Patch "powerpc/boot: Fix zImage TOC alignment" has been added to the 3.18-stable tree

This is a note to let you know that I've just added the patch titled

powerpc/boot: Fix zImage TOC alignment

to the 3.18-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:
powerpc-boot-fix-zimage-toc-alignment.patch
and it can be found in the queue-3.18 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Michael Ellerman <[email protected]>
Date: Tue, 7 Mar 2017 16:14:49 +1100
Subject: powerpc/boot: Fix zImage TOC alignment

From: Michael Ellerman <[email protected]>

commit 97ee351b50a49717543533cfb85b4bf9d88c9680 upstream.

Recent toolchains force the TOC to be 256 byte aligned. We need to enforce this alignment in the zImage linker script, otherwise pointers to our TOC variables (__toc_start) could be incorrect. If the actual start of the TOC and __toc_start don't have the same value we crash early in the zImage wrapper.

---
 arch/powerpc/boot/zImage.lds.S |    1 +
 1 file changed, 1 insertion(+)

@@ -68,6 +68,7 @@ SECTIONS
   }
 
 #ifdef CONFIG_PPC64_BOOT_WRAPPER
+  . = ALIGN(256);
   .got :
   {
     __toc_start = .;

Patches currently in stable-queue which might be from [email protected] are

queue-3.18/powerpc-mm-add-missing-global-tlb-invalidate-if-cxl-is-active.patch queue-3.18/powerpc-don-t-try-to-fix-up-misaligned-load-with-reservation-instructions.patch queue-3.18/powerpc-boot-fix-zimage-toc-alignment.patch