Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754963AbaLJCLf (ORCPT ); Tue, 9 Dec 2014 21:11:35 -0500 Received: from mx1.redhat.com ([209.132.183.28]:57632 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753559AbaLJCLd (ORCPT ); Tue, 9 Dec 2014 21:11:33 -0500 From: Paul Moore To: Richard Guy Briggs , linux-audit@redhat.com, linuxppc-dev@lists.ozlabs.org Cc: linux-kernel@vger.kernel.org, linux-api@vger.kernel.org, mpe@ellerman.id.au, anton@samba.org, sgrubb@redhat.com, eparis@parisplace.org, tonyj@suse.de Subject: Re: [PATCH V4] powerpc: add little endian flag to syscall_get_arch() Date: Tue, 09 Dec 2014 21:11:19 -0500 Message-ID: <1557787.lOBez6GG22@sifl> Organization: Red Hat User-Agent: KMail/4.14.3 (Linux/3.16.7-gentoo; KDE/4.14.3; x86_64; ; ) In-Reply-To: <24fcd2ea2c7633152e74a7a92abab1dd1782745d.1418157273.git.rgb@redhat.com> References: <24fcd2ea2c7633152e74a7a92abab1dd1782745d.1418157273.git.rgb@redhat.com> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tuesday, December 09, 2014 03:37:07 PM Richard Guy Briggs wrote: > Since both ppc and ppc64 have LE variants which are now reported by uname, > add that flag (__AUDIT_ARCH_LE) to syscall_get_arch() and add > AUDIT_ARCH_PPC64LE variant. > > Without this, perf trace and auditctl fail. > > Mainline kernel reports ppc64le (per a058801) but there is no matching > AUDIT_ARCH_PPC64LE. > > Since 32-bit PPC LE is not supported by audit, don't advertise it in > AUDIT_ARCH_PPC* variants. > > See: > https://www.redhat.com/archives/linux-audit/2014-August/msg00082.html > https://www.redhat.com/archives/linux-audit/2014-December/msg00004.html > > Signed-off-by: Richard Guy Briggs > --- > arch/powerpc/include/asm/syscall.h | 6 +++++- > include/uapi/linux/audit.h | 2 ++ > 2 files changed, 7 insertions(+), 1 deletions(-) The audit changes look fine to me, but as I mentioned earlier, this should go in via the ppc tree and not the audit tree. Acked-by: Paul Moore > diff --git a/arch/powerpc/include/asm/syscall.h > b/arch/powerpc/include/asm/syscall.h index 6fa2708..d1934e5 100644 > --- a/arch/powerpc/include/asm/syscall.h > +++ b/arch/powerpc/include/asm/syscall.h > @@ -90,6 +90,10 @@ static inline void syscall_set_arguments(struct > task_struct *task, > > static inline int syscall_get_arch(void) > { > - return is_32bit_task() ? AUDIT_ARCH_PPC : AUDIT_ARCH_PPC64; > + int arch = is_32bit_task() ? AUDIT_ARCH_PPC : AUDIT_ARCH_PPC64; > +#ifdef __LITTLE_ENDIAN__ > + arch |= __AUDIT_ARCH_LE; > +#endif > + return arch; > } > #endif /* _ASM_SYSCALL_H */ > diff --git a/include/uapi/linux/audit.h b/include/uapi/linux/audit.h > index 4d100c8..d82beec 100644 > --- a/include/uapi/linux/audit.h > +++ b/include/uapi/linux/audit.h > @@ -364,7 +364,9 @@ enum { > #define AUDIT_ARCH_PARISC (EM_PARISC) > #define AUDIT_ARCH_PARISC64 (EM_PARISC|__AUDIT_ARCH_64BIT) > #define AUDIT_ARCH_PPC (EM_PPC) > +/* do not define AUDIT_ARCH_PPCLE since it is not supported by audit */ > #define AUDIT_ARCH_PPC64 (EM_PPC64|__AUDIT_ARCH_64BIT) > +#define AUDIT_ARCH_PPC64LE (EM_PPC64|__AUDIT_ARCH_64BIT|__AUDIT_ARCH_LE) > #define AUDIT_ARCH_S390 (EM_S390) > #define AUDIT_ARCH_S390X (EM_S390|__AUDIT_ARCH_64BIT) > #define AUDIT_ARCH_SH (EM_SH) -- paul moore security and virtualization @ redhat -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/