From: christoffer.dall@linaro.org (Christoffer Dall)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v4 12/12] ARM: KVM: fix warning in mmu.c
Date: Tue, 18 Feb 2014 11:30:56 -0800 [thread overview]
Message-ID: <20140218193056.GB2084@cbox> (raw)
In-Reply-To: <1392737253-10480-13-git-send-email-marc.zyngier@arm.com>
On Tue, Feb 18, 2014 at 03:27:33PM +0000, Marc Zyngier wrote:
> Compiling with THP enabled leads to the following warning:
>
> arch/arm/kvm/mmu.c: In function ?unmap_range?:
> arch/arm/kvm/mmu.c:177:39: warning: ?pte? may be used uninitialized in this function [-Wmaybe-uninitialized]
> if (kvm_pmd_huge(*pmd) || page_empty(pte)) {
> ^
> Code inspection reveals that these two cases are mutually exclusive,
> so GCC is a bit overzealous here. Silence it anyway by initializing
> pte to NULL and testing it later on.
>
> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Acked-by: Christoffer Dall <christoffer.dall@linaro.org>
next prev parent reply other threads:[~2014-02-18 19:30 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-18 15:27 [PATCH v4 00/12] arm/arm64: KVM: host cache maintenance when guest caches are off Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 01/12] arm64: KVM: force cache clean on page fault when " Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 02/12] arm64: KVM: allows discrimination of AArch32 sysreg access Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 03/12] arm64: KVM: trap VM system registers until MMU and caches are ON Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 04/12] ARM: KVM: introduce kvm_p*d_addr_end Marc Zyngier
2014-02-18 15:41 ` Catalin Marinas
2014-02-18 19:29 ` Christoffer Dall
2014-02-18 15:27 ` [PATCH v4 05/12] arm64: KVM: flush VM pages before letting the guest enable caches Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 06/12] ARM: KVM: force cache clean on page fault when caches are off Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 07/12] ARM: KVM: fix handling of trapped 64bit coprocessor accesses Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 08/12] ARM: KVM: fix ordering of " Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 09/12] ARM: KVM: introduce per-vcpu HYP Configuration Register Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 10/12] ARM: KVM: add world-switch for AMAIR{0,1} Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 11/12] ARM: KVM: trap VM system registers until MMU and caches are ON Marc Zyngier
2014-02-18 15:27 ` [PATCH v4 12/12] ARM: KVM: fix warning in mmu.c Marc Zyngier
2014-02-18 19:30 ` Christoffer Dall [this message]
2014-02-18 20:57 ` [PATCH v4 00/12] arm/arm64: KVM: host cache maintenance when guest caches are off Eric Northup
2014-02-19 9:02 ` Marc Zyngier
2014-02-19 10:12 ` Catalin Marinas
2014-02-19 10:43 ` Marc Zyngier
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