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Message-ID: <20240925154355.1170859-3-andriy.shevchenko@linux.intel.com>
Date: Wed, 25 Sep 2024 18:43:35 +0300
From: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To: linux-kernel@...r.kernel.org
Cc: Andy Shevchenko <andy@...nel.org>,
Rasmus Villemoes <linux@...musvillemoes.dk>,
Andrew Morton <akpm@...ux-foundation.org>,
Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v1 2/2] resource: Introduce is_type_match() helper and use it
There are already a couple of places where we may replace
a few lines of code by calling a helper, which increases
readability while deduplicating the code.
Introduce is_type_match() helper and use it.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
kernel/resource.c | 23 ++++++++++-------------
1 file changed, 10 insertions(+), 13 deletions(-)
diff --git a/kernel/resource.c b/kernel/resource.c
index 6880c0e283dd..2d266b5ff881 100644
--- a/kernel/resource.c
+++ b/kernel/resource.c
@@ -297,6 +297,11 @@ int release_resource(struct resource *old)
EXPORT_SYMBOL(release_resource);
+static bool is_type_match(struct resource *p, unsigned long flags, unsigned long desc)
+{
+ return (p->flags & flags) == flags && (desc == IORES_DESC_NONE || desc == p->desc);
+}
+
/**
* find_next_iomem_res - Finds the lowest iomem resource that covers part of
* [@start..@end].
@@ -339,13 +344,9 @@ static int find_next_iomem_res(resource_size_t start, resource_size_t end,
if (p->end < start)
continue;
- if ((p->flags & flags) != flags)
- continue;
- if ((desc != IORES_DESC_NONE) && (desc != p->desc))
- continue;
-
/* Found a match, break */
- break;
+ if (is_type_match(p, flags, desc))
+ break;
}
if (p) {
@@ -542,7 +543,7 @@ static int __region_intersects(struct resource *parent, resource_size_t start,
int type = 0; int other = 0;
struct resource *p, *dp;
struct resource res, o;
- bool is_type, covered;
+ bool covered;
res.start = start;
res.end = start + size - 1;
@@ -550,9 +551,7 @@ static int __region_intersects(struct resource *parent, resource_size_t start,
for (p = parent->child; p ; p = p->sibling) {
if (!resource_intersection(p, &res, &o))
continue;
- is_type = (p->flags & flags) == flags &&
- (desc == IORES_DESC_NONE || desc == p->desc);
- if (is_type) {
+ if (is_type_match(p, flags, desc)) {
type++;
continue;
}
@@ -572,9 +571,7 @@ static int __region_intersects(struct resource *parent, resource_size_t start,
for_each_resource(p, dp, false) {
if (!resource_overlaps(dp, &res))
continue;
- is_type = (dp->flags & flags) == flags &&
- (desc == IORES_DESC_NONE || desc == dp->desc);
- if (is_type) {
+ if (is_type_match(dp, flags, desc)) {
type++;
/*
* Range from 'o.start' to 'dp->start'
--
2.43.0.rc1.1336.g36b5255a03ac
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