perf beauty: Introduce strarray__scnprintf_flags()

Generalizing pkey_alloc__scnprintf_access_rights(), so that we can use
it with other flags-like arguments, such as mount's mountflags argument.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Benjamin Peterson <benjamin@python.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-o3ymi3104m8moaz9865g09w9@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

2 files changed, 17 insertions, 11 deletions

diff --git a/tools/perf/trace/beauty/beauty.h b/tools/perf/trace/beauty/beauty.h
index 2570152d3909..a1806c4f3ccd 100644
--- a/tools/perf/trace/beauty/beauty.h
+++ b/tools/perf/trace/beauty/beauty.h
@@ -24,6 +24,7 @@ struct strarray {
 }
 
 size_t strarray__scnprintf(struct strarray *sa, char *bf, size_t size, const char *intfmt, int val);
+size_t strarray__scnprintf_flags(struct strarray *sa, char *bf, size_t size, unsigned long flags);
 
 struct trace;
 struct thread;
diff --git a/tools/perf/trace/beauty/pkey_alloc.c b/tools/perf/trace/beauty/pkey_alloc.c
index d3e5188a9bef..1b8ed4cac815 100644
--- a/tools/perf/trace/beauty/pkey_alloc.c
+++ b/tools/perf/trace/beauty/pkey_alloc.c
@@ -9,31 +9,28 @@
 #include <linux/kernel.h>
 #include <linux/log2.h>
 
-static size_t pkey_alloc__scnprintf_access_rights(int access_rights, char *bf, size_t size)
+size_t strarray__scnprintf_flags(struct strarray *sa, char *bf, size_t size, unsigned long flags)
 {
         int i, printed = 0;
 
-#include "trace/beauty/generated/pkey_alloc_access_rights_array.c"
-        static DEFINE_STRARRAY(pkey_alloc_access_rights);
-
-        if (access_rights == 0) {
-                const char *s = strarray__pkey_alloc_access_rights.entries[0];
+        if (flags == 0) {
+                const char *s = sa->entries[0];
                 if (s)
                         return scnprintf(bf, size, "%s", s);
                 return scnprintf(bf, size, "%d", 0);
         }
 
-        for (i = 1; i < strarray__pkey_alloc_access_rights.nr_entries; ++i) {
-                int bit = 1 << (i - 1);
+        for (i = 1; i < sa->nr_entries; ++i) {
+                unsigned long bit = 1UL << (i - 1);
 
-                if (!(access_rights & bit))
+                if (!(flags & bit))
                         continue;
 
                 if (printed != 0)
                         printed += scnprintf(bf + printed, size - printed, "|");
 
-                if (strarray__pkey_alloc_access_rights.entries[i] != NULL)
-                        printed += scnprintf(bf + printed, size - printed, "%s", strarray__pkey_alloc_access_rights.entries[i]);
+                if (sa->entries[i] != NULL)
+                        printed += scnprintf(bf + printed, size - printed, "%s", sa->entries[i]);
                 else
                         printed += scnprintf(bf + printed, size - printed, "0x%#", bit);
         }
@@ -41,6 +38,14 @@ static size_t pkey_alloc__scnprintf_access_rights(int access_rights, char *bf, s
         return printed;
 }
 
+static size_t pkey_alloc__scnprintf_access_rights(int access_rights, char *bf, size_t size)
+{
+#include "trace/beauty/generated/pkey_alloc_access_rights_array.c"
+        static DEFINE_STRARRAY(pkey_alloc_access_rights);
+
+        return strarray__scnprintf_flags(&strarray__pkey_alloc_access_rights, bf, size, access_rights);
+}
+
 size_t syscall_arg__scnprintf_pkey_alloc_access_rights(char *bf, size_t size, struct syscall_arg *arg)
 {
         unsigned long cmd = arg->val;