Daniel Borkmann 232ac70dd3 bpf: enable access to ax register also from verifier rewrite ... [ commit 9b73bfdd08 upstream ] Right now we are using BPF ax register in JIT for constant blinding as well as in interpreter as temporary variable. Verifier will not be able to use it simply because its use will get overridden from the former in bpf_jit_blind_insn(). However, it can be made to work in that blinding will be skipped if there is prior use in either source or destination register on the instruction. Taking constraints of ax into account, the verifier is then open to use it in rewrites under some constraints. Note, ax register already has mappings in every eBPF JIT. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-01-31 08:14:40 +01:00
..
acpi
asm-generic	mm: introduce mm_[p4d|pud|pmd]_folded	2018-12-29 13:37:58 +01:00
clocksource
crypto	crypto: speck - remove Speck	2018-11-13 11:08:46 -08:00
drm	drm: Get ref on CRTC commit object when waiting for flip_done	2018-10-18 14:23:13 -04:00
dt-bindings	ARM: SoC: late updates	2018-08-25 14:12:36 -07:00
keys
kvm
linux	bpf: enable access to ax register also from verifier rewrite	2019-01-31 08:14:40 +01:00
math-emu
media	media: cec: keep track of outstanding transmits	2019-01-09 17:38:46 +01:00
memory
misc
net	net: ipv4: Fix memory leak in network namespace dismantle	2019-01-31 08:14:32 +01:00
pcmcia	pcmcia: remove long deprecated pcmcia_request_exclusive_irq() function	2018-08-18 12:30:42 -07:00
ras
rdma	IB/rxe: Revise the ib_wr_opcode enum	2018-11-13 11:08:43 -08:00
scsi
soc	soc: fsl: qbman: add APIs to retrieve the probing status	2018-09-27 15:43:35 -05:00
sound	ALSA: pcm: Fix interval evaluation with openmin/max	2018-12-13 09:16:16 +01:00
target	scsi: target/core: Make sure that target_wait_for_sess_cmds() waits long enough	2019-01-26 09:32:38 +01:00
trace	sunrpc: use-after-free in svc_process_common()	2019-01-16 22:04:37 +01:00
uapi	Input: input_event - provide override for sparc64	2019-01-31 08:14:37 +01:00
video	fbdev changes for v4.19:	2018-08-23 15:44:58 -07:00
xen	Revert "xen/balloon: Mark unallocated host memory as UNUSABLE"	2018-12-17 09:24:39 +01:00