This is a note to let you know that I've just added the patch titled
sparc64: Fix constraints on swab helpers.
to the 3.10-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
sparc64-fix-constraints-on-swab-helpers.patch
and it can be found in the queue-3.10 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 5a2b59d3993e8ca4f7788a48a23e5cb303f26954 Mon Sep 17 00:00:00 2001
From: "David S. Miller" <davem@xxxxxxxxxxxxx>
Date: Sun, 16 Nov 2014 13:19:32 -0800
Subject: sparc64: Fix constraints on swab helpers.
[ Upstream commit 5a2b59d3993e8ca4f7788a48a23e5cb303f26954 ]
We are reading the memory location, so we have to have a memory
constraint in there purely for the sake of showing the data flow
to the compiler.
Reported-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/sparc/include/uapi/asm/swab.h | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)
--- a/arch/sparc/include/uapi/asm/swab.h
+++ b/arch/sparc/include/uapi/asm/swab.h
@@ -9,9 +9,9 @@ static inline __u16 __arch_swab16p(const
{
__u16 ret;
- __asm__ __volatile__ ("lduha [%1] %2, %0"
+ __asm__ __volatile__ ("lduha [%2] %3, %0"
: "=r" (ret)
- : "r" (addr), "i" (ASI_PL));
+ : "m" (*addr), "r" (addr), "i" (ASI_PL));
return ret;
}
#define __arch_swab16p __arch_swab16p
@@ -20,9 +20,9 @@ static inline __u32 __arch_swab32p(const
{
__u32 ret;
- __asm__ __volatile__ ("lduwa [%1] %2, %0"
+ __asm__ __volatile__ ("lduwa [%2] %3, %0"
: "=r" (ret)
- : "r" (addr), "i" (ASI_PL));
+ : "m" (*addr), "r" (addr), "i" (ASI_PL));
return ret;
}
#define __arch_swab32p __arch_swab32p
@@ -31,9 +31,9 @@ static inline __u64 __arch_swab64p(const
{
__u64 ret;
- __asm__ __volatile__ ("ldxa [%1] %2, %0"
+ __asm__ __volatile__ ("ldxa [%2] %3, %0"
: "=r" (ret)
- : "r" (addr), "i" (ASI_PL));
+ : "m" (*addr), "r" (addr), "i" (ASI_PL));
return ret;
}
#define __arch_swab64p __arch_swab64p
Patches currently in stable-queue which might be from davem@xxxxxxxxxxxxx are
queue-3.10/pptp-fix-stack-info-leak-in-pptp_getname.patch
queue-3.10/inetdevice-fixed-signed-integer-overflow.patch
queue-3.10/ipx-fix-locking-regression-in-ipx_sendmsg-and-ipx_recvmsg.patch
queue-3.10/sparc64-fix-constraints-on-swab-helpers.patch
queue-3.10/ieee802154-fix-error-handling-in-ieee802154fake_probe.patch
queue-3.10/ipv4-fix-incorrect-error-code-when-adding-an-unreachable-route.patch
queue-3.10/qmi_wwan-add-support-for-hp-lt4112-lte-hspa-gobi-4g-modem.patch
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