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Message-Id: <1469671557-2256-1-git-send-email-rui.teng@linux.vnet.ibm.com>
Date:	Thu, 28 Jul 2016 10:05:56 +0800
From:	Rui Teng <rui.teng@...ux.vnet.ibm.com>
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...hat.com, alexander.shishkin@...ux.intel.com,
	peterz@...radead.org, Arnaldo Carvalho de Melo <acme@...nel.org>,
	Rui Teng <rui.teng@...ux.vnet.ibm.com>
Subject: [PATCH 1/2] perf: Fix errors reported by checkpatch.pl scripts

Clear all the errors and also some warnings reported by checkpatch.pl scripts
for file tools/perf/util/header.c

Signed-off-by: Rui Teng <rui.teng@...ux.vnet.ibm.com>
---
 tools/perf/util/header.c | 60 ++++++++++++++++++++++++++----------------------
 1 file changed, 33 insertions(+), 27 deletions(-)

diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 8f0db40..8d76d55 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -256,7 +256,8 @@ static int __write_cpudesc(int fd, const char *cpuinfo_proc)
 			while (*q && isspace(*q))
 				q++;
 			if (q != (p+1))
-				while ((*r++ = *q++));
+				while ((*r++ = *q++))
+					;
 		}
 		p++;
 	}
@@ -278,6 +279,7 @@ static int write_cpudesc(int fd, struct perf_header *h __maybe_unused,
 
 	for (i = 0; i < ARRAY_SIZE(cpuinfo_procs); i++) {
 		int ret;
+
 		ret = __write_cpudesc(fd, cpuinfo_procs[i]);
 		if (ret >= 0)
 			return ret;
@@ -479,7 +481,7 @@ try_threads:
 	}
 	ret = 0;
 done:
-	if(fp)
+	if (fp)
 		fclose(fp);
 	free(buf);
 	return ret;
@@ -1036,24 +1038,28 @@ static int write_cache(int fd, struct perf_header *h __maybe_unused,
 		struct cpu_cache_level *c = &caches[i];
 
 		#define _W(v)					\
+		do {						\
 			ret = do_write(fd, &c->v, sizeof(u32));	\
 			if (ret < 0)				\
-				goto out;
+				goto out;			\
+		} while (0)
 
-		_W(level)
-		_W(line_size)
-		_W(sets)
-		_W(ways)
+		_W(level);
+		_W(line_size);
+		_W(sets);
+		_W(ways);
 		#undef _W
 
 		#define _W(v)						\
+		do {							\
 			ret = do_write_string(fd, (const char *) c->v);	\
 			if (ret < 0)					\
-				goto out;
+				goto out;				\
+		} while (0)
 
-		_W(type)
-		_W(size)
-		_W(map)
+		_W(type);
+		_W(size);
+		_W(map);
 		#undef _W
 	}
 
@@ -1312,8 +1318,7 @@ static void print_numa_topology(struct perf_header *ph, int fd __maybe_unused,
 	for (i = 0; i < ph->env.nr_numa_nodes; i++) {
 		n = &ph->env.numa_nodes[i];
 
-		fprintf(fp, "# node%u meminfo  : total = %"PRIu64" kB,"
-			    " free = %"PRIu64" kB\n",
+		fprintf(fp, "# node%u meminfo  : total = %"PRIu64" kB, free = %"PRIu64" kB\n",
 			n->node, n->mem_total, n->mem_free);
 
 		fprintf(fp, "# node%u cpu list : ", n->node);
@@ -1570,6 +1575,7 @@ static int process_tracing_data(struct perf_file_section *section __maybe_unused
 				int fd, void *data)
 {
 	ssize_t ret = trace_report(fd, data, false);
+
 	return ret < 0 ? -1 : 0;
 }
 
@@ -1862,8 +1868,7 @@ static int process_cpu_topology(struct perf_file_section *section,
 			nr = bswap_32(nr);
 
 		if (nr > (u32)cpu_nr) {
-			pr_debug("socket_id number is too big."
-				 "You may need to upgrade the perf tool.\n");
+			pr_debug("socket_id number is too big. You may need to upgrade the perf tool.\n");
 			goto free_cpu;
 		}
 
