Linux Kernel https://git.stealer.net/cgit.cgi/user/sven/linux.git/atom?h=v4.0 2015-04-10T17:51:34Z 2015-04-10T17:51:34Z Linus Torvalds torvalds@linux-foundation.org 2015-04-10T17:51:34Z urn:sha1:6fb805fb104de653ad28384192c1e469505b6bdd Pull arch/nios2 fixes from Ley Foon Tan: "There are 3 arch/nios2 fixes for 4.0 final: - fix cache coherency issue when debugging with gdb - move restart_block to struct task_struct (aligned with other architectures) - fix for missing registers defines for ptrace" * tag 'nios2-fixes-v4.0-final' of git://git.rocketboards.org/linux-socfpga-next: nios2: fix cache coherency issue when debug with gdb nios2: add missing ptrace registers defines nios2: signal: Move restart_block to struct task_struct 2015-04-10T03:10:08Z Ley Foon Tan lftan@altera.com 2015-04-10T03:10:08Z urn:sha1:4a89c3088ff61aa24754e9cd6dc665cc719f7efe Remove the end address checking for flushda function. We need to flush each address line for flushda instruction, from start to end address. This is because flushda instruction only flush the cache if tag and line fields are matched. Change to use ldwio instruction (bypass cache) to load the instruction that causing trap. Our interest is the actual instruction that executed by the processor, this should be uncached. Note, EA address might be an userspace cached address. Signed-off-by: Ley Foon Tan <lftan@altera.com> 2015-04-09T17:17:44Z Linus Torvalds torvalds@linux-foundation.org 2015-04-09T17:17:44Z urn:sha1:3cfb2f7976a2f9cfe48eda4e6d7e4ce74fee09e3 Pull PCI fixes from Bjorn Helgaas: "Here are some fixes for v4.0. I apologize for how late they are. We were hoping for some better fixes, but couldn't get them polished in time. These fix: - a Xen domU oops with PCI passthrough devices - a sparc T5 boot failure - a STM SPEAr13xx crash (use after initdata freed) - a cpcihp hotplug driver thinko - an AER thinko that printed stack junk Details: Enumeration - Don't look for ACPI hotplug parameters if ACPI is disabled (Bjorn Helgaas) Resource management - Revert "sparc/PCI: Clip bridge windows to fit in upstream windows" (Bjorn Helgaas) AER - Avoid info leak in __print_tlp_header() (Rasmus Villemoes) PCI device hotplug - Add missing curly braces in cpci_configure_slot() (Dan Carpenter) ST Microelectronics SPEAr13xx host bridge driver - Drop __initdata from spear13xx_pcie_driver (Matwey V. Kornilov) * tag 'pci-v4.0-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: Revert "sparc/PCI: Clip bridge windows to fit in upstream windows" PCI: Don't look for ACPI hotplug parameters if ACPI is disabled PCI: cpcihp: Add missing curly braces in cpci_configure_slot() PCI/AER: Avoid info leak in __print_tlp_header() PCI: spear: Drop __initdata from spear13xx_pcie_driver 2015-04-09T10:28:05Z Ley Foon Tan lftan@altera.com 2015-04-09T10:28:05Z urn:sha1:e3e29f990cc77c5b23280c77275812a3f010cc41 These are all register available in nios2. Signed-off-by: Ley Foon Tan <lftan@altera.com> 2015-04-08T21:28:45Z Linus Torvalds torvalds@linux-foundation.org 2015-04-06T17:26:17Z urn:sha1:cae2a173fe94ab3a437416af6f092fae2e65837e The rule for 'copy_from_user()' is that it zeroes the remaining kernel buffer even when the copy fails halfway, just to make sure that we don't leave uninitialized kernel memory around. Because even if we check for errors, some kernel buffers stay around after thge copy (think page cache). However, the x86-64 logic for user copies uses a copy_user_generic() function for all the cases, that set the "zerorest" flag for any fault on the source buffer. Which meant that it didn't just try to clear the kernel buffer after a failure in copy_from_user(), it also tried to clear the destination user buffer for the "copy_in_user()" case. Not only is that pointless, it also means that the clearing code has to worry about the tail clearing taking page faults for the user buffer case. Which is just stupid, since that case shouldn't happen in the first place. Get rid of the whole "zerorest" thing entirely, and instead just check if the destination is in kernel space or not. And then just use memset() to clear the tail of the kernel buffer if necessary. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 2015-04-08T15:04:55Z Bjorn Helgaas bhelgaas@google.com 2015-04-08T15:04:55Z urn:sha1:d10b730f97a7f1fa58c9ec300828f87157cd6b95 This reverts commit d63e2e1f3df904bf6bd150bdafb42ddbb3257ea8. David Ahern reported that d63e2e1f3df9 breaks booting on an 8-socket T5 sparc system. He also verified that the system boots with d63e2e1f3df9 reverted. Yinghai has some fixes, but they need a little more polishing than we can do before v4.0. Link: http://lkml.kernel.org/r/5514391F.2030300@oracle.com # report Link: http://lkml.kernel.org/r/1427857069-6789-1-git-send-email-yinghai@kernel.org # patches Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> CC: stable@vger.kernel.org # v3.19+ 2015-04-08T05:45:16Z Ley Foon Tan lftan@altera.com 2015-04-08T05:44:18Z urn:sha1:7587d12647f1d952a4fbe5fb54a52e98b5509dcc See https://lkml.org/lkml/2014/10/29/643 and commit f56141e3e2d9 ("all arches, signal: move restart_block to struct task_struct") Signed-off-by: Ley Foon Tan <lftan@altera.com> 2015-04-03T17:42:32Z Linus Torvalds torvalds@linux-foundation.org 2015-04-03T17:42:32Z urn:sha1:567cfea99af61ef19da42f8491da98cf94a4d166 Pull x86 fixes from Ingo Molnar: "Misc fixes: a SYSRET single-stepping fix, a dmi-scan robustization fix, a reboot quirk and a kgdb fixlet" * 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: kgdb/x86: Fix reporting of 'si' in kgdb on x86_64 x86/asm/entry/64: Disable opportunistic SYSRET if regs->flags has TF set x86/reboot: Add ASRock Q1900DC-ITX mainboard reboot quirk MAINTAINERS: Change the x86 microcode loader maintainer firmware: dmi_scan: Prevent dmi_num integer overflow 2015-04-03T17:38:36Z Linus Torvalds torvalds@linux-foundation.org 2015-04-03T17:38:36Z urn:sha1:ec2e76b4c73362231e7d6903e14fc9817d99f3ae Pull perf fixes from Ingo Molnar: "Two x86 Intel PMU constraint handling fixes" * 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: perf/x86/intel: Fix Haswell CYCLE_ACTIVITY.* counter constraints perf/x86/intel: Filter branches for PEBS event 2015-04-02T20:53:53Z Linus Torvalds torvalds@linux-foundation.org 2015-04-02T20:53:53Z urn:sha1:b0838b150160f90be0903a38a2ce11d764962752 Pull xen regression fixes from David Vrabel: "Fix two regressions in the balloon driver's use of memory hotplug when used in a PV guest" * tag 'stable/for-linus-4.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xen/balloon: before adding hotplugged memory, set frames to invalid x86/xen: prepare p2m list for memory hotplug