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Message-Id: <20150527183621.785960B4@viggo.jf.intel.com> Date: Wed, 27 May 2015 11:36:21 -0700 From: Dave Hansen <dave@...1.net> To: linux-kernel@...r.kernel.org Cc: x86@...nel.org, tglx@...utronix.de, Dave Hansen <dave@...1.net>, dave.hansen@...ux.intel.com Subject: [PATCH 19/19] x86, mpx: allow mixed binaries again From: Dave Hansen <dave.hansen@...ux.intel.com> We explicitly disable allowing 32-bit binaries to enable MPX on 64-bit kernels. Re-allow that. Signed-off-by: Dave Hansen <dave.hansen@...ux.intel.com> Reviewed-by: Thomas Gleixner <tglx@...utronix.de> --- b/arch/x86/mm/mpx.c | 6 ------ 1 file changed, 6 deletions(-) diff -puN arch/x86/mm/mpx.c~x86-mpx-allow-mixed-binaries-again arch/x86/mm/mpx.c --- a/arch/x86/mm/mpx.c~x86-mpx-allow-mixed-binaries-again 2015-05-27 09:32:21.991781640 -0700 +++ b/arch/x86/mm/mpx.c 2015-05-27 09:32:21.995781821 -0700 @@ -367,12 +367,6 @@ static __user void *mpx_get_bounds_dir(v return MPX_INVALID_BOUNDS_DIR; /* - * 32-bit binaries on 64-bit kernels are currently - * unsupported. - */ - if (IS_ENABLED(CONFIG_X86_64) && test_thread_flag(TIF_IA32)) - return MPX_INVALID_BOUNDS_DIR; - /* * The bounds directory pointer is stored in a register * only accessible if we first do an xsave. */ _ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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