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Subject[PATCH 01/23] perf tools: Use session->fd instead of passing fd as argument
Date
Using session->fd instead of passing fd as argument because it's
always session->fd that's passed as fd argument.

Signed-off-by: Jiri Olsa <jolsa@redhat.com>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
---
tools/perf/util/header.c | 11 +++++------
tools/perf/util/header.h | 2 +-
tools/perf/util/session.c | 4 ++--
3 files changed, 8 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index b28a65e..b3f253f 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -2619,19 +2619,17 @@ static int perf_file_header__read_pipe(struct perf_pipe_file_header *header,
return 0;
}

-static int perf_header__read_pipe(struct perf_session *session, int fd)
+static int perf_header__read_pipe(struct perf_session *session)
{
struct perf_header *header = &session->header;
struct perf_pipe_file_header f_header;

- if (perf_file_header__read_pipe(&f_header, header, fd,
+ if (perf_file_header__read_pipe(&f_header, header, session->fd,
session->repipe) < 0) {
pr_debug("incompatible file format\n");
return -EINVAL;
}

- session->fd = fd;
-
return 0;
}

@@ -2725,20 +2723,21 @@ static int perf_evlist__prepare_tracepoint_events(struct perf_evlist *evlist,
return 0;
}

-int perf_session__read_header(struct perf_session *session, int fd)
+int perf_session__read_header(struct perf_session *session)
{
struct perf_header *header = &session->header;
struct perf_file_header f_header;
struct perf_file_attr f_attr;
u64 f_id;
int nr_attrs, nr_ids, i, j;
+ int fd = session->fd;

session->evlist = perf_evlist__new();
if (session->evlist == NULL)
return -ENOMEM;

if (session->fd_pipe)
- return perf_header__read_pipe(session, fd);
+ return perf_header__read_pipe(session);

if (perf_file_header__read(&f_header, header, fd) < 0)
return -EINVAL;
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index 669fda5..0bacb2d 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -96,7 +96,7 @@ struct perf_header {
struct perf_evlist;
struct perf_session;

-int perf_session__read_header(struct perf_session *session, int fd);
+int perf_session__read_header(struct perf_session *session);
int perf_session__write_header(struct perf_session *session,
struct perf_evlist *evlist,
int fd, bool at_exit);
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index d0d9f94..272c9cf 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -24,7 +24,7 @@ static int perf_session__open(struct perf_session *self, bool force)
self->fd_pipe = true;
self->fd = STDIN_FILENO;

- if (perf_session__read_header(self, self->fd) < 0)
+ if (perf_session__read_header(self) < 0)
pr_err("incompatible file format (rerun with -v to learn more)");

return 0;
@@ -56,7 +56,7 @@ static int perf_session__open(struct perf_session *self, bool force)
goto out_close;
}

- if (perf_session__read_header(self, self->fd) < 0) {
+ if (perf_session__read_header(self) < 0) {
pr_err("incompatible file format (rerun with -v to learn more)");
goto out_close;
}
--
1.7.11.7


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