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2014-01-14Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
2014-01-13net: resort some Kbuild files to hopefully help avoid some conflictsStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-10Merge tag 'clk-fixes-for-linus' of ↵Linus Torvalds
git://git.linaro.org/people/mike.turquette/linux Pull clock fixes from Mike Turquette: "Late fixes for clock drivers. All of these fixes are for user-visible regressions, typically boot failures or other unsafe system configuration that causes badness" * tag 'clk-fixes-for-linus' of git://git.linaro.org/people/mike.turquette/linux: clk: clk-divider: fix divisor > 255 bug clk: exynos: File scope reg_save array should depend on PM_SLEEP clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg clock ARM: dts: exynos5250: Fix MDMA0 clock number clk: samsung: exynos5250: Add MDMA0 clocks clk: samsung: exynos5250: Fix ACP gate register offset clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks clk: samsung: exynos4: Correct SRC_MFC register
2014-01-10Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "A few fixes for Renesas platforms to fixup DMA masks (this started causing errors once the DMA API added checks for valid masks in 3.13)" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: shmobile: mackerel: Fix coherent DMA mask ARM: shmobile: kzm9g: Fix coherent DMA mask ARM: shmobile: armadillo: Fix coherent DMA mask
2014-01-08parisc: Ensure full cache coherency for kmap/kunmapJohn David Anglin
Helge Deller noted a few weeks ago problems with the AIO support on parisc. This change is the result of numerous iterations on how best to deal with this problem. The solution adopted here is to provide full cache coherency in a uniform manner on all parisc systems. This involves calling flush_dcache_page() on kmap operations and flush_kernel_dcache_page() on kunmap operations. As a result, the copy_user_page() and clear_user_page() functions can be removed and the overall code is simpler. The change ensures that both userspace and kernel aliases to a mapped page are invalidated and flushed. This is necessary for the correct operation of PA8800 and PA8900 based systems which do not support inequivalent aliases. With this change, I have observed no cache related issues on c8000 and rp3440. It is now possible for example to do kernel builds with "-j64" on four way systems. On systems using XFS file systems, the patch recently posted by Mikulas Patocka to "fix crash using XFS on loopback" is needed to avoid a hang caused by an uninitialized lock passed to flush_dcache_page() in the page struct. Signed-off-by: John David Anglin <dave.anglin@bell.net> Cc: stable@vger.kernel.org # v3.9+ Signed-off-by: Helge Deller <deller@gmx.de>
2014-01-06Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller
Conflicts: drivers/net/ethernet/qlogic/qlcnic/qlcnic_sriov_pf.c net/ipv6/ip6_tunnel.c net/ipv6/ip6_vti.c ipv6 tunnel statistic bug fixes conflicting with consolidation into generic sw per-cpu net stats. qlogic conflict between queue counting bug fix and the addition of multiple MAC address support. Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-05Merge tag 'samsung-clk-fixes' of ↵Mike Turquette
git://git.kernel.org/pub/scm/linux/kernel/git/tfiga/samsung-clk into clk-fixes Samsung Clock fixes for 3.13-rc7 * Several patches fixing up incorrectly defined register addresses and bitfield offsets that could lead to undefined operation when accessing respective registers or bitfields. 1) clk: exynos5250: fix sysmmu_mfc{l,r} gate clocks 2a) clk: samsung: exynos5250: Fix ACP gate register offset 2b) clk: samsung: exynos5250: Add MDMA0 clocks 2c) ARM: dts: exynos5250: Fix MDMA0 clock number 3) clk: samsung: exynos4: Correct SRC_MFC register All three issues have been present since Exynos5250 and Exynos4 clock drivers were added by commits 6e3ad26816b72 ("clk: exynos5250: register clocks using common clock framework") and e062b571777f5 ("clk: exynos4: register clocks using common clock framework") respectively. * Patch to fix automatic disabling of Exynos5250 sysreg clock that could cause undefined operation of several peripherals, such as USB, I2C, MIPI or display block. 4) clk: samsung: exynos5250: Add CLK_IGNORE_UNUSED flag for the sysreg clock Present since Exynos5250 clock drivers was added by commits 6e3ad26816b72 ("clk: exynos5250: register clocks using common clock framework"). * Patch fixing compilation warning in clk-exynos-audss driver when CONFIG_PM_SLEEP is disabled. 5) clk: exynos: File scope reg_save array should depend on PM_SLEEP Present since the driver was added by commit 1241ef94ccc3 ("clk: samsung: register audio subsystem clocks using common clock framework").
