From: Matt Fleming <matt-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
To: Mark Rutland <mark.rutland-5wv7dgnIgG8@public.gmane.org>
Cc: Ard Biesheuvel
<ard.biesheuvel-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Robin Murphy <robin.murphy-5wv7dgnIgG8@public.gmane.org>,
"linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-efi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Russell King - ARM Linux
<linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
Catalin Marinas <catalin.marinas-5wv7dgnIgG8@public.gmane.org>,
Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>,
"linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org"
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
Leif Lindholm
<leif.lindholm-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
"mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org"
<mingo-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org>,
"hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org"
<hpa-YMNOUZJC4hwAvxtiuMwx3w@public.gmane.org>,
"tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org"
<tglx-hfZtesqFncYOwBW4kG4KsQ@public.gmane.org>,
"linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org"
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCHv3 1/5] efi/runtime-wrappers: detect FW irq flag corruption
Date: Mon, 25 Apr 2016 16:59:22 +0100 [thread overview]
Message-ID: <20160425155922.GC2829@codeblueprint.co.uk> (raw)
In-Reply-To: <20160425142735.GA14974@leverpostej>
On Mon, 25 Apr, at 03:27:35PM, Mark Rutland wrote:
>
> I have no strong preference so long as the code is correct.
>
> Another option is to get rid of the bool entirely:
>
> flags ^= cur_flags;
> if (!WARN_ON(flags & ARCH_EFI_IRQ_FLAGS_MASK))
> return;
OK, let's do the following because we need flags to be preserved for
printing,
---
unsigned long cur_flags, mismatch;
local_save_flags(cur_flags);
mismatch = flags ^ cur_flags;
if (!WARN_ON_ONCE(mismatch & ARCH_EFI_IRQ_FLAGS_MASK))
return;
WARNING: multiple messages have this Message-ID (diff)
From: matt@codeblueprint.co.uk (Matt Fleming)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCHv3 1/5] efi/runtime-wrappers: detect FW irq flag corruption
Date: Mon, 25 Apr 2016 16:59:22 +0100 [thread overview]
Message-ID: <20160425155922.GC2829@codeblueprint.co.uk> (raw)
In-Reply-To: <20160425142735.GA14974@leverpostej>
On Mon, 25 Apr, at 03:27:35PM, Mark Rutland wrote:
>
> I have no strong preference so long as the code is correct.
>
> Another option is to get rid of the bool entirely:
>
> flags ^= cur_flags;
> if (!WARN_ON(flags & ARCH_EFI_IRQ_FLAGS_MASK))
> return;
OK, let's do the following because we need flags to be preserved for
printing,
---
unsigned long cur_flags, mismatch;
local_save_flags(cur_flags);
mismatch = flags ^ cur_flags;
if (!WARN_ON_ONCE(mismatch & ARCH_EFI_IRQ_FLAGS_MASK))
return;
WARNING: multiple messages have this Message-ID (diff)
From: Matt Fleming <matt@codeblueprint.co.uk>
To: Mark Rutland <mark.rutland@arm.com>
Cc: Ard Biesheuvel <ard.biesheuvel@linaro.org>,
Robin Murphy <robin.murphy@arm.com>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
Russell King - ARM Linux <linux@arm.linux.org.uk>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Leif Lindholm <leif.lindholm@linaro.org>,
"mingo@redhat.com" <mingo@redhat.com>,
"hpa@zytor.com" <hpa@zytor.com>,
"tglx@linutronix.de" <tglx@linutronix.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCHv3 1/5] efi/runtime-wrappers: detect FW irq flag corruption
Date: Mon, 25 Apr 2016 16:59:22 +0100 [thread overview]
Message-ID: <20160425155922.GC2829@codeblueprint.co.uk> (raw)
In-Reply-To: <20160425142735.GA14974@leverpostej>
On Mon, 25 Apr, at 03:27:35PM, Mark Rutland wrote:
>
> I have no strong preference so long as the code is correct.
