* Patch "tile: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO" has been added to the 4.7-stable tree
@ 2016-10-05 13:10 gregkh
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From: gregkh @ 2016-10-05 13:10 UTC (permalink / raw)
To: james.hogan, cmetcalf, gregkh; +Cc: stable, stable-commits
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 4.7-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-4.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.
>From cdf8b4633075f2171d440d2e37c9c2609019a81a Mon Sep 17 00:00:00 2001
From: James Hogan <james.hogan@imgtec.com>
Date: Mon, 25 Jul 2016 16:59:54 +0100
Subject: tile: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO
From: James Hogan <james.hogan@imgtec.com>
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.
Fixes: 4a556f4f56da ("tile: implement gettimeofday() via vDSO")
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Cc: Chris Metcalf <cmetcalf@mellanox.com>
Signed-off-by: Chris Metcalf <cmetcalf@mellanox.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
arch/tile/include/asm/elf.h | 1 +
arch/tile/include/uapi/asm/auxvec.h | 2 ++
2 files changed, 3 insertions(+)
--- a/arch/tile/include/asm/elf.h
+++ b/arch/tile/include/asm/elf.h
@@ -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); \
--- a/arch/tile/include/uapi/asm/auxvec.h
+++ b/arch/tile/include/uapi/asm/auxvec.h
@@ -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 james.hogan@imgtec.com are
queue-4.7/tile-define-at_vector_size_arch-for-arch_dlinfo.patch
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2016-10-05 13:10 Patch "tile: Define AT_VECTOR_SIZE_ARCH for ARCH_DLINFO" has been added to the 4.7-stable tree gregkh
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