2014-01-06Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-armLinus Torvalds
Pull ARM fixes from Russell King: "Another set of small fixes for ARM, covering various areas. Laura fixed a long standing issue with virt_addr_valid() failing to handle holes in memory. Steve found a problem with dcache flushing for compound pages. I fixed another bug in footbridge stuff causing time to tick slowly, and also a problem with the AES code which can cause linker errors. A patch from Rob which fixes Xen problems induced by a lack of consistency in our naming of ioremap_cache() - which thankfully has very few users" * 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: ARM: 7933/1: rename ioremap_cached to ioremap_cache ARM: fix "bad mode in ... handler" message for undefined instructions CRYPTO: Fix more AES build errors ARM: 7931/1: Correct virt_addr_valid ARM: 7923/1: mm: fix dcache flush logic for compound high pages ARM: fix footbridge clockevent device
2014-01-05ARM: 7933/1: rename ioremap_cached to ioremap_cacheRob Herring
ioremap_cache is more aligned with other architectures. There are only 2 users of this in the kernel: pxa2xx-flash and Xen. This fixes Xen build failures on arm64: drivers/tty/hvc/hvc_xen.c:233:2: error: implicit declaration of function 'ioremap_cached' [-Werror=implicit-function-declaration] drivers/xen/grant-table.c:1174:3: error: implicit declaration of function 'ioremap_cached' [-Werror=implicit-function-declaration] drivers/xen/xenbus/xenbus_probe.c:778:4: error: implicit declaration of function 'ioremap_cached' [-Werror=implicit-function-declaration] Signed-off-by: Rob Herring <rob.herring@calxeda.com> Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-05ARM: fix "bad mode in ... handler" message for undefined instructionsRussell King
The array was missing the final entry for the undefined instruction exception handler; this commit adds it. Cc: <stable@vger.kernel.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-05CRYPTO: Fix more AES build errorsRussell King
Building a multi-arch kernel results in: arch/arm/crypto/built-in.o: In function `aesbs_xts_decrypt': sha1_glue.c:(.text+0x15c8): undefined reference to `bsaes_xts_decrypt' arch/arm/crypto/built-in.o: In function `aesbs_xts_encrypt': sha1_glue.c:(.text+0x1664): undefined reference to `bsaes_xts_encrypt' arch/arm/crypto/built-in.o: In function `aesbs_ctr_encrypt': sha1_glue.c:(.text+0x184c): undefined reference to `bsaes_ctr32_encrypt_blocks' arch/arm/crypto/built-in.o: In function `aesbs_cbc_decrypt': sha1_glue.c:(.text+0x19b4): undefined reference to `bsaes_cbc_encrypt' This code is already runtime-conditional on NEON being supported, so there's no point compiling it out depending on the minimum build architecture. Acked-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2014-01-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparcLinus Torvalds
Pull sparc bugfixes from David Miller: 1) Missing include can lead to build failure, from Kirill Tkhai. 2) Use dev_is_pci() where applicable, from Yijing Wang. 3) Enable irqs after we enable preemption in cpu startup path, from Kirill Tkhai. 4) Revert a __copy_{to,from}_user_inatomic change that broke iov_iter_copy_from_user_atomic() and thus several tests in xfstests and LTP. From Dave Kleikamp. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc: Revert "sparc64: Fix __copy_{to,from}_user_inatomic defines." sparc64: smp_callin: Enable irqs after preemption is disabled sparc/PCI: Use dev_is_pci() to identify PCI devices sparc64: Fix build regression
2014-01-04Revert "sparc64: Fix __copy_{to,from}_user_inatomic defines."Dave Kleikamp
This reverts commit 145e1c0023585e0e8f6df22316308ec61c5066b2. This commit broke the behavior of __copy_from_user_inatomic when it is only partially successful. Instead of returning the number of bytes not copied, it now returns 1. This translates to the wrong value being returned by iov_iter_copy_from_user_atomic. xfstests generic/246 and LTP writev01 both fail on btrfs and nfs because of this. Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com> Cc: Hugh Dickins <hughd@google.com> Cc: David S. Miller <davem@davemloft.net> Cc: sparclinux@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-04sparc64: smp_callin: Enable irqs after preemption is disabledKirill Tkhai