>
> Another option is to get rid of the bool entirely:
>
> flags ^= cur_flags;
> if (!WARN_ON(flags & ARCH_EFI_IRQ_FLAGS_MASK))
> return;
OK, let's do the following because we need flags to be preserved for
printing,
---
unsigned long cur_flags, mismatch;
local_save_flags(cur_flags);
mismatch = flags ^ cur_flags;
if (!WARN_ON_ONCE(mismatch & ARCH_EFI_IRQ_FLAGS_MASK))
return;
next prev parent reply other threads:[~2016-04-25 15:59 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-25 13:46 [PATCHv3 0/5] efi: detect erroneous firmware IRQ manipulation Mark Rutland
2016-04-25 13:46 ` Mark Rutland
2016-04-25 13:46 ` Mark Rutland
2016-04-25 13:46 ` [PATCHv3 1/5] efi/runtime-wrappers: detect FW irq flag corruption Mark Rutland
2016-04-25 13:46 ` Mark Rutland
[not found] ` <1461591994-14918-2-git-send-email-mark.rutland-5wv7dgnIgG8@public.gmane.org>
2016-04-25 14:12 ` Robin Murphy
2016-04-25 14:12 ` Robin Murphy
2016-04-25 14:12 ` Robin Murphy
2016-04-25 14:15 ` Matt Fleming
2016-04-25 14:15 ` Matt Fleming
[not found] ` <20160425141557.GA2829-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-04-25 14:18 ` Ard Biesheuvel
2016-04-25 14:18 ` Ard Biesheuvel
2016-04-25 14:18 ` Ard Biesheuvel
[not found] ` <CAKv+Gu8yH4u0-DNezUTk5b1DQJdEaH4RxR7YMQcwmkuRmEaNEw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2016-04-25 14:24 ` Matt Fleming
2016-04-25 14:24 ` Matt Fleming
2016-04-25 14:24 ` Matt Fleming
[not found] ` <20160425142435.GB2829-mF/unelCI9GS6iBeEJttW/XRex20P6io@public.gmane.org>
2016-04-25 14:27 ` Mark Rutland
2016-04-25 14:27 ` Mark Rutland
2016-04-25 14:27 ` Mark Rutland
2016-04-25 15:59 ` Matt Fleming [this message]
2016-04-25 15:59 ` Matt Fleming
2016-04-25 15:59 ` Matt Fleming
2016-04-25 16:03 ` Mark Rutland
2016-04-25 16:03 ` Mark Rutland
2016-04-25 14:33 ` Robin Murphy
2016-04-25 14:33 ` Robin Murphy
2016-04-25 13:46 ` [PATCHv3 2/5] arm64/efi: enable runtime call flag checking Mark Rutland
2016-04-25 13:46 ` Mark Rutland
2016-04-25 13:46 ` Mark Rutland
2016-04-25 13:54 ` Will Deacon
2016-04-25 13:54 ` Will Deacon
2016-04-25 13:46 ` [PATCHv3 3/5] arm/efi: " Mark Rutland
2016-04-25 13:46 ` Mark Rutland
2016-04-25 13:46 ` [PATCHv3 4/5] x86/efi: " Mark Rutland
2016-04-25 13:46 ` Mark Rutland
2016-04-25 13:46 ` [PATCHv3 5/5] efi/runtime-wrappers: remove ARCH_EFI_IRQ_FLAGS_MASK ifdef Mark Rutland
2016-04-25 13:46 ` Mark Rutland
[not found] ` <1461591994-14918-1-git-send-email-mark.rutland-5wv7dgnIgG8@public.gmane.org>
2016-04-25 16:03 ` [PATCHv3 0/5] efi: detect erroneous firmware IRQ manipulation Matt Fleming
2016-04-25 16:03 ` Matt Fleming
2016-04-25 16:03 ` Matt Fleming
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