From: Mark Rutland <mark.rutland@arm.com> To: Will Deacon <will@kernel.org> Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Sami Tolvanen <samitolvanen@google.com>, Kees Cook <keescook@chromium.org>, Catalin Marinas <catalin.marinas@arm.com>, Mark Rutland <mark.rutland@am.com>, Jann Horn <jannh@google.com>, Ard Biesheuvel <ardb@kernel.org>, Peter Zijlstra <peterz@infradead.org>, kernel-team@android.com Subject: Re: [PATCH 5/6] scs: Remove references to asm/scs.h from core code Date: Mon, 18 May 2020 13:15:58 +0100 [thread overview] Message-ID: <20200518121558.GF1957@C02TD0UTHF1T.local> (raw) In-Reply-To: <20200515172756.27185-6-will@kernel.org> On Fri, May 15, 2020 at 06:27:55PM +0100, Will Deacon wrote: > asm/scs.h is no longer needed by the core code, so remove a redundant > header inclusion and update the stale Kconfig text. > > Signed-off-by: Will Deacon <will@kernel.org> With the corruption checks moved out of arch code this looks sound to me, so modulo my comments on the prior patch, assuming we factor that out: Reviewed-by: Mark Rutland <mark.rutland@arm.com> Mark. > --- > arch/Kconfig | 4 ++-- > kernel/scs.c | 1 - > 2 files changed, 2 insertions(+), 3 deletions(-) > > diff --git a/arch/Kconfig b/arch/Kconfig > index 45dfca9a98d3..2e6f843d87c4 100644 > --- a/arch/Kconfig > +++ b/arch/Kconfig > @@ -537,8 +537,8 @@ config ARCH_SUPPORTS_SHADOW_CALL_STACK > bool > help > An architecture should select this if it supports Clang's Shadow > - Call Stack, has asm/scs.h, and implements runtime support for shadow > - stack switching. > + Call Stack and implements runtime support for shadow stack > + switching. > > config SHADOW_CALL_STACK > bool "Clang Shadow Call Stack" > diff --git a/kernel/scs.c b/kernel/scs.c > index faf0ecd7b893..222a7a9ad543 100644 > --- a/kernel/scs.c > +++ b/kernel/scs.c > @@ -10,7 +10,6 @@ > #include <linux/scs.h> > #include <linux/slab.h> > #include <linux/vmstat.h> > -#include <asm/scs.h> > > static struct kmem_cache *scs_cache; > > -- > 2.26.2.761.g0e0b3e54be-goog >
WARNING: multiple messages have this Message-ID (diff)
From: Mark Rutland <mark.rutland@arm.com> To: Will Deacon <will@kernel.org> Cc: Kees Cook <keescook@chromium.org>, Jann Horn <jannh@google.com>, Peter Zijlstra <peterz@infradead.org>, Catalin Marinas <catalin.marinas@arm.com>, linux-kernel@vger.kernel.org, Mark Rutland <mark.rutland@am.com>, Sami Tolvanen <samitolvanen@google.com>, kernel-team@android.com, Ard Biesheuvel <ardb@kernel.org>, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH 5/6] scs: Remove references to asm/scs.h from core code Date: Mon, 18 May 2020 13:15:58 +0100 [thread overview] Message-ID: <20200518121558.GF1957@C02TD0UTHF1T.local> (raw) In-Reply-To: <20200515172756.27185-6-will@kernel.org> On Fri, May 15, 2020 at 06:27:55PM +0100, Will Deacon wrote: > asm/scs.h is no longer needed by the core code, so remove a redundant > header inclusion and update the stale Kconfig text. > > Signed-off-by: Will Deacon <will@kernel.org> With the corruption checks moved out of arch code this looks sound to me, so modulo my comments on the prior patch, assuming we factor that out: Reviewed-by: Mark Rutland <mark.rutland@arm.com> Mark. > --- > arch/Kconfig | 4 ++-- > kernel/scs.c | 1 - > 2 files changed, 