linux-kernel - [tip:perf/urgent] perf tools: Fix include for non x86 architectures

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Date:	Sun, 2 Feb 2014 00:54:58 -0800
From:	tip-bot for Francesco Fusco <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, ffusco@...hat.com,
	hpa@...or.com, mingo@...nel.org, tglx@...utronix.de
Subject: [tip:perf/urgent] perf tools:
  Fix include for non x86 architectures

Commit-ID:  6a02652df511029127406cf8fa89cdf5e987f963
Gitweb:     http://git.kernel.org/tip/6a02652df511029127406cf8fa89cdf5e987f963
Author:     Francesco Fusco <ffusco@...hat.com>
AuthorDate: Mon, 27 Jan 2014 14:39:13 +0100
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Fri, 31 Jan 2014 17:21:42 -0300

perf tools: Fix include for non x86 architectures

Commit 71ae8aac ("lib: introduce arch optimized hash library") added an
include to <linux/hash.h> for setting up an architecture specific fast
hash.

Since perf includes directly the non-uapi kernel header, it cannot find
<asm/hash.h> on non-x86 and thus prevents perf to be compiled on every
architecture other than x86.

The problem is the inclusion of <asm/hash.h> in hash.h that results in
the following error originating from util/evlist.c:

  fatal error: asm/hash.h: No such file or directory

This commit simply adds an empty <asm/hash.h> stub/file to fix the
compile issue on non-x86 architectures.

As perf does not use any of these new functions, it fixes the
compilation and therefore seems to be the most appropriate solution to
go with.

Signed-off-by: Francesco Fusco <ffusco@...hat.com>
Link: http://lkml.kernel.org/r/2cf8143aad65a6aa6fe30325ef8a65847141afa2.1390829373.git.ffusco@redhat.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/include/asm/hash.h | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/tools/perf/util/include/asm/hash.h b/tools/perf/util/include/asm/hash.h
new file mode 100644
index 0000000..d82b170b
--- /dev/null
+++ b/tools/perf/util/include/asm/hash.h
@@ -0,0 +1,6 @@
+#ifndef __ASM_GENERIC_HASH_H
+#define __ASM_GENERIC_HASH_H
+
+/* Stub */
+
+#endif /* __ASM_GENERIC_HASH_H */
--
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