[PATCH v3 05/11] s390/cio: rename bitmap_size() -> idset_bitmap_size()

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bitmap_size() is a pretty generic name and one may want to use it for
a generic bitmap API function. At the same time, its logic is not
"generic", i.e. it's not just `nbits -> size of bitmap in bytes`
converter as it would be expected from its name.
Add the prefix 'idset_' used throughout the file where the function

Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@xxxxxxxxx>
Signed-off-by: Alexander Lobakin <aleksander.lobakin@xxxxxxxxx>
idset_new() really wants its vmalloc() + memset() pair to be replaced
with vzalloc().
 drivers/s390/cio/idset.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/s390/cio/idset.c b/drivers/s390/cio/idset.c
index 45f9c0736be4..0a1105a483bf 100644
--- a/drivers/s390/cio/idset.c
+++ b/drivers/s390/cio/idset.c
@@ -16,7 +16,7 @@ struct idset {
 	unsigned long bitmap[];
-static inline unsigned long bitmap_size(int num_ssid, int num_id)
+static inline unsigned long idset_bitmap_size(int num_ssid, int num_id)
 	return BITS_TO_LONGS(num_ssid * num_id) * sizeof(unsigned long);
@@ -25,11 +25,12 @@ static struct idset *idset_new(int num_ssid, int num_id)
 	struct idset *set;
-	set = vmalloc(sizeof(struct idset) + bitmap_size(num_ssid, num_id));
+	set = vmalloc(sizeof(struct idset) +
+		      idset_bitmap_size(num_ssid, num_id));
 	if (set) {
 		set->num_ssid = num_ssid;
 		set->num_id = num_id;
-		memset(set->bitmap, 0, bitmap_size(num_ssid, num_id));
+		memset(set->bitmap, 0, idset_bitmap_size(num_ssid, num_id));
 	return set;
@@ -41,7 +42,8 @@ void idset_free(struct idset *set)
 void idset_fill(struct idset *set)
-	memset(set->bitmap, 0xff, bitmap_size(set->num_ssid, set->num_id));
+	memset(set->bitmap, 0xff,
+	       idset_bitmap_size(set->num_ssid, set->num_id));
 static inline void idset_add(struct idset *set, int ssid, int id)

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