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From: David Daney <david.daney@cavium.com>
To: Alexei Starovoitov <ast@kernel.org>,
	Daniel Borkmann <daniel@iogearbox.net>,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-mips@linux-mips.org, ralf@linux-mips.org,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>,
	linux-arm-kernel@lists.infradead.org
Cc: David Daney <david.daney@cavium.com>
Subject: [PATCH RFC 1/3] arm64: Gate inclusion of asm/sysreg.h by __EMITTING_BPF__
Date: Thu, 15 Jun 2017 15:35:41 -0700	[thread overview]
Message-ID: <20170615223543.22867-2-david.daney@cavium.com> (raw)
In-Reply-To: <20170615223543.22867-1-david.daney@cavium.com>

Compilation to eBPF chokes on the inline asm in asm/sysreg.h, so don't
include it when compiling to a BPF target.

Signed-off-by: David Daney <david.daney@cavium.com>
---
 arch/arm64/include/asm/sysreg.h | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 15c142ce991c..faa8f853e369 100644
--- a/arch/arm64/include/asm/sysreg.h
+++ b/arch/arm64/include/asm/sysreg.h
@@ -20,6 +20,8 @@
 #ifndef __ASM_SYSREG_H
 #define __ASM_SYSREG_H
 
+#ifndef __EMITTING_BPF__
+
 #include <linux/stringify.h>
 
 /*
@@ -502,5 +504,5 @@ static inline void config_sctlr_el1(u32 clear, u32 set)
 }
 
 #endif
-
+#endif  /* __EMITTING_BPF__ */
 #endif	/* __ASM_SYSREG_H */
-- 
2.11.0

  reply	other threads:[~2017-06-15 22:36 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-15 22:35 [PATCH RFC 0/3] bpf/arm64/mips: Avoid inline asm in BPF David Daney
2017-06-15 22:35 ` David Daney [this message]
2017-06-15 22:35 ` [PATCH RFC 2/3] samples/bpf: Add define __EMITTING_BPF__ when building BPF David Daney
2017-06-16 10:24   ` Daniel Borkmann
2017-06-16 16:14     ` David Miller
2017-06-19 14:37   ` Andy Gospodarek
2017-06-15 22:35 ` [PATCH RFC 3/3] MIPS: Include file changes to enable building BPF code with llvm David Daney

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