linux-kernel - [PATCH v2 04/10] lib/test_min_heap: Update min_heap

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Message-Id: <20241020040200.939973-5-visitorckw@gmail.com>
Date: Sun, 20 Oct 2024 12:01:54 +0800
From: Kuan-Wei Chiu <visitorckw@...il.com>
To: colyli@...e.de,
	kent.overstreet@...ux.dev,
	msakai@...hat.com,
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Cc: mark.rutland@....com,
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	Kuan-Wei Chiu <visitorckw@...il.com>
Subject: [PATCH v2 04/10] lib/test_min_heap: Update min_heap_callbacks to use default builtin swap

Replace the swp function pointer in the min_heap_callbacks of
test_min_heap with NULL, allowing direct usage of the default builtin
swap implementation. This modification simplifies the code and improves
performance by removing unnecessary function indirection.

Signed-off-by: Kuan-Wei Chiu <visitorckw@...il.com>
---
Tested with test_min_heap module.

 lib/test_min_heap.c | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/lib/test_min_heap.c b/lib/test_min_heap.c
index 64c877e73b64..e6fbb798558b 100644
--- a/lib/test_min_heap.c
+++ b/lib/test_min_heap.c
@@ -23,14 +23,6 @@ static __init bool greater_than(const void *lhs, const void *rhs, void __always_
 	return *(int *)lhs > *(int *)rhs;
 }
 
-static __init void swap_ints(void *lhs, void *rhs, void __always_unused *args)
-{
-	int temp = *(int *)lhs;
-
-	*(int *)lhs = *(int *)rhs;
-	*(int *)rhs = temp;
-}
-
 static __init int pop_verify_heap(bool min_heap,
 				struct min_heap_test *heap,
 				const struct min_heap_callbacks *funcs)
@@ -72,7 +64,7 @@ static __init int test_heapify_all(bool min_heap)
 	};
 	struct min_heap_callbacks funcs = {
 		.less = min_heap ? less_than : greater_than,
-		.swp = swap_ints,
+		.swp = NULL,
 	};
 	int i, err;
 
@@ -104,7 +96,7 @@ static __init int test_heap_push(bool min_heap)
 	};
 	struct min_heap_callbacks funcs = {
 		.less = min_heap ? less_than : greater_than,
-		.swp = swap_ints,
+		.swp = NULL,
 	};
 	int i, temp, err;
 
@@ -136,7 +128,7 @@ static __init int test_heap_pop_push(bool min_heap)
 	};
 	struct min_heap_callbacks funcs = {
 		.less = min_heap ? less_than : greater_than,
-		.swp = swap_ints,
+		.swp = NULL,
 	};
 	int i, temp, err;
 
@@ -175,7 +167,7 @@ static __init int test_heap_del(bool min_heap)
 	heap.nr = ARRAY_SIZE(values);
 	struct min_heap_callbacks funcs = {
 		.less = min_heap ? less_than : greater_than,
-		.swp = swap_ints,
+		.swp = NULL,
 	};
 	int i, err;
 
-- 
2.34.1