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Zi Shen Lim 98397fc547 arm64: bpf: jit JMP_JSET_{X,K} 
Original implementation commit e54bcde3d6 ("arm64: eBPF JIT compiler")
had the relevant code paths, but due to an oversight always fail jiting.

As a result, we had been falling back to BPF interpreter whenever a BPF
program has JMP_JSET_{X,K} instructions.

With this fix, we confirm that the corresponding tests in lib/test_bpf
continue to pass, and also jited.

...
[    2.784553] test_bpf: #30 JSET jited:1 188 192 197 PASS
[    2.791373] test_bpf: #31 tcpdump port 22 jited:1 325 677 625 PASS
[    2.808800] test_bpf: #32 tcpdump complex jited:1 323 731 991 PASS
...
[    3.190759] test_bpf: #237 JMP_JSET_K: if (0x3 & 0x2) return 1 jited:1 110 PASS
[    3.192524] test_bpf: #238 JMP_JSET_K: if (0x3 & 0xffffffff) return 1 jited:1 98 PASS
[    3.211014] test_bpf: #249 JMP_JSET_X: if (0x3 & 0x2) return 1 jited:1 120 PASS
[    3.212973] test_bpf: #250 JMP_JSET_X: if (0x3 & 0xffffffff) return 1 jited:1 89 PASS
...

Fixes: e54bcde3d6 ("arm64: eBPF JIT compiler")
Signed-off-by: Zi Shen Lim <zlim.lnx@gmail.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Yang Shi <yang.shi@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-05-14 16:11:45 -04:00
..
boot Here are a couple last-minute fixes for ARM SoCs. Most of them 2016-05-05 15:31:35 -07:00
configs arm64: defconfig: updates for 4.6 2016-03-29 16:56:00 +01:00
crypto Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2016-03-17 11:22:54 -07:00
include KVM/ARM Fixes for v4.6-rc4 2016-04-08 14:17:27 +02:00
kernel arm64: Fix EL1/EL2 early init inconsistencies with VHE 2016-04-21 18:34:23 +01:00
kvm arm64: KVM: Warn when PARange is less than 40 bits 2016-04-06 13:33:14 +02:00
lib arm64 updates for 4.6: 2016-03-17 20:03:47 -07:00
mm 2nd set of arm64 updates for 4.6: 2016-03-24 19:13:59 -07:00
net arm64: bpf: jit JMP_JSET_{X,K} 2016-05-14 16:11:45 -04:00
xen xen/arm: introduce HYPERVISOR_platform_op on arm and arm64 2015-12-21 14:40:56 +00:00
Kconfig arm64 updates for 4.6: 2016-03-17 20:03:47 -07:00
Kconfig.debug arm64: enable CONFIG_DEBUG_RODATA by default 2016-03-03 18:14:17 +00:00
Kconfig.platforms Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2016-03-24 10:29:44 -07:00
Makefile arm64 updates for 4.6: 2016-03-17 20:03:47 -07:00