From: Christoffer Dall <cdall@linaro.org>
To: Marc Zyngier <marc.zyngier@arm.com>
Cc: kvm@vger.kernel.org, Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
linux-arm-kernel@lists.infradead.org,
kvmarm@lists.cs.columbia.edu
Subject: Re: [PATCH v4 03/19] arm64: asm-offsets: Remove potential circular dependency
Date: Mon, 15 Jan 2018 09:34:49 +0100 [thread overview]
Message-ID: <20180115083449.GD21403@cbox> (raw)
In-Reply-To: <20180104184334.16571-4-marc.zyngier@arm.com>
On Thu, Jan 04, 2018 at 06:43:18PM +0000, Marc Zyngier wrote:
> So far, we've been lucky enough that none of the include files
> that asm-offsets.c requires include asm-offsets.h. This is
> about to change, and would introduce a nasty circular dependency...
>
> Let's now guard the inclusion of asm-offsets.h so that it never
> gets pulled from asm-offsets.c. The same issue exists between
> bounce.c and include/generated/bounds.h, and is worked around
> by using the existing guard symbol.
>
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
> ---
> arch/arm64/include/asm/asm-offsets.h | 2 ++
> arch/arm64/kernel/asm-offsets.c | 2 ++
> 2 files changed, 4 insertions(+)
>
> diff --git a/arch/arm64/include/asm/asm-offsets.h b/arch/arm64/include/asm/asm-offsets.h
> index d370ee36a182..7d6531a81eb3 100644
> --- a/arch/arm64/include/asm/asm-offsets.h
> +++ b/arch/arm64/include/asm/asm-offsets.h
> @@ -1 +1,3 @@
> +#if !defined(__GENERATING_ASM_OFFSETS_H) && !defined(__GENERATING_BOUNDS_H)
I don't understand why we need to check __GENERATING_BOUNDS_H here?
What is the interaction between asm-offsets and bounds?
Thanks,
-Christoffer
WARNING: multiple messages have this Message-ID (diff)
From: cdall@linaro.org (Christoffer Dall)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 03/19] arm64: asm-offsets: Remove potential circular dependency
Date: Mon, 15 Jan 2018 09:34:49 +0100 [thread overview]
Message-ID: <20180115083449.GD21403@cbox> (raw)
In-Reply-To: <20180104184334.16571-4-marc.zyngier@arm.com>
On Thu, Jan 04, 2018 at 06:43:18PM +0000, Marc Zyngier wrote:
> So far, we've been lucky enough that none of the include files
> that asm-offsets.c requires include asm-offsets.h. This is
> about to change, and would introduce a nasty circular dependency...
>
> Let's now guard the inclusion of asm-offsets.h so that it never
> gets pulled from asm-offsets.c. The same issue exists between
> bounce.c and include/generated/bounds.h, and is worked around
> by using the existing guard symbol.
>
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
> ---
> arch/arm64/include/asm/asm-offsets.h | 2 ++
> arch/arm64/kernel/asm-offsets.c | 2 ++
> 2 files changed, 4 insertions(+)
>
> diff --git a/arch/arm64/include/asm/asm-offsets.h b/arch/arm64/include/asm/asm-offsets.h
> index d370ee36a182..7d6531a81eb3 100644
> --- a/arch/arm64/include/asm/asm-offsets.h
> +++ b/arch/arm64/include/asm/asm-offsets.h
> @@ -1 +1,3 @@
> +#if !defined(__GENERATING_ASM_OFFSETS_H) && !defined(__GENERATING_BOUNDS_H)
I don't understand why we need to check __GENERATING_BOUNDS_H here?
What is the interaction between asm-offsets and bounds?