@@ -2226,8 +2231,8 @@ static int perf_file_section__fprintf_info(struct perf_file_section *section,
 	struct header_print_data *hd = data;
 
 	if (lseek(fd, section->offset, SEEK_SET) == (off_t)-1) {
-		pr_debug("Failed to lseek to %" PRIu64 " offset for feature "
-				"%d, continuing...\n", section->offset, feat);
+		pr_debug("Failed to lseek to %" PRIu64 " offset for feature %d, continuing...\n",
+			 section->offset, feat);
 		return 0;
 	}
 	if (feat >= HEADER_LAST_FEATURE) {
@@ -2251,6 +2256,7 @@ int perf_header__fprintf_info(struct perf_session *session, FILE *fp, bool full)
 	struct header_print_data hd;
 	struct perf_header *header = &session->header;
 	int fd = perf_data_file__fd(session->file);
+
 	hd.fp = fp;
 	hd.full = full;
 
@@ -2668,8 +2674,8 @@ static int perf_file_section__process(struct perf_file_section *section,
 				      int feat, int fd, void *data)
 {
 	if (lseek(fd, section->offset, SEEK_SET) == (off_t)-1) {
-		pr_debug("Failed to lseek to %" PRIu64 " offset for feature "
-			  "%d, continuing...\n", section->offset, feat);
+		pr_debug("Failed to lseek to %" PRIu64 " offset for feature %d, continuing...\n",
+			 section->offset, feat);
 		return 0;
 	}
 
@@ -2751,16 +2757,16 @@ static int read_attr(int fd, struct perf_header *ph,
 		/* assume ABI0 */
 		sz =  PERF_ATTR_SIZE_VER0;
 	} else if (sz > our_sz) {
-		pr_debug("file uses a more recent and unsupported ABI"
-			 " (%zu bytes extra)\n", sz - our_sz);
+		pr_debug("file uses a more recent and unsupported ABI (%zu bytes extra)\n",
+			 sz - our_sz);
 		return -1;
 	}
 	/* what we have not yet read and that we know about */
 	left = sz - PERF_ATTR_SIZE_VER0;
 	if (left) {
 		void *ptr = attr;
-		ptr += PERF_ATTR_SIZE_VER0;
 
+		ptr += PERF_ATTR_SIZE_VER0;
 		ret = readn(fd, ptr, left);
 	}
 	/* read perf_file_section, ids are read in caller */
@@ -3002,7 +3008,7 @@ perf_event__synthesize_event_update_scale(struct perf_tool *tool,
 
 	ev_data = (struct event_update_event_scale *) ev->data;
 	ev_data->scale = evsel->scale;
-	err = process(tool, (union perf_event*) ev, NULL, NULL);
+	err = process(tool, (union perf_event *) ev, NULL, NULL);
 	free(ev);
 	return err;
 }
@@ -3021,7 +3027,7 @@ perf_event__synthesize_event_update_name(struct perf_tool *tool,
 		return -ENOMEM;
 
 	strncpy(ev->data, evsel->name, len);
-	err = process(tool, (union perf_event*) ev, NULL, NULL);
+	err = process(tool, (union perf_event *) ev, NULL, NULL);
 	free(ev);
 	return err;
 }
@@ -3052,7 +3058,7 @@ perf_event__synthesize_event_update_cpus(struct perf_tool *tool,
 				 evsel->own_cpus,
 				 type, max);
 
-	err = process(tool, (union perf_event*) ev, NULL, NULL);
+	err = process(tool, (union perf_event *) ev, NULL, NULL);
 	free(ev);
 	return err;
 }
@@ -3146,9 +3152,8 @@ int perf_event__process_attr(struct perf_tool *tool __maybe_unused,
 	if (perf_evsel__alloc_id(evsel, 1, n_ids))
 		return -ENOMEM;
 
-	for (i = 0; i < n_ids; i++) {
+	for (i = 0; i < n_ids; i++)
 		perf_evlist__id_add(evlist, evsel, 0, i, event->attr.id[i]);
-	}
 
 	symbol_conf.nr_events = evlist->nr_entries;
 
@@ -3269,6 +3274,7 @@ int perf_event__process_tracing_data(struct perf_tool *tool __maybe_unused,
 	}
 	if (session->repipe) {
 		int retw = write(STDOUT_FILENO, buf, padding);
+
 		if (retw <= 0 || retw != padding) {
 			pr_err("%s: repiping tracing data padding", __func__);
 			return -1;
-- 
2.7.4

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