From: Burak Emir <bqe@google.com>
Date: Mon, 8 Sep 2025 07:21:51 +0000 (+0000)
Subject: rust: add bindings for bitmap.h
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=0452b4ab2961093f23bb289b0112351b917fb23c;p=thirdparty%2Fkernel%2Fstable.git

rust: add bindings for bitmap.h

Makes the bitmap_copy_and_extend inline function available to Rust.
Adds F: to existing MAINTAINERS section BITMAP API BINDINGS [RUST].

-

Suggested-by: Alice Ryhl <aliceryhl@google.com>
Suggested-by: Yury Norov <yury.norov@gmail.com>
Signed-off-by: Burak Emir <bqe@google.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Acked-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
Signed-off-by: Yury Norov (NVIDIA) <yury.norov@gmail.com>
---

diff --git a/MAINTAINERS b/MAINTAINERS
index 4a2db6c4b8abf..543e4e8571247 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4299,6 +4299,7 @@ F:	tools/lib/find_bit.c
 BITMAP API BINDINGS [RUST]
 M:	Yury Norov <yury.norov@gmail.com>
 S:	Maintained
+F:	rust/helpers/bitmap.c
 F:	rust/helpers/cpumask.c
 
 BITOPS API
diff --git a/rust/bindings/bindings_helper.h b/rust/bindings/bindings_helper.h
index 84d60635e8a9b..7bb575043c862 100644
--- a/rust/bindings/bindings_helper.h
+++ b/rust/bindings/bindings_helper.h
@@ -36,6 +36,7 @@
 #include <drm/drm_ioctl.h>
 #include <kunit/test.h>
 #include <linux/auxiliary_bus.h>
+#include <linux/bitmap.h>
 #include <linux/blk-mq.h>
 #include <linux/blk_types.h>
 #include <linux/blkdev.h>
diff --git a/rust/helpers/bitmap.c b/rust/helpers/bitmap.c
new file mode 100644
index 0000000000000..a50e2f082e47a
--- /dev/null
+++ b/rust/helpers/bitmap.c
@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/bitmap.h>
+
+void rust_helper_bitmap_copy_and_extend(unsigned long *to, const unsigned long *from,
+		unsigned int count, unsigned int size)
+{
+	bitmap_copy_and_extend(to, from, count, size);
+}
diff --git a/rust/helpers/helpers.c b/rust/helpers/helpers.c
index 7cf7fe95e41dd..8437736fdf284 100644
--- a/rust/helpers/helpers.c
+++ b/rust/helpers/helpers.c
@@ -8,6 +8,7 @@
  */
 
 #include "auxiliary.c"
+#include "bitmap.c"
 #include "blk.c"
 #include "bug.c"
 #include "build_assert.c"