Alexander Lobakin f596cf0d80 MIPS: BPF: eBPF JIT: check for MIPS ISA compliance in Kconfig ... It is completely wrong to check for compile-time MIPS ISA revision in the body of bpf_int_jit_compile() as it may lead to get MIPS JIT fully omitted by the CC while the rest system will think that the JIT is actually present and works [1]. We can check if the selected CPU really supports MIPS eBPF JIT at configure time and avoid such situations when kernel can be built without both JIT and interpreter, but with CONFIG_BPF_SYSCALL=y. [1] https://lore.kernel.org/linux-mips/09d713a59665d745e21d021deeaebe0a@dlink.ru/ Fixes: 716850ab10 ("MIPS: eBPF: Initial eBPF support for MIPS32 architecture.") Cc: <stable@vger.kernel.org> # v5.2+ Signed-off-by: Alexander Lobakin <alobakin@dlink.ru> Signed-off-by: Paul Burton <paulburton@kernel.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: James Hogan <jhogan@kernel.org> Cc: Hassan Naveed <hnaveed@wavecomp.com> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Martin KaFai Lau <kafai@fb.com> Cc: Song Liu <songliubraving@fb.com> Cc: Yonghong Song <yhs@fb.com> Cc: Andrii Nakryiko <andriin@fb.com> Cc: linux-mips@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: netdev@vger.kernel.org Cc: bpf@vger.kernel.org		2019-12-18 15:15:04 -08:00
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bpf_jit.h	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441	2019-06-05 17:37:17 +02:00
ebpf_jit.c	MIPS: BPF: eBPF JIT: check for MIPS ISA compliance in Kconfig	2019-12-18 15:15:04 -08:00
Makefile	treewide: Add SPDX license identifier - Makefile/Kconfig	2019-05-21 10:50:46 +02:00