R-Car Gen1 SoCs, but that would require adding DT support to the driver. Instead, a new driver using the generic PHY framework should be written, as was done for R-Car Gen2. Remove the driver for good. Acked-by: Simon Horman <horms+renesas@verge.net.au> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: of: add an api to get dr_mode by the phy nodeBin Liu
Some USB phy drivers have different handling for the controller in each dr_mode. But the phy driver does not have visibility to the dr_mode of the controller. This adds an api to return the dr_mode of the controller which associates the given phy node. Signed-off-by: Bin Liu <b-liu@ti.com> Signed-off-by: Felipe Balbi <balbi@ti.com>
2015-12-15usb: renesas_usbhs: Modify pipe configurationYoshihiro Shimoda
The current code has info->bufnmb_last to calculate the BUFNMB bits of PIPEBUF register. However, since the bufnmb_last is initialized in the usbhs_pipe_init() only, this driver is possible to set unexpected value to the register if usb_ep_{enable,disable}() are called many times. So, this patch modifies the pipe configuration via struct renesas_usbhs_driver_param to simplify the code. Also this patch changes: - a double buffer configuration - isochronous buffer size from 512 to 1024 Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> Signed-off-by: Felipe Balbi <balbi@ti.com>