2 insertions(+), 3 deletions(-) > > diff --git a/arch/Kconfig b/arch/Kconfig > index 45dfca9a98d3..2e6f843d87c4 100644 > --- a/arch/Kconfig > +++ b/arch/Kconfig > @@ -537,8 +537,8 @@ config ARCH_SUPPORTS_SHADOW_CALL_STACK > bool > help > An architecture should select this if it supports Clang's Shadow > - Call Stack, has asm/scs.h, and implements runtime support for shadow > - stack switching. > + Call Stack and implements runtime support for shadow stack > + switching. > > config SHADOW_CALL_STACK > bool "Clang Shadow Call Stack" > diff --git a/kernel/scs.c b/kernel/scs.c > index faf0ecd7b893..222a7a9ad543 100644 > --- a/kernel/scs.c > +++ b/kernel/scs.c > @@ -10,7 +10,6 @@ > #include <linux/scs.h> > #include <linux/slab.h> > #include <linux/vmstat.h> > -#include <asm/scs.h> > > static struct kmem_cache *scs_cache; > > -- > 2.26.2.761.g0e0b3e54be-goog > _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-05-18 12:16 UTC|newest] Thread overview: 54+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-15 17:27 [PATCH 0/6] Clean up Shadow Call Stack patches for 5.8 Will Deacon 2020-05-15 17:27 ` Will Deacon 2020-05-15 17:27 ` [PATCH 1/6] arm64: scs: Store absolute SCS stack pointer value in thread_info Will Deacon 2020-05-15 17:27 ` Will Deacon 2020-05-18 11:37 ` Mark Rutland 2020-05-18 11:37 ` Mark Rutland 2020-05-18 13:37 ` Will Deacon 2020-05-18 13:37 ` Will Deacon 2020-05-15 17:27 ` [PATCH 2/6] scs: Move accounting into alloc/free functions Will Deacon 2020-05-15 17:27 ` Will Deacon 2020-05-18 11:38 ` Mark Rutland 2020-05-18 11:38 ` Mark Rutland 2020-05-18 13:39 ` Will Deacon 2020-05-18 13:39 ` Will Deacon 2020-05-15 17:27 ` [PATCH 3/6] arm64: scs: Use 'scs_sp' register alias for x18 Will Deacon 2020-05-15 17:27 ` Will Deacon 2020-05-18 11:55 ` Mark Rutland 2020-05-18 11:55 ` Mark Rutland 2020-05-18 13:03 ` Will Deacon 2020-05-18 13:03 ` Will Deacon 2020-05-18 13:13 ` Mark Rutland 2020-05-18 13:13 ` Mark Rutland 2020-05-15 17:27 ` [PATCH 4/6] scs: Move scs_overflow_check() out of architecture code Will Deacon 2020-05-15 17:27 ` Will Deacon 2020-05-18 12:12 ` Mark Rutland 2020-05-18 12:12 ` Mark Rutland 2020-05-18 13:23 ` Will Deacon 2020-05-18 13:23 ` Will Deacon 2020-05-18 13:32 ` Mark Rutland 2020-05-18 13:32 ` Mark Rutland 2020-05-18 15:31 ` Kees Cook 2020-05-18 15:31 ` Kees Cook 2020-05-18 16:44 ` Will Deacon 2020-05-18 16:44 ` Will Deacon 2020-05-15 17:27 ` [PATCH 5/6] scs: Remove references to asm/scs.h from core code Will Deacon 2020-05-15 17:27 ` Will Deacon 2020-05-18 12:15 ` Mark Rutland [this message] 2020-05-18 12:15 ` Mark Rutland 2020-05-15 17:27 ` [PATCH 6/6] scs: Move DEFINE_SCS macro into " Will Deacon 2020-05-15 17:27 ` Will Deacon 2020-05-18 12:14 ` Mark Rutland 2020-05-18 12:14 ` Mark Rutland 2020-05-18 13:26 ` Will Deacon 2020-05-18 13:26 ` Will Deacon 2020-05-18 13:37 ` Mark Rutland 2020-05-18 13:37 ` Mark Rutland 2020-05-15 20:42 ` [PATCH 0/6] Clean up Shadow Call Stack patches for 5.8 Sami Tolvanen 2020-05-15 20:42 ` Sami Tolvanen 2020-05-18 13:52 ` Will Deacon 2020-05-18 13:52 ` Will Deacon 2020-05-18 15:43 ` Sami Tolvanen 2020-05-18 15:43 ` Sami Tolvanen 2020-05-18 16:49 ` Will Deacon 2020-05-18 16:49 ` Will Deacon
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