Daniel Borkmann a2284d912b bpf, arm64: fix stack_depth tracking in combination with tail calls ... Using dynamic stack_depth tracking in arm64 JIT is currently broken in combination with tail calls. In prologue, we cache ctx->stack_size and adjust SP reg for setting up function call stack, and tearing it down again in epilogue. Problem is that when doing a tail call, the cached ctx->stack_size might not be the same. One way to fix the problem with minimal overhead is to re-adjust SP in emit_bpf_tail_call() and properly adjust it to the current program's ctx->stack_size. Tested on Cavium ThunderX ARMv8. Fixes: f1c9eed7f4 ("bpf, arm64: take advantage of stack_depth tracking") Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2018-01-16 11:29:15 -08:00
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boot	arm64: dts: uniphier: fix gpio-ranges property of PXs3 SoC	2018-01-04 17:09:01 +01:00
configs	arm64: defconfig: enable CONFIG_GPIO_UNIPHIER	2017-10-30 14:41:54 +01:00
crypto	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
include	arm64/sve: Report SVE to userspace via CPUID only if supported	2017-12-14 15:14:30 +00:00
kernel	arm64: fpsimd: Fix copying of FP state from signal frame into task struct	2017-12-15 16:12:35 +00:00
kvm	ARM fixes:	2017-12-21 10:44:13 -08:00
lib	arm64 updates for 4.15	2017-11-15 10:56:56 -08:00
mm	arm64: fix CONFIG_DEBUG_WX address reporting	2017-12-14 10:18:23 +00:00
net	bpf, arm64: fix stack_depth tracking in combination with tail calls	2018-01-16 11:29:15 -08:00
xen	xen/privcmd: Add IOCTL_PRIVCMD_DM_OP	2017-02-14 15:13:43 -05:00
Kconfig	arm64: Add software workaround for Falkor erratum 1041	2017-12-12 11:45:19 +00:00
Kconfig.debug	arm64: relocation testing module	2017-04-04 17:03:32 +01:00
Kconfig.platforms	ARM: SoC driver updates for v4.15	2017-11-16 16:05:01 -08:00
Makefile	arm64: ftrace: emit ftrace-mod.o contents through code	2017-12-01 13:04:59 +00:00