+ lib-rework-bitmap_parse-fix.patch added to -mm tree

[akpm@xxxxxxxxxxxxxxxxxxxx]

The patch titled
     Subject: lib: opencode in_str()
has been added to the -mm tree.  Its filename is
     lib-rework-bitmap_parse-fix.patch

This patch should soon appear at
    http://ozlabs.org/~akpm/mmots/broken-out/lib-rework-bitmap_parse-fix.patch
and later at
    http://ozlabs.org/~akpm/mmotm/broken-out/lib-rework-bitmap_parse-fix.patch

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------------------------------------------------------
From: Yury Norov <ynorov@xxxxxxxxxxx>
Subject: lib: opencode in_str()

Link: http://lkml.kernel.org/r/20190510022633.GA30629@yury-thinkpad
Signed-off-by: Yury Norov <ynorov@xxxxxxxxxxx>
Cc: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx>
Cc: Rasmus Villemoes <linux@xxxxxxxxxxxxxxxxxx>
Cc: Amritha Nambiar <amritha.nambiar@xxxxxxxxx>
Cc: Willem de Bruijn <willemb@xxxxxxxxxx>
Cc: Kees Cook <keescook@xxxxxxxxxxxx>
Cc: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Cc: "Tobin C . Harding" <tobin@xxxxxxxxxx>
Cc: Will Deacon <will.deacon@xxxxxxx>
Cc: Steffen Klassert <steffen.klassert@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 lib/bitmap.c |   11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

--- a/lib/bitmap.c~lib-rework-bitmap_parse-fix
+++ a/lib/bitmap.c
@@ -454,11 +454,6 @@ static inline bool end_of_region(char c)
 	return __end_of_region(c) || end_of_str(c);
 }
 
-static inline bool in_str(const char *start, const char *ptr)
-{
-	return start <= ptr;
-}
-
 /*
  * The format allows commas and whitespases at the beginning
  * of the region.
@@ -473,7 +468,7 @@ static const char *bitmap_find_region(co
 
 static const char *bitmap_find_region_reverse(const char *start, const char *end)
 {
-	while (in_str(start, end) && __end_of_region(*end))
+	while (start <= end && __end_of_region(*end))
 		end--;
 
 	return end;
@@ -618,7 +613,7 @@ static const char *bitmap_get_x32_revers
 
 		ret |= c << i;
 
-		if (!in_str(start, end) || __end_of_region(*end))
+		if (start > end || __end_of_region(*end))
 			goto out;
 	}
 
@@ -653,7 +648,7 @@ int bitmap_parse(const char *start, unsi
 	u32 *bitmap = (u32 *)maskp;
 	int unset_bit;
 
-	while (in_str(start, (end = bitmap_find_region_reverse(start, end)))) {
+	while (start <= (end = bitmap_find_region_reverse(start, end))) {
 		if (!chunks--)
 			return -EOVERFLOW;
 
_

Patches currently in -mm which might be from ynorov@xxxxxxxxxxx are

lib-rework-bitmap_parse-fix.patch