lkml.org 
[lkml]   [2008]   [May]   [16]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Subject[RFC-PATCH] lib: add byteorder helpers for the aligned case
From
Date
Some users know the pointer they are writing to are aligned,
rather than doing *(__le16 *)ptr = cpu_to_le16(val) add helpers
wrapping this up that have the same convention as put_unaligned_le/be.

Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
---
Alan, as requested, I'm looking around a bit to see if there are actual
users for this. But it does make a nice complement to the unaligned
versions.

include/linux/byteorder/generic.h | 30 ++++++++++++++++++++++++++++++
1 files changed, 30 insertions(+), 0 deletions(-)

diff --git a/include/linux/byteorder/generic.h b/include/linux/byteorder/generic.h
index 0846e6b..38ff3e6 100644
--- a/include/linux/byteorder/generic.h
+++ b/include/linux/byteorder/generic.h
@@ -119,6 +119,36 @@
#define cpu_to_be16s __cpu_to_be16s
#define be16_to_cpus __be16_to_cpus

+static inline void put_le16(u16 val, void *ptr)
+{
+ *(__le16 *)ptr = cpu_to_le16(val);
+}
+
+static inline void put_le32(u32 val, void *ptr)
+{
+ *(__le32 *)ptr = cpu_to_le32(val);
+}
+
+static inline void put_le64(u64 val, void *ptr)
+{
+ *(__le64 *)ptr = cpu_to_le64(val);
+}
+
+static inline void put_be16(u16 val, void *ptr)
+{
+ *(__be16 *)ptr = cpu_to_be16(val);
+}
+
+static inline void put_be32(u32 val, void *ptr)
+{
+ *(__be32 *)ptr = cpu_to_be32(val);
+}
+
+static inline void put_be64(u64 val, void *ptr)
+{
+ *(__be64 *)ptr = cpu_to_be64(val);
+}
+
/*
* They have to be macros in order to do the constant folding
* correctly - if the argument passed into a inline function
--
1.5.5.1.570.g26b5e




\
 
 \ /
  Last update: 2008-05-16 20:13    [W:0.071 / U:0.200 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site