[merged mm-stable] mm-cma-simplify-cma_debug_show_areas.patch removed from -mm tree

[merged mm-stable] mm-cma-simplify-cma_debug_show_areas.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm: cma: simplify cma_debug_show_areas()
has been removed from the -mm tree.  Its filename was
     mm-cma-simplify-cma_debug_show_areas.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Subject: mm: cma: simplify cma_debug_show_areas()
Date: Sat, 19 Jul 2025 16:53:59 -0400

The function opencodes for_each_clear_bitrange().  Fix that and drop most
of housekeeping code.

Link: https://lkml.kernel.org/r/20250719205401.399475-2-yury.norov@gmail.com
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/cma.c |   19 ++++---------------
 1 file changed, 4 insertions(+), 15 deletions(-)

--- a/mm/cma.c~mm-cma-simplify-cma_debug_show_areas
+++ a/mm/cma.c
@@ -751,8 +751,7 @@ int __init cma_declare_contiguous_nid(ph
 
 static void cma_debug_show_areas(struct cma *cma)
 {
-	unsigned long next_zero_bit, next_set_bit, nr_zero;
-	unsigned long start;
+	unsigned long start, end;
 	unsigned long nr_part;
 	unsigned long nbits;
 	int r;
@@ -763,22 +762,12 @@ static void cma_debug_show_areas(struct
 	for (r = 0; r < cma->nranges; r++) {
 		cmr = &cma->ranges[r];
 
-		start = 0;
 		nbits = cma_bitmap_maxno(cma, cmr);
 
 		pr_info("range %d: ", r);
-		for (;;) {
-			next_zero_bit = find_next_zero_bit(cmr->bitmap,
-							   nbits, start);
-			if (next_zero_bit >= nbits)
-				break;
-			next_set_bit = find_next_bit(cmr->bitmap, nbits,
-						     next_zero_bit);
-			nr_zero = next_set_bit - next_zero_bit;
-			nr_part = nr_zero << cma->order_per_bit;
-			pr_cont("%s%lu@%lu", start ? "+" : "", nr_part,
-				next_zero_bit);
-			start = next_zero_bit + nr_zero;
+		for_each_clear_bitrange(start, end, cmr->bitmap, nbits) {
+			nr_part = (end - start) << cma->order_per_bit;
+			pr_cont("%s%lu@%lu", start ? "+" : "", nr_part, start);
 		}
 		pr_info("\n");
 	}
_

Patches currently in -mm which might be from yury.norov@gmail.com are