linux/drivers/firmware, branch v4.15

efi/capsule-loader: Reinstate virtual capsule mapping

2018-01-03T12:54:31Z

Commit: 82c3768b8d68 ("efi/capsule-loader: Use a cached copy of the capsule header") ... refactored the capsule loading code that maps the capsule header, to avoid having to map it several times. However, as it turns out, the vmap() call we ended up removing did not just map the header, but the entire capsule image, and dropping this virtual mapping breaks capsules that are processed by the firmware immediately (i.e., without a reboot). Unfortunately, that change was part of a larger refactor that allowed a quirk to be implemented for Quark, which has a non-standard memory layout for capsules, and we have slightly painted ourselves into a corner by allowing quirk code to mangle the capsule header and memory layout. So we need to fix this without breaking Quark. Fortunately, Quark does not appear to care about the virtual mapping, and so we can simply do a partial revert of commit: 2a457fb31df6 ("efi/capsule-loader: Use page addresses rather than struct page pointers") ... and create a vmap() mapping of the entire capsule (including header) based on the reinstated struct page array, unless running on Quark, in which case we pass the capsule header copy as before. Reported-by: Ge Song Tested-by: Bryan O'Donoghue Tested-by: Ge Song Signed-off-by: Ard Biesheuvel Cc: Cc: Dave Young Cc: Linus Torvalds Cc: Matt Fleming Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-efi@vger.kernel.org Fixes: 82c3768b8d68 ("efi/capsule-loader: Use a cached copy of the capsule header") Link: http://lkml.kernel.org/r/20180102172110.17018-3-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar

Merge tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc

2017-12-10T16:26:59Z

Pull ARM SoC fixes from Olof Johansson: - A revert of all SCPI changes from the 4.15 merge window. They had regressions on the Amlogic platforms, and the submaintainer isn't around to fix these bugs due to vacation, etc. So we agreed to revert and revisit in next release cycle. - A series fixing a number of bugs for ARM CCN interconnect, around module unload, smp_processor_id() in preemptable context, and fixing some memory allocation failure checks. - A handful of devicetree fixes for different platforms, fixing warnings and errors that were previously ignored by the compiler. - The usual set of mostly minor fixes for different platforms. * tag 'armsoc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (42 commits) ARM64: dts: meson-gx: fix UART pclk clock name ARM: omap2: hide omap3_save_secure_ram on non-OMAP3 builds arm: dts: nspire: Add missing #phy-cells to usb-nop-xceiv ARM: dts: Fix dm814x missing phy-cells property ARM: dts: Fix elm interrupt compiler warning bus: arm-ccn: fix module unloading Error: Removing state 147 which has instances left. bus: arm-cci: Fix use of smp_processor_id() in preemptible context bus: arm-ccn: Fix use of smp_processor_id() in preemptible context bus: arm-ccn: Simplify code bus: arm-ccn: Check memory allocation failure bus: arm-ccn: constify attribute_group structures. firmware: arm_scpi: Revert updates made during v4.15 merge window arm: dts: marvell: Add missing #phy-cells to usb-nop-xceiv arm64: dts: sort vendor subdirectories in Makefile alphabetically meson-gx-socinfo: Fix package id parsing ARM: meson: fix spelling mistake: "Couln't" -> "Couldn't" ARM: dts: meson: fix the memory region of the GPIO interrupt controller ARM: dts: meson: correct the sort order for the the gpio_intc node MAINTAINERS: exclude other Socionext SoC DT files from ARM/UNIPHIER entry arm64: dts: uniphier: remove unnecessary interrupt-parent ...

efi: Add comment to avoid future expanding of sysfs systab

2017-12-06T18:32:23Z

/sys/firmware/efi/systab shows several different values, it breaks sysfs one file one value design. But since there are already userspace tools depend on it eg. kexec-tools so add code comment to alert future expanding of this file. Signed-off-by: Dave Young Signed-off-by: Ard Biesheuvel Reviewed-by: Greg Kroah-Hartman Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Matt Fleming Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20171206095010.24170-4-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar

efi/esrt: Use memunmap() instead of kfree() to free the remapping

2017-12-06T18:32:08Z

The remapping result of memremap() should be freed with memunmap(), not kfree(). Signed-off-by: Pan Bian Signed-off-by: Ard Biesheuvel Cc: Cc: H. Peter Anvin Cc: Linus Torvalds Cc: Matt Fleming Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-efi@vger.kernel.org Link: http://lkml.kernel.org/r/20171206095010.24170-3-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar

