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tools: bpftool: remove new lines from errors

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It's a little bit unusual for kernel style, but we add the new line
character to error strings inside the p_err() function.  We do this
because new lines at the end of error strings will break JSON output.

Fix a few p_err("..\n") which snuck in recently.

Fixes: 5ccda64d38 ("bpftool: implement cgroup bpf operations")
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: Quentin Monnet <quentin.monnet@netronome.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
This commit is contained in:
Jakub Kicinski 2018-01-02 14:48:37 -08:00 • committed by Daniel Borkmann
parent 6ebe6dbd68
commit b4fac96d9a
2 changed files with 11 additions and 11 deletions
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18
tools/bpf/bpftool/cgroup.c
View file

@ -124,16 +124,16 @@ static int do_show(int argc, char **argv)
int ret = -1;
if (argc < 1) {
p_err("too few parameters for cgroup show\n");
p_err("too few parameters for cgroup show");
goto exit;
} else if (argc > 1) {
p_err("too many parameters for cgroup show\n");
p_err("too many parameters for cgroup show");
goto exit;
}
cgroup_fd = open(argv[0], O_RDONLY);
if (cgroup_fd < 0) {
p_err("can't open cgroup %s\n", argv[1]);
p_err("can't open cgroup %s", argv[1]);
goto exit;
}
@ -171,19 +171,19 @@ static int do_attach(int argc, char **argv)
int i;
if (argc < 4) {
p_err("too few parameters for cgroup attach\n");
p_err("too few parameters for cgroup attach");
goto exit;
}
cgroup_fd = open(argv[0], O_RDONLY);
if (cgroup_fd < 0) {
p_err("can't open cgroup %s\n", argv[1]);
p_err("can't open cgroup %s", argv[1]);
goto exit;
}
attach_type = parse_attach_type(argv[1]);
if (attach_type == __MAX_BPF_ATTACH_TYPE) {
p_err("invalid attach type\n");
p_err("invalid attach type");
goto exit_cgroup;
}
@ -199,7 +199,7 @@ static int do_attach(int argc, char **argv)
} else if (is_prefix(argv[i], "override")) {
attach_flags |= BPF_F_ALLOW_OVERRIDE;
} else {
p_err("unknown option: %s\n", argv[i]);
p_err("unknown option: %s", argv[i]);
goto exit_cgroup;
}
}
@ -229,13 +229,13 @@ static int do_detach(int argc, char **argv)
int ret = -1;
if (argc < 4) {
p_err("too few parameters for cgroup detach\n");
p_err("too few parameters for cgroup detach");
goto exit;
}
cgroup_fd = open(argv[0], O_RDONLY);
if (cgroup_fd < 0) {
p_err("can't open cgroup %s\n", argv[1]);
p_err("can't open cgroup %s", argv[1]);
goto exit;
}

4
tools/bpf/bpftool/prog.c
View file

@ -813,12 +813,12 @@ static int do_load(int argc, char **argv)
usage();
if (bpf_prog_load(argv[0], BPF_PROG_TYPE_UNSPEC, &obj, &prog_fd)) {
p_err("failed to load program\n");
p_err("failed to load program");
return -1;
}
if (do_pin_fd(prog_fd, argv[1])) {
p_err("failed to pin program\n");
p_err("failed to pin program");
return -1;
}