Thanks,
-Christoffer
next prev parent reply other threads:[~2018-01-15 8:29 UTC|newest]
Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-04 18:43 [PATCH v4 00/19] KVM/arm64: Randomise EL2 mappings Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-04 18:43 ` [PATCH v4 01/19] arm64: asm-offsets: Avoid clashing DMA definitions Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-04 18:43 ` [PATCH v4 02/19] arm64: asm-offsets: Remove unused definitions Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-04 18:43 ` [PATCH v4 03/19] arm64: asm-offsets: Remove potential circular dependency Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-15 8:34 ` Christoffer Dall [this message]
2018-01-15 8:34 ` Christoffer Dall
2018-01-15 8:42 ` Marc Zyngier
2018-01-15 8:42 ` Marc Zyngier
2018-01-15 9:46 ` Christoffer Dall
2018-01-15 9:46 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 04/19] arm64: alternatives: Enforce alignment of struct alt_instr Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-15 9:11 ` Christoffer Dall
2018-01-15 9:11 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 05/19] arm64: alternatives: Add dynamic patching feature Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-15 11:26 ` Christoffer Dall
2018-01-15 11:26 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 06/19] arm64: insn: Add N immediate encoding Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-15 11:26 ` Christoffer Dall
2018-01-15 11:26 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 07/19] arm64: insn: Add encoder for bitwise operations using literals Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-15 11:26 ` Christoffer Dall
2018-01-15 11:26 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 08/19] arm64: KVM: Dynamically patch the kernel/hyp VA mask Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-15 11:47 ` Christoffer Dall
2018-01-15 11:47 ` Christoffer Dall
2018-02-15 13:11 ` Marc Zyngier
2018-02-15 13:11 ` Marc Zyngier
2018-02-16 9:02 ` Christoffer Dall
2018-02-16 9:02 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 09/19] arm64: cpufeatures: Drop the ARM64_HYP_OFFSET_LOW feature flag Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-15 11:48 ` Christoffer Dall
2018-01-15 11:48 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 10/19] KVM: arm/arm64: Do not use kern_hyp_va() with kvm_vgic_global_state Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-15 15:36 ` Christoffer Dall
2018-01-15 15:36 ` Christoffer Dall
2018-02-15 13:22 ` Marc Zyngier
2018-02-15 13:22 ` Marc Zyngier
2018-02-16 9:05 ` Christoffer Dall
2018-02-16 9:05 ` Christoffer Dall
2018-02-16 9:33 ` Marc Zyngier
2018-02-16 9:33 ` Marc Zyngier
2018-02-19 14:39 ` Christoffer Dall
2018-02-19 14:39 ` Christoffer Dall
2018-02-20 11:40 ` Marc Zyngier
2018-02-20 11:40 ` Marc Zyngier
2018-01-04 18:43 ` [PATCH v4 11/19] KVM: arm/arm64: Demote HYP VA range display to being a debug feature Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-15 15:54 ` Christoffer Dall
2018-01-15 15:54 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 12/19] KVM: arm/arm64: Move ioremap calls to create_hyp_io_mappings Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-15 18:07 ` Christoffer Dall
2018-01-15 18:07 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 13/19] KVM: arm/arm64: Keep GICv2 HYP VAs in kvm_vgic_global_state Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-18 14:39 ` Christoffer Dall
2018-01-18 14:39 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 14/19] KVM: arm/arm64: Move HYP IO VAs to the "idmap" range Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-18 14:39 ` Christoffer Dall
2018-01-18 14:39 ` Christoffer Dall
2018-02-15 13:52 ` Marc Zyngier
2018-02-15 13:52 ` Marc Zyngier
2018-02-16 9:25 ` Christoffer Dall
2018-02-16 9:25 ` Christoffer Dall
2018-02-16 15:20 ` Marc Zyngier
2018-02-16 15:20 ` Marc Zyngier
2018-01-04 18:43 ` [PATCH v4 15/19] arm64; insn: Add encoder for the EXTR instruction Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-18 20:27 ` Christoffer Dall
2018-01-18 20:27 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 16/19] arm64: insn: Allow ADD/SUB (immediate) with LSL #12 Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-18 20:28 ` Christoffer Dall
2018-01-18 20:28 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 17/19] arm64: KVM: Dynamically compute the HYP VA mask Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-18 20:28 ` Christoffer Dall
2018-01-18 20:28 ` Christoffer Dall
2018-02-15 13:58 ` Marc Zyngier
2018-02-15 13:58 ` Marc Zyngier
2018-01-04 18:43 ` [PATCH v4 18/19] arm64: KVM: Introduce EL2 VA randomisation Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-18 20:28 ` Christoffer Dall
2018-01-18 20:28 ` Christoffer Dall
2018-02-15 15:32 ` Marc Zyngier
2018-02-15 15:32 ` Marc Zyngier
2018-02-16 9:33 ` Christoffer Dall
2018-02-16 9:33 ` Christoffer Dall
2018-01-04 18:43 ` [PATCH v4 19/19] arm64: Update the KVM memory map documentation Marc Zyngier
2018-01-04 18:43 ` Marc Zyngier
2018-01-18 20:28 ` Christoffer Dall
2018-01-18 20:28 ` Christoffer Dall
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20180115083449.GD21403@cbox \
--to=cdall@linaro.org \
--cc=catalin.marinas@arm.com \
--cc=kvm@vger.kernel.org \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=marc.zyngier@arm.com \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.