This is a note to let you know that I've just added the patch titled
x86/kbuild: enable modversions for symbols exported from asm
to the 4.4-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: x86-kbuild-enable-modversions-for-symbols-exported-from-asm.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 stable@vger.kernel.org know about it.
From 334bb773876403eae3457d81be0b8ea70f8e4ccc Mon Sep 17 00:00:00 2001
From: Adam Borowski kilobyte@angband.pl Date: Sun, 11 Dec 2016 02:09:18 +0100 Subject: x86/kbuild: enable modversions for symbols exported from asm
From: Adam Borowski kilobyte@angband.pl
commit 334bb773876403eae3457d81be0b8ea70f8e4ccc upstream.
Commit 4efca4ed ("kbuild: modversions for EXPORT_SYMBOL() for asm") adds modversion support for symbols exported from asm files. Architectures must include C-style declarations for those symbols in asm/asm-prototypes.h in order for them to be versioned.
Add these declarations for x86, and an architecture-independent file that can be used for common symbols.
With f27c2f6 reverting 8ab2ae6 ("default exported asm symbols to zero") we produce a scary warning on x86, this commit fixes that.
Signed-off-by: Adam Borowski kilobyte@angband.pl Tested-by: Kalle Valo kvalo@codeaurora.org Acked-by: Nicholas Piggin npiggin@gmail.com Tested-by: Peter Wu peter@lekensteyn.nl Tested-by: Oliver Hartkopp socketcan@hartkopp.net Signed-off-by: Michal Marek mmarek@suse.com Signed-off-by: Razvan Ghitulete rga@amazon.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- arch/x86/include/asm/asm-prototypes.h | 16 ++++++++++++++++ include/asm-generic/asm-prototypes.h | 7 +++++++ 2 files changed, 23 insertions(+)
--- /dev/null +++ b/arch/x86/include/asm/asm-prototypes.h @@ -0,0 +1,16 @@ +#include <asm/ftrace.h> +#include <asm/uaccess.h> +#include <asm/string.h> +#include <asm/page.h> +#include <asm/checksum.h> + +#include <asm-generic/asm-prototypes.h> + +#include <asm/page.h> +#include <asm/pgtable.h> +#include <asm/special_insns.h> +#include <asm/preempt.h> + +#ifndef CONFIG_X86_CMPXCHG64 +extern void cmpxchg8b_emu(void); +#endif --- /dev/null +++ b/include/asm-generic/asm-prototypes.h @@ -0,0 +1,7 @@ +#include <linux/bitops.h> +extern void *__memset(void *, int, __kernel_size_t); +extern void *__memcpy(void *, const void *, __kernel_size_t); +extern void *__memmove(void *, const void *, __kernel_size_t); +extern void *memset(void *, int, __kernel_size_t); +extern void *memcpy(void *, const void *, __kernel_size_t); +extern void *memmove(void *, const void *, __kernel_size_t);
Patches currently in stable-queue which might be from kilobyte@angband.pl are
queue-4.4/x86-kbuild-enable-modversions-for-symbols-exported-from-asm.patch