Most of other architectures have below suggested order. So lets do the same to fit generic idle loop scheme better. Signed-off-by: Kirill Tkhai <tkhai@yandex.ru> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-04sparc/PCI: Use dev_is_pci() to identify PCI devicesYijing Wang
Use dev_is_pci() instead of checking bus type directly. Signed-off-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-01-02Merge git://git.kernel.org/pub/scm/virt/kvm/kvmLinus Torvalds
Pull kvm bugfixes from Marcelo Tosatti. * git://git.kernel.org/pub/scm/virt/kvm/kvm: KVM: nVMX: Unconditionally uninit the MMU on nested vmexit KVM: x86: Fix APIC map calculation after re-enabling
2014-01-02Merge branch 'akpm' (incoming from Andrew)Linus Torvalds
Merge patches from Andrew Morton: "Ten fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: epoll: do not take the nested ep->mtx on EPOLL_CTL_DEL sh: add EXPORT_SYMBOL(min_low_pfn) and EXPORT_SYMBOL(max_low_pfn) to sh_ksyms_32.c drivers/dma/ioat/dma.c: check DMA mapping error in ioat_dma_self_test() mm/memory-failure.c: transfer page count from head page to tail page after split thp MAINTAINERS: set up proper record for Xilinx Zynq mm: remove bogus warning in copy_huge_pmd() memcg: fix memcg_size() calculation mm: fix use-after-free in sys_remap_file_pages mm: munlock: fix deadlock in __munlock_pagevec() mm: munlock: fix a bug where THP tail page is encountered
2014-01-02sh: add EXPORT_SYMBOL(min_low_pfn) and EXPORT_SYMBOL(max_low_pfn) to ↵Nobuhiro Iwamatsu
sh_ksyms_32.c Min_low_pfn and max_low_pfn were used in pfn_valid macro if defined CONFIG_FLATMEM. When the functions that use the pfn_valid is used in driver module, max_low_pfn and min_low_pfn is to undefined, and fail to build. ERROR: "min_low_pfn" [drivers/block/aoe/aoe.ko] undefined! ERROR: "max_low_pfn" [drivers/block/aoe/aoe.ko] undefined! make[2]: *** [__modpost] Error 1 make[1]: *** [modules] Error 2 This patch fix this problem. Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com> Cc: Kuninori Morimoto <kuninori.morimoto.gx@gmail.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2014-01-02Merge branch 'for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Martin Schwidefsky: "Two small bug fixes and a follow-up to the CONFIG_NR_CPUS change. A kernel compiled with CONFIG_NR_CPUS=256 will waste quite a bit of memory for the per-cpu arrays. Under z/VM the maximum number of CPUs is 64, the code now limits the possible cpu mask to 64 if running under z/VM" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/pci: obtain function handle in hotplug notifier s390/3270: fix allocation of tty3270_screen structure s390/smp: improve setup of possible cpu mask
2014-01-02Merge tag 'renesas-fixes3-for-v3.13' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes From Simon Horman: Third Round of Renesas ARM based SoC Fixes for v3.13 * sh7372 (SH-Mobile AP4) based Mackerel board r8a773a0 (SH-Mobile AG5) based kzm9g board r8a7740 (R-Mobile A1) based Armadillo board - Correct coherent DMA mask This resolves regressions introduced by 4dcfa60071b3d23f ("ARM: DMA-API: better handing of DMA masks for coherent allocations") in v3.12-rc1. * tag 'renesas-fixes3-for-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: mackerel: Fix coherent DMA mask ARM: shmobile: kzm9g: Fix coherent DMA mask ARM: shmobile: armadillo: Fix coherent DMA mask Signed-off-by: Olof Johansson <olof@lixom.net>
2014-01-02KVM: nVMX: Unconditionally uninit the MMU on nested vmexitJan Kiszka
Three reasons for doing this: 1. arch.walk_mmu points to arch.mmu anyway in case nested EPT wasn't in use. 2. this aligns VMX with SVM. But 3. is most important: nested_cpu_has_ept(vmcs12) queries the VMCS page, and if one guest VCPU manipulates the page of another VCPU in L2, we may be fooled to skip over the nested_ept_uninit_mmu_context, leaving mmu in nested state. That can crash the host later on if nested_ept_get_cr3 is invoked while L1 already left vmxon and nested.current_vmcs12 became NULL therefore. Cc: stable@kernel.org Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-12-30KVM: x86: Fix APIC map calculation after re-enablingJan Kiszka
Update arch.apic_base before triggering recalculate_apic_map. Otherwise the recalculation will work against the previous state of the APIC and will fail to build the correct map when an APIC is hardware-enabled again. This fixes a regression of 1e08ec4a13. Cc: stable@vger.kernel.org Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
