linux-kernel - [tip:perf/core] perf report: Ignore kptr_restrict when not sampling the kernel

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Message-ID: <tip-7dn926v3at8txxkky92aesz2@git.kernel.org>
Date:   Tue, 28 Nov 2017 22:32:42 -0800
From:   tip-bot for Arnaldo Carvalho de Melo <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     jolsa@...nel.org, wangnan0@...wei.com,
        linux-kernel@...r.kernel.org, dsahern@...il.com,
        tglx@...utronix.de, hpa@...or.com, adrian.hunter@...el.com,
        mingo@...nel.org, torvalds@...ux-foundation.org,
        namhyung@...nel.org, acme@...hat.com
Subject: [tip:perf/core] perf report: Ignore kptr_restrict when not sampling
 the kernel

Commit-ID:  3f0a4c873cb341d0cb61493d8dec7662bcaa7ca7
Gitweb:     https://git.kernel.org/tip/3f0a4c873cb341d0cb61493d8dec7662bcaa7ca7
Author:     Arnaldo Carvalho de Melo <acme@...hat.com>
AuthorDate: Tue, 14 Nov 2017 11:12:11 -0300
Committer:  Arnaldo Carvalho de Melo <acme@...hat.com>
CommitDate: Tue, 28 Nov 2017 14:24:52 -0300

perf report: Ignore kptr_restrict when not sampling the kernel

If none of the evsels has attr.exclude_kernel set to zero, no kernel
samples, so no point in warning the user about problems in processing
kernel samples, as there will be none.

Cc: Adrian Hunter <adrian.hunter@...el.com>
Cc: David Ahern <dsahern@...il.com>
Cc: Jiri Olsa <jolsa@...nel.org>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Namhyung Kim <namhyung@...nel.org>
Cc: Wang Nan <wangnan0@...wei.com>
Link: http://lkml.kernel.org/n/tip-7dn926v3at8txxkky92aesz2@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>
---
 tools/perf/builtin-report.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 1394cd8..af5dd03 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -441,6 +441,9 @@ static void report__warn_kptr_restrict(const struct report *rep)
 	struct map *kernel_map = machine__kernel_map(&rep->session->machines.host);
 	struct kmap *kernel_kmap = kernel_map ? map__kmap(kernel_map) : NULL;
 
+	if (perf_evlist__exclude_kernel(rep->session->evlist))
+		return;
+
 	if (kernel_map == NULL ||
 	    (kernel_map->dso->hit &&
 	     (kernel_kmap->ref_reloc_sym == NULL ||