efi: Move some sysfs files to be read-only by root

2017-12-06T18:31:39Z

Thanks to the scripts/leaking_addresses.pl script, it was found that some EFI values should not be readable by non-root users. So make them root-only, and to do that, add a __ATTR_RO_MODE() macro to make this easier, and use it in other places at the same time. Reported-by: Linus Torvalds Tested-by: Dave Young Signed-off-by: Greg Kroah-Hartman Signed-off-by: Ard Biesheuvel Cc: H. Peter Anvin Cc: Matt Fleming Cc: Peter Zijlstra Cc: Thomas Gleixner Cc: linux-efi@vger.kernel.org Cc: stable Link: http://lkml.kernel.org/r/20171206095010.24170-2-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar

Merge tag 'char-misc-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2017-12-05T18:06:23Z

Pull char/misc fixes from Greg KH: "Here are some small misc driver fixes for 4.15-rc3 to resolve reported issues. Specifically these are: - binder fix for a memory leak - vpd driver fixes for a number of reported problems - hyperv driver fix for memory accesses where it shouldn't be. All of these have been in linux-next for a while. There's also one more MAINTAINERS file update that came in today to get the Android developer's emails correct, which is also in this pull request, that was not in linux-next, but should not be an issue" * tag 'char-misc-4.15-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: MAINTAINERS: update Android driver maintainers. firmware: vpd: Fix platform driver and device registration/unregistration firmware: vpd: Tie firmware kobject to device lifetime firmware: vpd: Destroy vpd sections in remove function hv: kvp: Avoid reading past allocated blocks from KVP file Drivers: hv: vmbus: Fix a rescind issue ANDROID: binder: fix transaction leak.

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

2017-12-04T19:32:02Z

Pull virtio fixes from Michael Tsirkin: "virtio and qemu bugfixes A couple of bugfixes that just became ready" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: virtio_balloon: fix increment of vb->num_pfns in fill_balloon() virtio: release virtio index when fail to device_register fw_cfg: fix driver remove

firmware: arm_scpi: Revert updates made during v4.15 merge window

2017-12-04T03:39:22Z

Revert "Merge tag 'scpi-updates-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into next/drivers" Paraphrased from email from Kevin Hilman: Revert ARM SCPI changes since v4.14. Untested changes caused regressions in SCPI and CPUfreq/DVFS failures on most Amlogic SoCs. Changes reverted for v4.15 so they can be better reviewed and tested. These ARM SCPI changes caused SCPI regressions resulting in CPUfreq failures on most Amlogic SoCs (found by kernelci.org.) Unfortunately, this was not caught in linux-next due to other bugs/panics on these platforms masking this problem so we've only found it since we've fixed the other issues. Since we're already in the -rc cycle, I'd prefer to revert to a known working state (that of v4.14) rather than finding/reverting a subset, which would just lead to another untested state. These changes can then have some time to be better reviewed and tested and resubmitted for v4.16. Kevin Hilman has tested this revert on the affected Amlogic SoCs and verified that we're back to the previous (working) condition. This reverts commit 6710acf2596a29f7351e8165d981645f403e0025, reversing changes made to 4b367f2e8854da34d14bd154ff4432fb49f69b36. Reported-by: Kevin Hilman Signed-off-by: Olof Johansson

fw_cfg: fix driver remove

2017-12-01T14:55:09Z

On driver remove(), all objects created during probe() should be removed, but sysfs qemu_fw_cfg/rev file was left. Also reorder functions to match probe() error cleanup code. Cc: stable@vger.kernel.org Signed-off-by: Marc-André Lureau Signed-off-by: Michael S. Tsirkin

firmware: vpd: Fix platform driver and device registration/unregistration

2017-11-28T15:57:18Z

The driver exit function needs to unregister both platform device and driver. Also, during registration, register driver first and perform error checks. Fixes: 049a59db34eb ("firmware: Google VPD sysfs driver") Signed-off-by: Guenter Roeck Cc: stable Tested-by: Randy Dunlap Reviewed-by: Dmitry Torokhov Signed-off-by: Greg Kroah-Hartman