linux-kernel - [PATCH v3 08/13] software node: introduce PROPERTY_ENTRY_ARRAY_XXX

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Date:   Mon,  9 Sep 2019 01:15:52 -0700
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     "Rafael J. Wysocki" <rafael@...nel.org>,
        Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
        Ard Biesheuvel <ard.biesheuvel@...aro.org>
Cc:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        linux-kernel@...r.kernel.org, platform-driver-x86@...r.kernel.org
Subject: [PATCH v3 08/13] software node: introduce PROPERTY_ENTRY_ARRAY_XXX_LEN()

Sometimes we want to initialize property entry array from a regular
pointer, when we can't determine length automatically via ARRAY_SIZE.
Let's introduce PROPERTY_ENTRY_ARRAY_XXX_LEN macros that take explicit
"len" argument.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@...il.com>
---
 include/linux/property.h | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/include/linux/property.h b/include/linux/property.h
index 911ace267247..793d05cbc3b2 100644
--- a/include/linux/property.h
+++ b/include/linux/property.h
@@ -280,6 +280,25 @@ struct property_entry {
 #define PROPERTY_ENTRY_STRING_ARRAY(_name_, _val_)			\
 	PROPERTY_ENTRY_ARRAY(_name_, str, STRING, _val_)
 
+#define PROPERTY_ENTRY_ARRAY_LEN(_name_, _elem_, _Type_, _val_, _len_)	\
+(struct property_entry) {						\
+	.name = _name_,							\
+	.length = (_len_) * PROPERTY_ENTRY_ELSIZE(_elem_),	\
+	.type = DEV_PROP_##_Type_,					\
+	.pointer._elem_ = _val_,					\
+}
+
+#define PROPERTY_ENTRY_U8_ARRAY_LEN(_name_, _val_, _len_)		\
+	PROPERTY_ENTRY_ARRAY_LEN(_name_, u8_data, U8, _val_, _len_)
+#define PROPERTY_ENTRY_U16_ARRAY_LEN(_name_, _val_, _len_)		\
+	PROPERTY_ENTRY_ARRAY_LEN(_name_, u16_data, U16, _val_, _len_)
+#define PROPERTY_ENTRY_U32_ARRAY_LEN(_name_, _val_, _len_)		\
+	PROPERTY_ENTRY_ARRAY_LEN(_name_, u32_data, U32, _val_, _len_)
+#define PROPERTY_ENTRY_U64_ARRAY_LEN(_name_, _val_, _len_)		\
+	PROPERTY_ENTRY_ARRAY_LEN(_name_, u64_data, U64, _val_, _len_)
+#define PROPERTY_ENTRY_STRING_ARRAY_LEN(_name_, _val_, _len_)		\
+	PROPERTY_ENTRY_ARRAY_LEN(_name_, str, STRING, _val_, _len_)
+
 #define PROPERTY_ENTRY_ELEMENT(_name_, _elem_, _Type_, _val_)	\
 (struct property_entry) {					\
 	.name = _name_,						\
-- 
2.23.0.187.g17f5b7556c-goog