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#
# Packet configuration
#

config PACKET
	tristate "Packet socket"
	---help---
	  The Packet protocol is used by applications which communicate
	  directly with network devices without an intermediate network
	  protocol implemented in the kernel, e.g. tcpdump.  If you want them
	  to work, choose Y.

	  To compile this driver as a module, choose M here: the module will
	  be called af_packet.

	  If unsure, say Y.

config PACKET_DIAG
	tristate "Packet: sockets monitoring interface"
	depends on PACKET
	default n
	---help---
	  Support for PF_PACKET sockets monitoring interface used by the ss tool.
	  If unsure, say Y.
lx@linutronix.de>2017-01-23 09:39:55 +0100 commitc26665ab5c49ad3e142e0f054ca3204f259ba09c (patch) tree3bab11918e18e9d25ef7544dba05cdf39d1abec5 /tools/perf/util/data-convert-bt.c parent7a308bb3016f57e5be11a677d15b821536419d36 (diff)
x86/microcode/intel: Drop stashed AP patch pointer optimization
This was meant to save us the scanning of the microcode containter in the initrd since the first AP had already done that but it can also hurt us: Imagine a single hyperthreaded CPU (Intel(R) Atom(TM) CPU N270, for example) which updates the microcode on the BSP but since the microcode engine is shared between the two threads, the update on CPU1 doesn't happen because it has already happened on CPU0 and we don't find a newer microcode revision on CPU1. Which doesn't set the intel_ucode_patch pointer and at initrd jettisoning time we don't save the microcode patch for later application. Now, when we suspend to RAM, the loaded microcode gets cleared so we need to reload but there's no patch saved in the cache. Removing the optimization fixes this issue and all is fine and dandy. Fixes: 06b8534cb728 ("x86/microcode: Rework microcode loading") Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20170120202955.4091-2-bp@alien8.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'tools/perf/util/data-convert-bt.c')