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tools: bpftool: For "feature probe" define "full_mode" bool as global 

The "full_mode" variable used for switching between full or partial
feature probing (i.e. with or without probing helpers that will log
warnings in kernel logs) was piped from the main do_probe() function
down to probe_helpers_for_progtype(), where it is needed.

Define it as a global variable: the calls will be more readable, and if
other similar flags were to be used in the future, we could use global
variables as well instead of extending again the list of arguments with
new flags.

Signed-off-by: Quentin Monnet <quentin@isovalent.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Acked-by: John Fastabend <john.fastabend@gmail.com>
Link: https://lore.kernel.org/bpf/20200429144506.8999-2-quentin@isovalent.com
This commit is contained in:
Quentin Monnet 2020-04-29 15:45:04 +01:00 committed by Daniel Borkmann
parent fd9c40c575
commit e3450b79df
1 changed files with 7 additions and 8 deletions
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15
tools/bpf/bpftool/feature.c
View File

@ -35,6 +35,8 @@ static const char * const helper_name[] = {
#undef BPF_HELPER_MAKE_ENTRY
static bool full_mode;
/* Miscellaneous utility functions */
static bool check_procfs(void)
@ -540,8 +542,7 @@ probe_helper_for_progtype(enum bpf_prog_type prog_type, bool supported_type,
static void
probe_helpers_for_progtype(enum bpf_prog_type prog_type, bool supported_type,
const char *define_prefix, bool full_mode,
__u32 ifindex)
const char *define_prefix, __u32 ifindex)
{
const char *ptype_name = prog_type_name[prog_type];
char feat_name[128];
@ -678,8 +679,7 @@ static void section_map_types(const char *define_prefix, __u32 ifindex)
}
static void
section_helpers(bool *supported_types, const char *define_prefix,
bool full_mode, __u32 ifindex)
section_helpers(bool *supported_types, const char *define_prefix, __u32 ifindex)
{
unsigned int i;
@ -704,8 +704,8 @@ section_helpers(bool *supported_types, const char *define_prefix,
define_prefix, define_prefix, define_prefix,
define_prefix);
for (i = BPF_PROG_TYPE_UNSPEC + 1; i < ARRAY_SIZE(prog_type_name); i++)
probe_helpers_for_progtype(i, supported_types[i],
define_prefix, full_mode, ifindex);
probe_helpers_for_progtype(i, supported_types[i], define_prefix,
ifindex);
print_end_section();
}
@ -725,7 +725,6 @@ static int do_probe(int argc, char **argv)
enum probe_component target = COMPONENT_UNSPEC;
const char *define_prefix = NULL;
bool supported_types[128] = {};
bool full_mode = false;
__u32 ifindex = 0;
char *ifname;
@ -803,7 +802,7 @@ static int do_probe(int argc, char **argv)
goto exit_close_json;
section_program_types(supported_types, define_prefix, ifindex);
section_map_types(define_prefix, ifindex);
section_helpers(supported_types, define_prefix, full_mode, ifindex);
section_helpers(supported_types, define_prefix, ifindex);
section_misc(define_prefix, ifindex);
exit_close_json: