Re: [PATCH v8 01/12] bswap: add 64 bit endianness helper get_be64
From: Martin Ågren <hidden>
Date: 2017-09-22 23:37:32
Subsystem:
the rest · Maintainer:
Linus Torvalds
On 22 September 2017 at 18:35, Ben Peart [off-list ref] wrote:
Add a new get_be64 macro to enable 64 bit endian conversions on memory that may or may not be aligned.
I needed this to compile and pass the tests with NO_UNALIGNED_LOADS. Martin
diff --git a/compat/bswap.h b/compat/bswap.h
index 6b22c4621..9dc79bdf5 100644
--- a/compat/bswap.h
+++ b/compat/bswap.h@@ -183,8 +183,8 @@ static inline uint32_t get_be32(const void *ptr) static inline uint64_t get_be64(const void *ptr) { const unsigned char *p = ptr; - return (uint64_t)get_be32(p[0]) << 32 | - (uint64_t)get_be32(p[4]) << 0; + return (uint64_t)get_be32(p + 0) << 32 | + (uint64_t)get_be32(p + 4) << 0; } static inline void put_be32(void *ptr, uint32_t value)
--
2.14.1.727.g9ddaf86