linux-kernel - [tip:perf/core] perf tools: Remove condition in machine__get_kernel_start

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Message-ID: <tip-2f37573507643407d0a8f38c676ed2e90b795db3@git.kernel.org>
Date:	Tue, 10 Dec 2013 01:16:26 -0800
From:	tip-bot for Dongsheng Yang <tipbot@...or.com>
To:	linux-tip-commits@...r.kernel.org
Cc:	acme@...hat.com, linux-kernel@...r.kernel.org, paulus@...ba.org,
	mingo@...hat.com, hpa@...or.com, mingo@...nel.org,
	a.p.zijlstra@...llo.nl, jolsa@...hat.com, dsahern@...il.com,
	tglx@...utronix.de, yangds.fnst@...fujitsu.com
Subject: [tip:perf/core] perf tools:
  Remove condition in machine__get_kernel_start_addr.

Commit-ID:  2f37573507643407d0a8f38c676ed2e90b795db3
Gitweb:     http://git.kernel.org/tip/2f37573507643407d0a8f38c676ed2e90b795db3
Author:     Dongsheng Yang <yangds.fnst@...fujitsu.com>
AuthorDate: Wed, 4 Dec 2013 17:56:39 -0500
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Wed, 4 Dec 2013 13:46:36 -0300

perf tools: Remove condition in machine__get_kernel_start_addr.

In machine__get_kernel_start_addr, the code, which is using
machine->root_dir to build filename, works for both host and guests
initialized from guestmount, as root_dir is set to "" for the host
machine in the machine__init() function.

So this patch remove the branch for machine__is_host.

Signed-off-by: Dongsheng Yang <yangds.fnst@...fujitsu.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Ingo Molnar <mingo@...hat.com>
Cc: Jiri Olsa <jolsa@...hat.com>
Cc: Paul Mackerras <paulus@...ba.org>
Cc: Peter Zijlstra <a.p.zijlstra@...llo.nl>
Link: http://lkml.kernel.org/r/0a81645dd0b384a12cb4f962cf193ef8c3ce2010.1386197481.git.yangds.fnst@cn.fujitsu.com
[ Clarified changeset mentioning root_dir setup in machine__init() ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/util/machine.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/machine.c b/tools/perf/util/machine.c
index 84cdb07..bac817a 100644
--- a/tools/perf/util/machine.c
+++ b/tools/perf/util/machine.c
@@ -502,15 +502,11 @@ static u64 machine__get_kernel_start_addr(struct machine *machine)
 	char path[PATH_MAX];
 	struct process_args args;
 
-	if (machine__is_host(machine)) {
-		filename = "/proc/kallsyms";
-	} else {
-		if (machine__is_default_guest(machine))
-			filename = (char *)symbol_conf.default_guest_kallsyms;
-		else {
-			sprintf(path, "%s/proc/kallsyms", machine->root_dir);
-			filename = path;
-		}
+	if (machine__is_default_guest(machine))
+		filename = (char *)symbol_conf.default_guest_kallsyms;
+	else {
+		sprintf(path, "%s/proc/kallsyms", machine->root_dir);
+		filename = path;
 	}
 
 	if (symbol__restricted_filename(filename, "/proc/kallsyms"))
--
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