Patch "tile: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO" has been added to the 4.4-stable tree

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

tile: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO

to the 4.4-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:
tile-define-at_vector_size_arch-for-arch_dlinfo.patch
and it can be found in the queue-4.4 subdirectory.

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

From: James Hogan <[email protected]>
Date: Mon, 25 Jul 2016 16:59:54 +0100
Subject: tile: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO

From: James Hogan <[email protected]>

commit cdf8b4633075f2171d440d2e37c9c2609019a81a upstream.

AT_VECTOR_SIZE_ARCH should be defined with the maximum number of NEW_AUX_ENT entries that ARCH_DLINFO can contain, but it wasn't defined for tile at all even though ARCH_DLINFO will contain one NEW_AUX_ENT for the VDSO address.

This shouldn't be a problem as AT_VECTOR_SIZE_BASE includes space for AT_BASE_PLATFORM which tile doesn't use, but lets define it now and add the comment above ARCH_DLINFO as found in several other architectures to remind future modifiers of ARCH_DLINFO to keep AT_VECTOR_SIZE_ARCH up to date.

---
 arch/tile/include/asm/elf.h         |    1 +
 arch/tile/include/uapi/asm/auxvec.h |    2 ++
 2 files changed, 3 insertions(+)

@@ -129,6 +129,7 @@ extern int dump_task_regs(struct task_st
 struct linux_binprm;
 extern int arch_setup_additional_pages(struct linux_binprm *bprm,
 				       int executable_stack);
+/* update AT_VECTOR_SIZE_ARCH if the number of NEW_AUX_ENT entries changes */
 #define ARCH_DLINFO \
 do { \
 	NEW_AUX_ENT(AT_SYSINFO_EHDR, VDSO_BASE); \

@@ -18,4 +18,6 @@
 /* The vDSO location. */
 #define AT_SYSINFO_EHDR         33
 
+#define AT_VECTOR_SIZE_ARCH 1 /* entries in ARCH_DLINFO */
+
 #endif /* _ASM_TILE_AUXVEC_H */

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

queue-4.4/tile-define-at_vector_size_arch-for-arch_dlinfo.patch