* [PATCH] powerpc: Make unaligned accesses endian-safe for powerpc
@ 2013-12-12 15:45 Rajesh B Prathipati
0 siblings, 0 replies; only message in thread
From: Rajesh B Prathipati @ 2013-12-12 15:45 UTC (permalink / raw)
To: benh, paulus, linuxppc-dev, linux-kernel, anton
From: Rajesh B Prathipati <rprathip@linux.vnet.ibm.com>
The generic put_unaligned/get_unaligned macros were made endian-safe by
calling the appropriate endian dependent macros based on the endian type
of the powerpc processor.
Signed-off-by: Rajesh B Prathipati <rprathip@linux.vnet.ibm.com>
---
This patch applies to linux kernel version 3.12. This patch has been
tested and it fixes the problem with linux 3.12 USB stack.
--- linux/arch/powerpc/include/asm/unaligned.h.orig 2013-12-12
00:07:05.329073544 -0200
+++ linux/arch/powerpc/include/asm/unaligned.h 2013-12-11
23:56:52.918630238 -0200
@@ -4,13 +4,18 @@
#ifdef __KERNEL__
/*
- * The PowerPC can do unaligned accesses itself in big endian mode.
+ * The PowerPC can do unaligned accesses itself based on its endian mode.
*/
#include <linux/unaligned/access_ok.h>
#include <linux/unaligned/generic.h>
+#ifdef __LITTLE_ENDIAN__
+#define get_unaligned __get_unaligned_le
+#define put_unaligned __put_unaligned_le
+#else
#define get_unaligned __get_unaligned_be
#define put_unaligned __put_unaligned_be
+#endif
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_UNALIGNED_H */
^ permalink raw reply [flat|nested] only message in thread
only message in thread, other threads:[~2013-12-12 15:46 UTC | newest]
Thread overview: (only message) (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-12-12 15:45 [PATCH] powerpc: Make unaligned accesses endian-safe for powerpc Rajesh B Prathipati
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox