linux-kernel - Re: [PATCH -v2 5/9] intel-iommu: convert detect_intel_iommu to use iommu

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:	Tue, 10 Nov 2009 12:12:19 +0100
From:	Ingo Molnar <mingo@...e.hu>
To:	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc:	linux-kernel@...r.kernel.org, chrisw@...s-sol.org,
	wmw2@...radead.org, joerg.roedel@....com, muli@...ibm.com
Subject: Re: [PATCH -v2 5/9] intel-iommu: convert detect_intel_iommu to use
 iommu_init hook


* FUJITA Tomonori <fujita.tomonori@....ntt.co.jp> wrote:

> This changes detect_intel_iommu() to set intel_iommu_init() to
> iommu_init hook if detect_intel_iommu() finds the IOMMU.
> 
> Signed-off-by: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
> ---
>  arch/x86/kernel/pci-dma.c |    2 --
>  drivers/pci/dmar.c        |    4 ++++
>  include/linux/dmar.h      |   10 ----------
>  3 files changed, 4 insertions(+), 12 deletions(-)

FYI, the !CONFIG_DMAR case needed the fix below. (Wrt. the -ENODEV: it 
doesnt matter right now as we dont check the result of ->iommu_init(), 
but i kept it consistent with device initialization principles.)

	Ingo

diff --git a/include/linux/dmar.h b/include/linux/dmar.h
index d814d7d..df0cfb3 100644
--- a/include/linux/dmar.h
+++ b/include/linux/dmar.h
@@ -219,5 +219,8 @@ struct dmar_atsr_unit {
 };
 
 extern int intel_iommu_init(void);
-#endif
+#else /* !CONFIG_DMAR: */
+static inline int intel_iommu_init(void) { return -ENODEV; }
+#endif /* CONFIG_DMAR */
+
 #endif /* __DMAR_H__ */
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/