2013-12-30Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc Pull powerpc fixes from Ben Herrenschmidt: "A bit more endian problems found during testing of 3.13 and a few other simple fixes and regressions fixes" * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: powerpc: Fix alignment of secondary cpu spin vars powerpc: Align p_end powernv/eeh: Add buffer for P7IOC hub error data powernv/eeh: Fix possible buffer overrun in ioda_eeh_phb_diag() powerpc: Make 64-bit non-VMX __copy_tofrom_user bi-endian powerpc: Make unaligned accesses endian-safe for powerpc powerpc: Fix bad stack check in exception entry powerpc/512x: dts: disable MPC5125 usb module powerpc/512x: dts: remove misplaced IRQ spec from 'soc' node (5125)
2013-12-30ARM: dts: exynos5250: Fix MDMA0 clock numberAbhilash Kesavan
Due to incorrect clock specified in MDMA0 node, using MDMA0 controller could cause system failures, due to wrong clock being controlled. This patch fixes this by specifying correct clock. Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com> Acked-by: Mike Turquette <mturquette@linaro.org> [t.figa: Corrected commit message and description.] Signed-off-by: Tomasz Figa <t.figa@samsung.com>
2013-12-30s390/pci: obtain function handle in hotplug notifierSebastian Ott
When using the CLP interface to enable or disable a pci device a valid function handle needs to be delivered. So far our assumption was that we always have an up-to-date version of the function handle (since it doesn't change when the device is in use). This assumption is incorrect if the pci device is enabled or disabled outside of our control. When we are notified about such a change we already receive the new function handle. Just use it. Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com> Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-12-30Merge remote-tracking branch 'agust/merge' into mergeBenjamin Herrenschmidt
Anatolij writes: Please pull two DTS fixes for MPC5125 tower board. Without them the v3.13-rcX kernels do not boot.
2013-12-30powerpc: Fix alignment of secondary cpu spin varsOlof Johansson
Commit 5c0484e25ec0 ('powerpc: Endian safe trampoline') resulted in losing proper alignment of the spinlock variables used when booting secondary CPUs, causing some quite odd issues with failing to boot on PA Semi-based systems. This showed itself on ppc64_defconfig, but not on pasemi_defconfig, so it had gone unnoticed when I initially tested the LE patch set. Fix is to add explicit alignment instead of relying on good luck. :) [ It appears that there is a different issue with PA Semi systems however this fix is definitely correct so applying anyway -- BenH ] Fixes: 5c0484e25ec0 ('powerpc: Endian safe trampoline') Reported-by: Christian Zigotzky <chzigotzky@xenosoft.de> Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=67811 Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-30powerpc: Align p_endAnton Blanchard
p_end is an 8 byte value embedded in the text section. This means it is only 4 byte aligned when it should be 8 byte aligned. Fix this by adding an explicit alignment. This fixes an issue where POWER7 little endian builds with CONFIG_RELOCATABLE=y fail to boot. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-30powernv/eeh: Add buffer for P7IOC hub error dataBrian W Hart
Prevent ioda_eeh_hub_diag() from clobbering itself when called by supplying a per-PHB buffer for P7IOC hub diagnostic data. Take care to inform OPAL of the correct size for the buffer. [Small style change to the use of sizeof -- BenH] Signed-off-by: Brian W Hart <hartb@linux.vnet.ibm.com> Acked-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-30powernv/eeh: Fix possible buffer overrun in ioda_eeh_phb_diag()Brian W Hart
PHB diagnostic buffer may be smaller than PAGE_SIZE, especially when PAGE_SIZE > 4KB. Signed-off-by: Brian W Hart <hartb@linux.vnet.ibm.com> Acked-by: Gavin Shan <shangw@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-30powerpc: Make 64-bit non-VMX __copy_tofrom_user bi-endianPaul E. McKenney
The powerpc 64-bit __copy_tofrom_user() function uses shifts to handle unaligned invocations. However, these shifts were designed for big-endian systems: On little-endian systems, they must shift in the opposite direction. This commit relies on the C preprocessor to insert the correct shifts into the assembly code. [ This is a rare but nasty LE issue. Most of the time we use the POWER7 optimised __copy_tofrom_user_power7 loop, but when it hits an exception we fall back to the base __copy_tofrom_user loop. - Anton ] Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-30powerpc: Make unaligned accesses endian-safe for powerpcRajesh B Prathipati
