kernel/linux.git/arch, branch v3.2.95

ARM: 8160/1: drop warning about return_address not using unwind tables

2017-11-11T13:34:51+00:00

commit e16343c47e4276f5ebc77ca16feb5e50ca1918f9 upstream. The warning was introduced in 2009 (commit 4bf1fa5a34aa ([ARM] 5613/1: implement CALLER_ADDRESSx)). The only "problem" here is that CALLER_ADDRESSx for x > 1 returns NULL which doesn't do much harm. The drawback of implementing a fix (i.e. use unwind tables to implement CALLER_ADDRESSx) is that much of the unwinder code would need to be marked as not traceable. Signed-off-by: Uwe Kleine-König Signed-off-by: Russell King [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings

alpha: uapi: Add support for __SANE_USERSPACE_TYPES__

2017-11-11T13:34:35+00:00

commit cec80d82142ab25c71eee24b529cfeaf17c43062 upstream. This fixes compiler errors in perf such as: tests/attr.c: In function 'store_event': tests/attr.c:66:27: error: format '%llu' expects argument of type 'long long unsigned int', but argument 6 has type '__u64 {aka long unsigned int}' [-Werror=format=] snprintf(path, PATH_MAX, "%s/event-%d-%llu-%d", dir, ^ Signed-off-by: Ben Hutchings Tested-by: Michael Cree Signed-off-by: Matt Turner

xtensa: mm/cache: add missing EXPORT_SYMBOLs

2017-11-11T13:34:28+00:00

commit bc652eb6a0d5cffaea7dc8e8ad488aab2a1bf1ed upstream. Functions clear_user_highpage, copy_user_highpage, flush_dcache_page, local_flush_cache_range and local_flush_cache_page may be used from modules. Export them. Signed-off-by: Max Filippov [bwh: Backported to 3.2: drop exports of {clear,copy}_user_highpage()] Signed-off-by: Ben Hutchings

xtensa: don't limit csum_partial export by CONFIG_NET

2017-11-11T13:34:27+00:00

commit 7f81e55c737a8fa82c71f290945d729a4902f8d2 upstream. csum_partial and csum_partial_copy_generic are defined unconditionally and are available even when CONFIG_NET is disabled. They are used not only by the network drivers, but also by scsi and media. Don't limit these functions export by CONFIG_NET. Signed-off-by: Max Filippov Signed-off-by: Ben Hutchings

xtensa: add missing symbol exports

2017-11-11T13:34:27+00:00

commit d3738f407c8ced4fd17dccf6cce729023c735c73 upstream. Signed-off-by: Max Filippov Signed-off-by: Chris Zankel [bwh: Backported to 3.2: drop exports of some functions that aren't defined here] Signed-off-by: Ben Hutchings

xtensa: fix cache aliasing handling code for WT cache

2017-11-11T13:34:27+00:00

commit 6d0f581d1768d3eaba15776e7dd1fdfec10cfe36 upstream. Currently building kernel for xtensa core with aliasing WT cache fails with the following messages: mm/memory.c:2152: undefined reference to `flush_dcache_page' mm/memory.c:2332: undefined reference to `local_flush_cache_page' mm/memory.c:1919: undefined reference to `local_flush_cache_range' mm/memory.c:4179: undefined reference to `copy_to_user_page' mm/memory.c:4183: undefined reference to `copy_from_user_page' This happens because implementation of these functions is only compiled when data cache is WB, which looks wrong: even when data cache doesn't need flushing it still needs invalidation. The functions like __flush_[invalidate_]dcache_* are correctly defined for both WB and WT caches (and even if they weren't that'd still be ok, just slower). Fix this by providing the same implementation of the above functions for both WB and WT cache. Signed-off-by: Max Filippov [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings

ARM: pxa: select both FB and FB_W100 for eseries

2017-11-11T13:34:27+00:00

commit 1d20d8a9fce8f1e2ef00a0f3d068fa18d59ddf8f upstream. We get a link error trying to access the w100fb_gpio_read/write functions from the platform when the driver is a loadable module or not built-in, so the platform already uses 'select' to hard-enable the driver. However, that fails if the framebuffer subsystem is disabled altogether. I've considered various ways to fix this properly, but they all seem like too much work or too risky, so this simply adds another 'select' to force the subsystem on as well. Fixes: 82427de2c7c3 ("ARM: pxa: PXA_ESERIES depends on FB_W100.") Signed-off-by: Arnd Bergmann [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings

x86/acpi: Prevent out of bound access caused by broken ACPI tables

2017-11-11T13:34:24+00:00

commit dad5ab0db8deac535d03e3fe3d8f2892173fa6a4 upstream. The bus_irq argument of mp_override_legacy_irq() is used as the index into the isa_irq_to_gsi[] array. The bus_irq argument originates from ACPI_MADT_TYPE_IO_APIC and ACPI_MADT_TYPE_INTERRUPT items in the ACPI tables, but is nowhere sanity checked. That allows broken or malicious ACPI tables to overwrite memory, which might cause malfunction, panic or arbitrary code execution. Add a sanity check and emit a warning when that triggers. [ tglx: Added warning and rewrote changelog ] Signed-off-by: Seunghun Han Signed-off-by: Thomas Gleixner Cc: security@kernel.org Cc: "Rafael J. Wysocki" Signed-off-by: Ingo Molnar Signed-off-by: Ben Hutchings

m32r: add io*_rep helpers

2017-10-12T14:27:21+00:00

commit 92a8ed4c7643809123ef0a65424569eaacc5c6b0 upstream. m32r allmodconfig was failing with the error: error: implicit declaration of function 'read' On checking io.h it turned out that 'read' is not defined but 'readb' is defined and 'ioread8' will then obviously mean 'readb'. At the same time some of the helper functions ioreadN_rep() and iowriteN_rep() were missing which also led to the build failure. Signed-off-by: Sudip Mukherjee Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds Signed-off-by: Ben Hutchings

m32r: add definition of ioremap_wc to io.h

2017-10-12T14:27:21+00:00

commit 71a49d16f06de2ccdf52ca247d496a2bb1ca36fe upstream. Before adding a resource managed ioremap_wc function, we need to have ioremap_wc defined for m32r to prevent build errors. Signed-off-by: Abhilash Kesavan Acked-by: Catalin Marinas Signed-off-by: Greg Kroah-Hartman Cc: Sudip Mukherjee Signed-off-by: Ben Hutchings