linux-kernel - [PATCH v3 1/8] bitmap: align __reg_op() wrappers with modern coding style

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Message-Id: <20230815233628.45016-2-yury.norov@gmail.com>
Date:   Tue, 15 Aug 2023 16:36:21 -0700
From:   Yury Norov <yury.norov@...il.com>
To:     linux-kernel@...r.kernel.org,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Rasmus Villemoes <linux@...musvillemoes.dk>
Cc:     Yury Norov <yury.norov@...il.com>
Subject: [PATCH v3 1/8] bitmap: align __reg_op() wrappers with modern coding style

Fix comments so that scripts/kernel-doc doesn't warn, and fix for-loop
style in bitmap_find_free_region().

Signed-off-by: Yury Norov <yury.norov@...il.com>
---
 lib/bitmap.c | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/lib/bitmap.c b/lib/bitmap.c
index bf6b0eea1af8..76bf79261107 100644
--- a/lib/bitmap.c
+++ b/lib/bitmap.c
@@ -1238,8 +1238,8 @@ void bitmap_fold(unsigned long *dst, const unsigned long *orig,
  * some size '1 << order' (a power of two), aligned to that same
  * '1 << order' power of two.
  *
- * Returns 1 if REG_OP_ISFREE succeeds (region is all zero bits).
- * Returns 0 in all other cases and reg_ops.
+ * Return: 1 if REG_OP_ISFREE succeeds (region is all zero bits).
+ *	   0 in all other cases and reg_ops.
  */
 
 enum {
@@ -1311,14 +1311,14 @@ static int __reg_op(unsigned long *bitmap, unsigned int pos, int order, int reg_
  * a power (@order) of two, aligned to that power of two, which
  * makes the search algorithm much faster.
  *
- * Return the bit offset in bitmap of the allocated region,
+ * Return: the bit offset in bitmap of the allocated region,
  * or -errno on failure.
  */
 int bitmap_find_free_region(unsigned long *bitmap, unsigned int bits, int order)
 {
 	unsigned int pos, end;		/* scans bitmap by regions of size order */
 
-	for (pos = 0 ; (end = pos + (1U << order)) <= bits; pos = end) {
+	for (pos = 0; (end = pos + BIT(order)) <= bits; pos = end) {
 		if (!__reg_op(bitmap, pos, order, REG_OP_ISFREE))
 			continue;
 		__reg_op(bitmap, pos, order, REG_OP_ALLOC);
@@ -1336,8 +1336,6 @@ EXPORT_SYMBOL(bitmap_find_free_region);
  *
  * This is the complement to __bitmap_find_free_region() and releases
  * the found region (by clearing it in the bitmap).
- *
- * No return value.
  */
 void bitmap_release_region(unsigned long *bitmap, unsigned int pos, int order)
 {
@@ -1353,7 +1351,7 @@ EXPORT_SYMBOL(bitmap_release_region);
  *
  * Allocate (set bits in) a specified region of a bitmap.
  *
- * Return 0 on success, or %-EBUSY if specified region wasn't
+ * Return: 0 on success, or %-EBUSY if specified region wasn't
  * free (not all bits were zero).
  */
 int bitmap_allocate_region(unsigned long *bitmap, unsigned int pos, int order)
-- 
2.39.2