The generic put_unaligned/get_unaligned macros were made endian-safe by calling the appropriate endian dependent macros based on the endian type of the powerpc processor. Signed-off-by: Rajesh B Prathipati <rprathip@linux.vnet.ibm.com> Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-30powerpc: Fix bad stack check in exception entryMichael Neuling
In EXCEPTION_PROLOG_COMMON() we check to see if the stack pointer (r1) is valid when coming from the kernel. If it's not valid, we die but with a nice oops message. Currently we allocate a stack frame (subtract INT_FRAME_SIZE) before we check to see if the stack pointer is negative. Unfortunately, this won't detect a bad stack where r1 is less than INT_FRAME_SIZE. This patch fixes the check to compare the modified r1 with -INT_FRAME_SIZE. With this, bad kernel stack pointers (including NULL pointers) are correctly detected again. Kudos to Paulus for finding this. Signed-off-by: Michael Neuling <mikey@neuling.org> cc: stable@vger.kernel.org Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2013-12-29Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "Another smallish batch of fixes, it's been quiet due to the holidays. Nothing controversial here, a handful of things across the board" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: ARM: pxa: fix USB gadget driver compilation regression ARM: OMAP2+: Fix LCD panel backlight regression for LDP legacy booting ARM: OMAP2+: hwmod_data: fix missing OMAP_INTC_START in irq data ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL ARM: shmobile: r8a7790: fix shdi resource sizes ARM: shmobile: bockw: fixup DMA mask ARM: shmobile: armadillo: Add PWM backlight power supply
2013-12-29Merge branch 'x86-urgent-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 fixes from Peter Anvin: "There is a small EFI fix and a big power regression fix in this batch. My queue also had a fix for downing a CPU when there are insufficient number of IRQ vectors available, but I'm holding that one for now due to recent bug reports" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/efi: Don't select EFI from certain special ACPI drivers x86 idle: Repair large-server 50-watt idle-power regression
2013-12-29ARM: 7931/1: Correct virt_addr_validLaura Abbott
The definition of virt_addr_valid is that virt_addr_valid should return true if and only if virt_to_page returns a valid pointer. The current definition of virt_addr_valid only checks against the virtual address range. There's no guarantee that just because a virtual address falls bewteen PAGE_OFFSET and high_memory the associated physical memory has a valid backing struct page. Follow the example of other architectures and convert to pfn_valid to verify that the virtual address is actually valid. The check for an address between PAGE_OFFSET and high_memory is still necessary as vmalloc/highmem addresses are not valid with virt_to_page. Cc: Will Deacon <will.deacon@arm.com> Cc: Nicolas Pitre <nico@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Laura Abbott <lauraa@codeaurora.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-29ARM: 7923/1: mm: fix dcache flush logic for compound high pagesSteven Capper
When given a compound high page, __flush_dcache_page will only flush the first page of the compound page repeatedly rather than the entire set of constituent pages. This error was introduced by: 0b19f93 ARM: mm: Add support for flushing HugeTLB pages. This patch corrects the logic such that all constituent pages are now flushed. Cc: stable@vger.kernel.org # 3.10+ Signed-off-by: Steve Capper <steve.capper@linaro.org> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2013-12-29ARM: fix footbridge clockevent deviceRussell King
The clockevents code was being told that the footbridge clock event device ticks at 16x the rate which it actually does. This leads to timekeeping problems since it allows the clocksource to wrap before the kernel notices. Fix this by using the correct clock. Fixes: 4e8d76373c9fd ("ARM: footbridge: convert to clockevents/clocksource") Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: <stable@vger.kernel.org>
