Alexander Duyck 7641842164 swiotlb-xen: Enforce return of DMA_ERROR_CODE in mapping function ... The mapping function should always return DMA_ERROR_CODE when a mapping has failed as this is what the DMA API expects when a DMA error has occurred. The current function for mapping a page in Xen was returning either DMA_ERROR_CODE or 0 depending on where it failed. On x86 DMA_ERROR_CODE is 0, but on other architectures such as ARM it is ~0. We need to make sure we return the same error value if either the mapping failed or the device is not capable of accessing the mapping. If we are returning DMA_ERROR_CODE as our error value we can drop the function for checking the error code as the default is to compare the return value against DMA_ERROR_CODE if no function is defined. Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com> Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad@kernel.org>		2016-11-07 15:06:32 -05:00
..
boot	x86/efi: Use efi_exit_boot_services()	2016-09-05 12:40:16 +01:00
configs	kconfig: tinyconfig: provide whole choice blocks to avoid warnings	2016-09-01 17:52:01 -07:00
crypto	crypto: sha512-mb - fix ctx pointer	2016-08-16 17:09:43 +08:00
entry	x86/entry/64: Fix context tracking state warning when load_gs_index fails	2016-09-30 13:53:12 +02:00
events	perf/x86/intel/bts: Make it an exclusive PMU	2016-09-22 14:56:08 +02:00
ia32
include	x86/init: Fix cr4_init_shadow() on CR4-less machines	2016-09-29 19:08:30 +02:00
kernel	x86/boot: Initialize FPU and X86_FEATURE_ALWAYS even if we don't have CPUID	2016-09-30 13:53:04 +02:00
kvm	Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2016-09-18 11:50:48 -07:00
lguest
lib	x86/mm/kaslr: Fix -Wformat-security warning	2016-08-11 10:58:12 +02:00
math-emu
mm	x86/mm/pat: Prevent hang during boot when mapping pages	2016-09-20 14:53:00 +01:00
net
oprofile
pci	PCI: Mark Haswell Power Control Unit as having non-compliant BARs	2016-09-01 08:52:29 -05:00
platform	x86/efi: Only map RAM into EFI page tables if in mixed-mode	2016-09-20 14:53:04 +01:00
power	x86/power/64: Use __pa() for physical address computation	2016-08-16 00:39:37 +02:00
purgatory
ras
realmode	x86/boot: Rework reserve_real_mode() to allow multiple tries	2016-08-11 11:15:01 +02:00
tools
um	um/ptrace: Fix the syscall number update after a ptrace	2016-09-07 09:25:04 -07:00
video
xen	swiotlb-xen: Enforce return of DMA_ERROR_CODE in mapping function	2016-11-07 15:06:32 -05:00
.gitignore
Kbuild
Kconfig	mm/usercopy: get rid of CONFIG_DEBUG_STRICT_USER_COPY_CHECKS	2016-08-30 10:10:21 -07:00
Kconfig.cpu
Kconfig.debug
Makefile	kbuild: abort build on bad stack protector flag	2016-07-26 16:19:19 -07:00
Makefile_32.cpu
Makefile.um