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Subject[PATCH] kernel.h/checkpatch: Mark strict_strto<foo> and simple_strto<foo> as obsolete
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Date
Mark obsolete/deprecated strict_strto<foo> and simple_strto<foo>
functions and macros as obsolete.

Update checkpatch to warn about their use.

Signed-off-by: Joe Perches <joe@perches.com>

---
include/linux/kernel.h | 4 ++++
scripts/checkpatch.pl | 6 +++---
2 files changed, 7 insertions(+), 3 deletions(-)
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 46ac9a5..1f9bc02 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -287,6 +287,8 @@ static inline int __must_check kstrtos32_from_user(const char __user *s, size_t
return kstrtoint_from_user(s, count, base, res);
}

+/* Obsolete, do not use. Use kstrto<foo> instead */
+
extern unsigned long simple_strtoul(const char *,char **,unsigned int);
extern long simple_strtol(const char *,char **,unsigned int);
extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
@@ -296,6 +298,8 @@ extern long long simple_strtoll(const char *,char **,unsigned int);
#define strict_strtoull kstrtoull
#define strict_strtoll kstrtoll

+/* lib/printf utilities */
+
extern int sprintf(char * buf, const char * fmt, ...)
__attribute__ ((format (printf, 2, 3)));
extern int vsprintf(char *buf, const char *, va_list)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 9d761c9..bf1734a 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -3150,10 +3150,10 @@ sub process {
"consider using a completion\n" . $herecurr);

}
-# recommend kstrto* over simple_strto*
- if ($line =~ /\bsimple_(strto.*?)\s*\(/) {
+# recommend kstrto* over simple_strto* and strict_strto*
+ if ($line =~ /\b((simple|strict)_(strto(l|ll|ul|ull)))\s*\(/) {
WARN("CONSIDER_KSTRTO",
- "consider using kstrto* in preference to simple_$1\n" . $herecurr);
+ "$1 is obsolete, use k$3 instead\n" . $herecurr);
}
# check for __initcall(), use device_initcall() explicitly please
if ($line =~ /^.\s*__initcall\s*\(/) {



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