flowtop: set bug if screen is NULL - netsniff-ng.git - A high-performance Linux networking toolkit

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author	Daniel Borkmann <dborkman@redhat.com>	2013-06-12 12:49:45 +0200
committer	Daniel Borkmann <dborkman@redhat.com>	2013-06-12 12:49:45 +0200
commit	9c645ee7da2a82529ff3ed01d04e0893904d7702 (patch)
tree	dd1848a075fcdedcd6b7b2294881e8b16c218391 /ifpps/.gitignore
parent	c0d19330c7df0a441545942e7ac87721c718edf4 (diff)

flowtop: set bug if screen is NULL

If this is ever the case, bail out. Signed-off-by: Daniel Borkmann <dborkman@redhat.com>

Diffstat (limited to 'ifpps/.gitignore')

0 files changed, 0 insertions, 0 deletions

ipulation to after the invocation of ExitBootServices(). Given 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 'include/net/cls_cgroup.h')


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