2013-12-28Merge tag 'omap-for-v3.13/intc-ldp-fix' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes From Tony Lindgren: Fix a regression for wrong interrupt numbers for some devices after the sparse IRQ conversion, fix DRA7 console output for earlyprintk, and fix the LDP LCD backlight when DSS is built into the kernel and not as a loadable module. * tag 'omap-for-v3.13/intc-ldp-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Fix LCD panel backlight regression for LDP legacy booting ARM: OMAP2+: hwmod_data: fix missing OMAP_INTC_START in irq data ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL + v3.13-rc5 Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-28Merge tag 'renesas-fixes2-for-v3.13' of ↵Olof Johansson
git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes From Simon Horman: Second Round of Renesas ARM based SoC Fixes for v3.13 * r8a7790 (R-Car H2) based Lager board - Correct SHDI resource sizes This bug has been present since sdhi resources were added to the r8a7790 by 8c9b1aa41853272a ("ARM: shmobile: r8a7790: add MMCIF and SDHI DT templates") in v3.11-rc2. * r8a7778 (R-Car M1) based Bock-W board - Correct DMA mask This resolves a regression introduced by 4dcfa60071b3d23f ("ARM: DMA-API: better handing of DMA masks for coherent allocations") in v3.12-rc1. * r8a7740 (R-Mobile A1) based Armadillo board - Add PWM backlight power supply This resolves a regression introduced by 22ceeee16eb8f0d0 ("pwm-backlight: Add power supply support") in v3.12. * tag 'renesas-fixes2-for-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas: ARM: shmobile: r8a7790: fix shdi resource sizes ARM: shmobile: bockw: fixup DMA mask ARM: shmobile: armadillo: Add PWM backlight power supply Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-28ARM: pxa: fix USB gadget driver compilation regressionLinus Walleij
After commit 88f718e3fa4d67f3a8dbe79a2f97d722323e4051 "ARM: pxa: delete the custom GPIO header" a compilation error was introduced in the PXA25x gadget driver. An attempt to fix the problem was made in commit b144e4ab1ef130e8bf30bcd3e529b7f35112c503 "usb: gadget: fix pxa25x compilation problems" by explictly stating the driver needs the <mach/hardware.h> header, which solved the compilation for a few boards, such as the pxa255-idp and its defconfig. However the Lubbock board has this special clause in drivers/usb/gadget/pxa25x_udc.c: This include file has an implicit dependency on <mach/irqs.h> having been included before <mach/lubbock.h> was included. Before commit 88f718e3fa4d67f3a8dbe79a2f97d722323e4051 "ARM: pxa: delete the custom GPIO header" this implicit dependency for the pxa25x_udc compile on the Lubbock was satisfied by <linux/gpio.h> implicitly including <mach/gpio.h> which was in turn including <mach/irqs.h>, apart from the earlier added <mach/hardware.h>. Fix this by having the PXA25x <mach/lubbock.h> explicitly include <mach/irqs.h>. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Cc: Greg Kroah-Hartmann <gregkh@linuxfoundation.org> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com> Signed-off-by: Olof Johansson <olof@lixom.net>
2013-12-27Merge tag 'for-v3.13-rc/hwmod-fixes-b' of ↵Tony Lindgren
git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into debug-ll-and-ldp-backlight-fix A few OMAP hwmod fixes for v3.13-rc. One patch fixes some IRQ problems with GPMC, RNG, and ISP/IVA MMUs on OMAP2/3. The other fixes some problems with DEBUG_LL on DRA7xx. Basic build, boot, and PM test logs are available here: http://www.pwsan.com/omap/testlogs/hwmod_fixes_b_v3.13-rc/20131226021920/
2013-12-27ARM: OMAP2+: Fix LCD panel backlight regression for LDP legacy bootingTony Lindgren
Looks like the LCD panel on LDP has been broken quite a while, and recently got fixed by commit 0b2aa8bed3e1 (gpio: twl4030: Fix regression for twl gpio output). However, there's still an issue left where the panel backlight does not come on if the LCD drivers are built into the kernel. Fix the issue by registering the DPI LCD panel only after the twl4030 GPIO has probed. Reported-by: Russell King <rmk+kernel@arm.linux.org.uk> Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com> [tony@atomide.com: updated per Tomi's comments] Signed-off-by: Tony Lindgren <tony@atomide.com>
2013-12-26ARM: shmobile: mackerel: Fix coherent DMA maskLaurent Pinchart
