| Message ID | 1438893424-16450-1-git-send-email-kamal@canonical.com |
|---|---|
| State | New |
| Headers | show |
diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index 7ed0d4e..f9c21cf 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -195,7 +195,7 @@ asmlinkage void execve_tail(void) { current->thread.fp_regs.fpc = 0; if (MACHINE_HAS_IEEE) - asm volatile("sfpc %0,%0" : : "d" (0)); + asm volatile("sfpc %0" : : "d" (0)); } /*
This is a note to let you know that I have just added a patch titled s390/process: fix sfpc inline assembly to the linux-3.13.y-queue branch of the 3.13.y-ckt extended stable tree which can be found at: http://kernel.ubuntu.com/git/ubuntu/linux.git/log/?h=linux-3.13.y-queue This patch is scheduled to be released in version 3.13.11-ckt25. If you, or anyone else, feels it should not be added to this tree, please reply to this email. For more information about the 3.13.y-ckt tree, see https://wiki.ubuntu.com/Kernel/Dev/ExtendedStable Thanks. -Kamal ------ From f4ceff8002707fc8b7a9a1e48fdf47f38f58fca4 Mon Sep 17 00:00:00 2001 From: Heiko Carstens <heiko.carstens@de.ibm.com> Date: Mon, 6 Jul 2015 15:02:37 +0200 Subject: s390/process: fix sfpc inline assembly commit e47994dd44bcb4a77b4152bd0eada585934703c0 upstream. The sfpc inline assembly within execve_tail() may incorrectly set bits 28-31 of the sfpc instruction to a value which is not zero. These bits however are currently unused and therefore should be zero so we won't get surprised if these bits will be used in the future. Therefore remove the second operand from the inline assembly. Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Kamal Mostafa <kamal@canonical.com> --- arch/s390/kernel/process.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) -- 1.9.1