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SubjectRe: [PATCH] arm64: compat: Provide definition for COMPAT_SIGMINSTKSZ
On Tue, Jul 30, 2019 at 10:25:47AM +0100, Will Deacon wrote:
> From: Will Deacon <will.deacon@arm.com>
>
> [ Upstream commit 24951465cbd279f60b1fdc2421b3694405bcff42 ]
>
> arch/arm/ defines a SIGMINSTKSZ of 2k, so we should use the same value
> for compat tasks.
>
> Cc: <stable@vger.kernel.org> # 4.9+
> Cc: Aurelien Jarno <aurelien@aurel32.net>
> Cc: Arnd Bergmann <arnd@arndb.de>
> Cc: Dominik Brodowski <linux@dominikbrodowski.net>
> Cc: "Eric W. Biederman" <ebiederm@xmission.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Al Viro <viro@zeniv.linux.org.uk>
> Cc: Oleg Nesterov <oleg@redhat.com>
> Reviewed-by: Dave Martin <Dave.Martin@arm.com>
> Reported-by: Steve McIntyre <steve.mcintyre@arm.com>
> Tested-by: Steve McIntyre <93sam@debian.org>
> Signed-off-by: Will Deacon <will.deacon@arm.com>
> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
> ---
>
> Aurelien points out that this didn't get selected for -stable despite its
> counterpart (22839869f21a ("signal: Introduce COMPAT_SIGMINSTKSZ for use
> in compat_sys_sigaltstack")) being backported to 4.9. Oops.

So this needs to go into 4.9.y, 4.14.y, and 4.19.y?

thanks,

greg k-h

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