Commit 4dcfa60071b3d23f0181f27d8519f12e37cefbb9 ("ARM: DMA-API: better handing of DMA masks for coherent allocations") added an additional check to the coherent DMA mask that results in an error when the mask is larger than what dma_addr_t can address. Set the LCDC coherent DMA mask to DMA_BIT_MASK(32) instead of ~0 to fix the problem. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-26ARM: shmobile: kzm9g: Fix coherent DMA maskLaurent Pinchart
Commit 4dcfa60071b3d23f0181f27d8519f12e37cefbb9 ("ARM: DMA-API: better handing of DMA masks for coherent allocations") added an additional check to the coherent DMA mask that results in an error when the mask is larger than what dma_addr_t can address. Set the LCDC coherent DMA mask to DMA_BIT_MASK(32) instead of ~0 to fix the problem. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-26ARM: shmobile: armadillo: Fix coherent DMA maskLaurent Pinchart
Commit 4dcfa60071b3d23f0181f27d8519f12e37cefbb9 ("ARM: DMA-API: better handing of DMA masks for coherent allocations") added an additional check to the coherent DMA mask that results in an error when the mask is larger than what dma_addr_t can address. Set the LCDC coherent DMA mask to DMA_BIT_MASK(32) instead of ~0 to fix the problem. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
2013-12-25ARM: OMAP2+: hwmod_data: fix missing OMAP_INTC_START in irq dataSuman Anna
Commit 7d7e1eb (ARM: OMAP2+: Prepare for irqs.h removal) and commit ec2c082 (ARM: OMAP2+: Remove hardcoded IRQs and enable SPARSE_IRQ) updated the way interrupts for OMAP2/3 devices are defined in the HWMOD data structures to being an index plus a fixed offset (defined by OMAP_INTC_START). Couple of irqs in the OMAP2/3 hwmod data were misconfigured completely as they were missing this OMAP_INTC_START relative offset. Add this offset back to fix the incorrect irq data for the following modules: OMAP2 - GPMC, RNG OMAP3 - GPMC, ISP MMU & IVA MMU Signed-off-by: Suman Anna <s-anna@ti.com> Fixes: 7d7e1eba7e92 ("ARM: OMAP2+: Prepare for irqs.h removal") Fixes: ec2c0825ca31 ("ARM: OMAP2+: Remove hardcoded IRQs and enable SPARSE_IRQ") Cc: Tony Lindgren <tony@atomide.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-12-25ARM: DRA7: hwmod: Fix boot crash with DEBUG_LLRajendra Nayak
With commit '7dedd34: ARM: OMAP2+: hwmod: Fix a crash in _setup_reset() with DEBUG_LL' we moved from parsing cmdline to identify uart used for earlycon to using the requsite hwmod CONFIG_DEBUG_OMAPxUARTy FLAGS. On DRA7 though, we seem to be missing this flag, and atleast on the DRA7 EVM where we use uart1 for console, boot fails with DEBUG_LL enabled. Reported-by: Lokesh Vutla <lokeshvutla@ti.com> Tested-by: Lokesh Vutla <lokeshvutla@ti.com> # on a different base Signed-off-by: Rajendra Nayak <rnayak@ti.com> Fixes: 7dedd346941d ("ARM: OMAP2+: hwmod: Fix a crash in _setup_reset() with DEBUG_LL") Signed-off-by: Paul Walmsley <paul@pwsan.com>
2013-12-22Merge tag 'fixes-for-linus' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc Pull ARM SoC fixes from Olof Johansson: "Much smaller batch of fixes this week. Biggest one is a revert of an OMAP display change that removed some non-DT pinmux code that was still needed for 3.13 to get DSI displays to work. There's also a fix that resolves some misdescribed GPIO controller resources on shmobile. The rest are mostly smaller fixes, a couple of MAINTAINERS updates, etc" * tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: Revert "ARM: OMAP2+: Remove legacy mux code for display.c" MAINTAINERS: Add keystone clock drivers MAINTAINERS: Add keystone git tree information ARM: s3c64xx: dt: Fix boot failure due to double clock initialization ARM: shmobile: r8a7790: Fix GPIO resources in DTS irqchip: renesas-intc-irqpin: Fix register bitfield shift calculation ARM: shmobile: lager: phy fixup needs CONFIG_PHYLIB
2013-12-20b44: use fixed PHY device if we do not find anyHauke Mehrtens
The ADM6996L switch and some Broadcom switches with two MII interfaces like the BCM5325F connected to two MACs on the SoC, used on some routers do not return a valid value when reading the PHY id register and Linux thinks there is no PHY at all, but that is wrong. This patch registers a fixed phy in the arch code and then searches it when there is no other phy in the Ethernet driver code. Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de> Signed-off-by: David S. Miller <davem@davemloft.net>