netdev - [PATCH] [PATCH bpf] style fix in while(!feof()) loop

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Date:   Sun, 26 May 2019 10:32:11 +0000
From:   Chang-Hsien Tsai <luke.tw@...il.com>
To:     netdev@...r.kernel.org
Cc:     ast@...nel.org, daniel@...earbox.net,
        Chang-Hsien Tsai <luke.tw@...il.com>
Subject: [PATCH] [PATCH bpf] style fix in while(!feof()) loop

use fgets() as the while loop condition.

Signed-off-by: Chang-Hsien Tsai <luke.tw@...il.com>
---
 tools/bpf/bpftool/xlated_dumper.c           | 4 +---
 tools/testing/selftests/bpf/trace_helpers.c | 4 +---
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/tools/bpf/bpftool/xlated_dumper.c b/tools/bpf/bpftool/xlated_dumper.c
index 0bb17bf88b18..494d7ae3614d 100644
--- a/tools/bpf/bpftool/xlated_dumper.c
+++ b/tools/bpf/bpftool/xlated_dumper.c
@@ -31,9 +31,7 @@ void kernel_syms_load(struct dump_data *dd)
 	if (!fp)
 		return;
 
-	while (!feof(fp)) {
-		if (!fgets(buff, sizeof(buff), fp))
-			break;
+	while (fgets(buff, sizeof(buff), fp)) {
 		tmp = reallocarray(dd->sym_mapping, dd->sym_count + 1,
 				   sizeof(*dd->sym_mapping));
 		if (!tmp) {
diff --git a/tools/testing/selftests/bpf/trace_helpers.c b/tools/testing/selftests/bpf/trace_helpers.c
index 9a9fc6c9b70b..b47f205f0310 100644
--- a/tools/testing/selftests/bpf/trace_helpers.c
+++ b/tools/testing/selftests/bpf/trace_helpers.c
@@ -30,9 +30,7 @@ int load_kallsyms(void)
 	if (!f)
 		return -ENOENT;
 
-	while (!feof(f)) {
-		if (!fgets(buf, sizeof(buf), f))
-			break;
+	while (fgets(buf, sizeof(buf), f)) {
 		if (sscanf(buf, "%p %c %s", &addr, &symbol, func) != 3)
 			break;
 		if (!addr)
-- 
2.17.1