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authorChris Mason <clm@fb.com>2017-01-11 06:26:12 -0800
committerChris Mason <clm@fb.com>2017-01-11 06:26:12 -0800
commit0bf70aebf12d8fa0d06967b72ca4b257eb6adf06 (patch)
tree13f6063275339627603ed85ae25d5898bf5981a7 /net/mpls/mpls_iptunnel.c
parent3dda13a8ad787f3d4c4f18c8c05f8eebc7ea135a (diff)
parent562a7a07bf61e2949f7cbdb6ac7537ad9e2794d1 (diff)
Merge branch 'tracepoint-updates-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux into for-linus-4.10
Diffstat (limited to 'net/mpls/mpls_iptunnel.c')
0 files changed, 0 insertions, 0 deletions
en that the stub's libfdt implementation uses the ordinary, accelerated string functions, which rely on hardware handling of unaligned accesses, manipulating the FDT with the MMU off may result in alignment faults. So fix the situation by moving the update_fdt_memmap() call into the callback function invoked by efi_exit_boot_services() right before it calls the ExitBootServices() UEFI service (which is arguably a better place for it anyway) Note that disabling the MMU in ExitBootServices() is not compliant with the UEFI spec, and carries great risk due to the fact that switching from cached to uncached memory accesses halfway through compiler generated code (i.e., involving a stack) can never be done in a way that is architecturally safe. Fixes: abfb7b686a3e ("efi/libstub/arm*: Pass latest memory map to the kernel") Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Tested-by: Riku Voipio <riku.voipio@linaro.org> Cc: <stable@vger.kernel.org> Cc: mark.rutland@arm.com Cc: linux-efi@vger.kernel.org Cc: matt@codeblueprint.co.uk Cc: leif.lindholm@linaro.org Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1485971102-23330-2-git-send-email-ard.biesheuvel@linaro.org Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/usb/misc/usbtest.c')