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linux-hardened/arch/arm/mm
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Alexandre Courbot 23be7fdafa ARM: 8305/1: DMA: Fix kzalloc flags in __iommu_alloc_buffer() 
There doesn't seem to be any valid reason to allocate the pages array
with the same flags as the buffer itself. Doing so can eventually lead
to the following safeguard in mm/slab.c's cache_grow() to be hit:

        if (unlikely(flags & GFP_SLAB_BUG_MASK)) {
                pr_emerg("gfp: %un", flags & GFP_SLAB_BUG_MASK);
                BUG();
        }

This happens when buffers are allocated with __GFP_DMA32 or
__GFP_HIGHMEM.

Fix this by allocating the pages array with GFP_KERNEL to follow what is
done elsewhere in this file. Using GFP_KERNEL in __iommu_alloc_buffer()
is safe because atomic allocations are handled by __iommu_alloc_atomic().

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
2015-02-20 11:14:42 +00:00
..
abort-ev4.S
abort-ev4t.S
abort-ev5t.S
abort-ev5tj.S
abort-ev6.S ARM: 8128/1: abort: don't clear the exclusive monitors 2014-08-27 15:40:12 +01:00
abort-ev7.S ARM: 8128/1: abort: don't clear the exclusive monitors 2014-08-27 15:40:12 +01:00
abort-lv4t.S
abort-macro.S
abort-nommu.S
alignment.c ARM: convert printk(KERN_* to pr_* 2014-11-21 15:24:50 +00:00
cache-aurora-l2.h
cache-fa.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
cache-feroceon-l2.c ARM: convert printk(KERN_* to pr_* 2014-11-21 15:24:50 +00:00
cache-l2x0.c ARM: 8183/1: l2c: Improve l2c310_of_parse() error message 2014-10-29 17:20:55 +00:00
cache-nop.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
cache-tauros2.c ARM: convert printk(KERN_* to pr_* 2014-11-21 15:24:50 +00:00
cache-tauros3.h ARM: 7922/1: l2x0: add Marvell Tauros3 support 2013-12-29 12:32:47 +00:00
cache-v4.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
cache-v4wb.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
cache-v4wt.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
cache-v6.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
cache-v7.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
cache-xsc3l2.c
context.c ARM: 8299/1: mm: ensure local active ASID is marked as allocated on rollover 2015-02-03 12:57:33 +00:00
copypage-fa.c
copypage-feroceon.c
copypage-v4mc.c
copypage-v4wb.c
copypage-v4wt.c
copypage-v6.c ARM: 8236/1: mm: fix discard_old_kernel_data 2014-12-03 16:00:04 +00:00
copypage-xsc3.c
copypage-xscale.c
dma-mapping.c ARM: 8305/1: DMA: Fix kzalloc flags in __iommu_alloc_buffer() 2015-02-20 11:14:42 +00:00
dump.c ARM: 8249/1: mm: dump: don't skip regions 2015-01-07 20:33:33 +00:00
extable.c ARM: 7876/1: clear Thumb-2 IT state on exception handling 2013-11-07 00:15:49 +00:00
fault-armv.c ARM: convert printk(KERN_* to pr_* 2014-11-21 15:24:50 +00:00
fault.c ARM: convert printk(KERN_* to pr_* 2014-11-21 15:24:50 +00:00
fault.h
flush.c ARM: 8237/1: fix flush_pfn_alias 2014-12-03 16:00:04 +00:00
fsr-2level.c
fsr-3level.c ARM: mm: Transparent huge page support for LPAE systems. 2013-06-04 16:52:38 +01:00
highmem.c Merge branch 'devel-stable' into for-next 2014-12-05 16:30:54 +00:00
hugetlbpage.c hugetlb: restrict hugepage_migration_support() to x86_64 2014-06-04 16:53:51 -07:00
idmap.c ARM: 8152/1: Convert pr_warning to pr_warn 2014-09-26 14:39:53 +01:00
init.c ARM: 8275/1: mm: fix PMD_SECT_RDONLY undeclared compile error 2015-01-09 20:44:12 +00:00
iomap.c
ioremap.c ARM: 8060/1: mm: allow sub-architectures to override PCI I/O memory type 2014-06-01 01:15:04 +01:00
Kconfig ARM: 8298/1: ARM_KERNMEM_PERMS only works with MMU enabled 2015-01-29 15:23:31 +00:00
l2c-common.c ARM: outer cache: add WARN_ON() to outer_disable() 2014-05-30 00:47:23 +01:00
l2c-l2x0-resume.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
Makefile ARM: 8238/1: mm: Refine set_memory_* functions 2014-12-03 16:00:05 +00:00
mm.h ARM: provide common method to clear bits in CPU control register 2014-06-02 09:20:11 +01:00
mmap.c ARM: fix booting low-vectors machines 2013-11-30 14:45:31 +00:00
mmu.c ARM: 8253/1: mm: use phys_addr_t type in map_lowmem() for kernel mem region 2015-01-07 20:33:34 +00:00
nommu.c ARM: 8086/1: Set memblock limit for nommu 2014-06-29 10:29:34 +01:00
pabort-legacy.S
pabort-v6.S
pabort-v7.S
pageattr.c ARM: 8238/1: mm: Refine set_memory_* functions 2014-12-03 16:00:05 +00:00
pgd.c ARM: pgd allocation: retry on failure 2013-12-29 12:36:20 +00:00
proc-arm7tdmi.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm9tdmi.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm720.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm740.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm920.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm922.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm925.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm926.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm940.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm946.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm1020.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm1020e.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm1022.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-arm1026.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-fa526.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-feroceon.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-macros.S ARM: mm: Fix ifdef around cpu_*_do_[suspend, resume] ops 2014-09-24 02:47:44 +09:00
proc-mohawk.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-sa110.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-sa1100.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-syms.c ARM: modules: don't export cpu_set_pte_ext when !MMU 2013-03-26 09:55:34 +00:00
proc-v6.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-v7-2level.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-v7-3level.S ARM: 8164/1: mm: clear SCTLR.HA instead of setting it for LPAE 2014-09-25 15:32:57 +01:00
proc-v7.S Merge branches 'fixes', 'misc', 'pm' and 'sa1100' into for-next 2014-12-05 16:30:47 +00:00
proc-v7m.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-xsc3.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
proc-xscale.S ARM: 8216/1: xscale: correct auxiliary register in suspend/resume 2014-11-21 15:25:17 +00:00
tcm.h ARM: 7694/1: ARM, TCM: initialize TCM in paging_init(), instead of setup_arch() 2013-04-17 16:53:24 +01:00
tlb-fa.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
tlb-v4.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
tlb-v4wb.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
tlb-v4wbi.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
tlb-v6.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00
tlb-v7.S ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+ 2014-07-18 12:29:04 +01:00