netdev - Re: [PATCH RFC 03/77] PCI/MSI/s390: Fix single MSI only check

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 linux-cve-announce 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]

Message-ID: <20131004093956.183f6901@mschwide>
Date:	Fri, 4 Oct 2013 09:39:56 +0200
From:	Martin Schwidefsky <schwidefsky@...ibm.com>
To:	Alexander Gordeev <agordeev@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>,
	Ralf Baechle <ralf@...ux-mips.org>,
	Michael Ellerman <michael@...erman.id.au>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Ingo Molnar <mingo@...hat.com>, Tejun Heo <tj@...nel.org>,
	Dan Williams <dan.j.williams@...el.com>,
	Andy King <acking@...are.com>, Jon Mason <jon.mason@...el.com>,
	Matt Porter <mporter@...nel.crashing.org>,
	stable@...r.kernel.org, linux-pci@...r.kernel.org,
	linux-mips@...ux-mips.org, linuxppc-dev@...ts.ozlabs.org,
	linux390@...ibm.com, linux-s390@...r.kernel.org, x86@...nel.org,
	linux-ide@...r.kernel.org, iss_storagedev@...com,
	linux-nvme@...ts.infradead.org, linux-rdma@...r.kernel.org,
	netdev@...r.kernel.org, e1000-devel@...ts.sourceforge.net,
	linux-driver@...gic.com,
	Solarflare linux maintainers <linux-net-drivers@...arflare.com>,
	"VMware, Inc." <pv-drivers@...are.com>, linux-scsi@...r.kernel.org
Subject: Re: [PATCH RFC 03/77] PCI/MSI/s390: Fix single MSI only check

On Wed,  2 Oct 2013 12:48:19 +0200
Alexander Gordeev <agordeev@...hat.com> wrote:

> Multiple MSIs have never been supported on s390 architecture,
> but the platform code fails to report single MSI only.
> 
> Signed-off-by: Alexander Gordeev <agordeev@...hat.com>
> ---
>  arch/s390/pci/pci.c |    2 ++
>  1 files changed, 2 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c
> index f17a834..c79c6e4 100644
> --- a/arch/s390/pci/pci.c
> +++ b/arch/s390/pci/pci.c
> @@ -427,6 +427,8 @@ int arch_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
>  	pr_debug("%s: requesting %d MSI-X interrupts...", __func__, nvec);
>  	if (type != PCI_CAP_ID_MSIX && type != PCI_CAP_ID_MSI)
>  		return -EINVAL;
> +	if (type == PCI_CAP_ID_MSI && nvec > 1)
> +		return 1;
>  	msi_vecs = min(nvec, ZPCI_MSI_VEC_MAX);
>  	msi_vecs = min_t(unsigned int, msi_vecs, CONFIG_PCI_NR_MSI);
> 

Acked-by: Martin Schwidefsky <schwidefsky@...ibm.com>

-- 
blue skies,
   Martin.

"Reality continues to ruin my life." - Calvin.

--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html