diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-5.4/950-0449-resource-Add-a-resource_list_first_type-helper.patch')
-rw-r--r-- | target/linux/bcm27xx/patches-5.4/950-0449-resource-Add-a-resource_list_first_type-helper.patch | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-5.4/950-0449-resource-Add-a-resource_list_first_type-helper.patch b/target/linux/bcm27xx/patches-5.4/950-0449-resource-Add-a-resource_list_first_type-helper.patch new file mode 100644 index 0000000000..c2c959a3c1 --- /dev/null +++ b/target/linux/bcm27xx/patches-5.4/950-0449-resource-Add-a-resource_list_first_type-helper.patch @@ -0,0 +1,36 @@ +From dacb1a46835914b8c3862db15726bcc0a68af8f5 Mon Sep 17 00:00:00 2001 +From: Rob Herring <robh@kernel.org> +Date: Mon, 28 Oct 2019 11:32:32 -0500 +Subject: [PATCH] resource: Add a resource_list_first_type helper + +commit 494f8b10d832456a96be4ee7317425f6936cabc8 upstream. + +A common pattern is looping over a resource_list just to get a matching +entry with a specific type. Add resource_list_first_type() helper which +implements this. + +Signed-off-by: Rob Herring <robh@kernel.org> +Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> +--- + include/linux/resource_ext.h | 12 ++++++++++++ + 1 file changed, 12 insertions(+) + +--- a/include/linux/resource_ext.h ++++ b/include/linux/resource_ext.h +@@ -66,4 +66,16 @@ resource_list_destroy_entry(struct resou + #define resource_list_for_each_entry_safe(entry, tmp, list) \ + list_for_each_entry_safe((entry), (tmp), (list), node) + ++static inline struct resource_entry * ++resource_list_first_type(struct list_head *list, unsigned long type) ++{ ++ struct resource_entry *entry; ++ ++ resource_list_for_each_entry(entry, list) { ++ if (resource_type(entry->res) == type) ++ return entry; ++ } ++ return NULL; ++} ++ + #endif /* _LINUX_RESOURCE_EXT_H */ |