From: "Michael S. Tsirkin" <mst@redhat.com>
To: Andi Kleen <ak@linux.intel.com>
Cc: "Kuppuswamy,
Sathyanarayanan" <sathyanarayanan.kuppuswamy@linux.intel.com>,
Kuppuswamy Sathyanarayanan <knsathya@kernel.org>,
Linux Doc Mailing List <linux-doc@vger.kernel.org>,
Peter Zijlstra <peterz@infradead.org>,
Linux PCI <linux-pci@vger.kernel.org>,
linux-mips@vger.kernel.org,
James E J Bottomley <James.Bottomley@hansenpartnership.com>,
Dave Hansen <dave.hansen@intel.com>,
Peter H Anvin <hpa@zytor.com>,
sparclinux@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>,
linux-arch <linux-arch@vger.kernel.org>,
Jonathan Corbet <corbet@lwn.net>, Helge Deller <deller@gmx.de>,
X86 ML <x86@kernel.org>, Ingo Molnar <mingo@redhat.com>,
Arnd Bergmann <arnd@arndb.de>, Tony Luck <tony.luck@intel.com>,
Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>,
Bjorn Helgaas <bhelgaas@google.com>,
Dan Williams <dan.j.williams@intel.com>,
virtualization@lists.linux-foundation.org,
Richard Henderson <rth@twiddle.net>,
Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
linux-parisc@vger.kernel.org,
Sean Christopherson <seanjc@google.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
linux-alpha@vger.kernel.org,
"David S . Miller" <davem@davemloft.net>,
Kirill Shutemov <kirill.shutemov@linux.intel.com>
Subject: Re: [PATCH v4 11/15] pci: Add pci_iomap_shared{,_range}
Date: Sat, 11 Sep 2021 19:54:36 -0400 [thread overview]
Message-ID: <20210911195006-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <f672dc1c-5280-7bbc-7a56-7c7aab31725c@linux.intel.com>
On Fri, Sep 10, 2021 at 09:34:45AM -0700, Andi Kleen wrote:
> > > that's why
> > > an extra level of defense of ioremap opt-in is useful.
> > OK even assuming this, why is pci_iomap opt-in useful?
> > That never happens before probe - there's simply no pci_device then.
>
>
> Hmm, yes that's true. I guess we can make it default to opt-in for
> pci_iomap.
>
> It only really matters for device less ioremaps.
OK. And same thing for other things with device, such as
devm_platform_ioremap_resource.
If we agree on all that, this will basically remove virtio
changes from the picture ;)
--
MST
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next prev parent reply other threads:[~2021-09-11 23:54 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210805005218.2912076-1-sathyanarayanan.kuppuswamy@linux.intel.com>
[not found] ` <20210805005218.2912076-11-sathyanarayanan.kuppuswamy@linux.intel.com>
2021-08-12 19:46 ` [PATCH v4 10/15] asm/io.h: Add ioremap_shared fallback Bjorn Helgaas
2021-08-13 7:58 ` Christoph Hellwig
[not found] ` <20210805005218.2912076-12-sathyanarayanan.kuppuswamy@linux.intel.com>
2021-08-13 8:02 ` [PATCH v4 11/15] pci: Add pci_iomap_shared{,_range} Christoph Hellwig
2021-08-23 23:56 ` Michael S. Tsirkin
[not found] ` <26a3cce5-ddf7-cbe6-a41e-58a2aea48f78@linux.intel.com>
2021-08-24 1:04 ` Dan Williams
2021-08-24 2:14 ` Andi Kleen
2021-08-24 9:47 ` Michael S. Tsirkin
2021-08-24 17:20 ` Andi Kleen
2021-08-24 18:55 ` Bjorn Helgaas
2021-08-24 20:14 ` Andi Kleen
2021-08-24 20:31 ` Bjorn Helgaas
2021-08-24 20:50 ` Andi Kleen
2021-08-24 21:05 ` Dan Williams
2021-08-25 14:52 ` Bjorn Helgaas
2021-08-29 15:27 ` Michael S. Tsirkin
2021-08-29 16:17 ` Andi Kleen
2021-08-29 22:26 ` Michael S. Tsirkin
2021-08-30 5:11 ` Andi Kleen
2021-08-30 20:59 ` Michael S. Tsirkin
2021-08-31 0:23 ` Andi Kleen
2021-09-10 9:54 ` Michael S. Tsirkin
2021-09-10 16:34 ` Andi Kleen
2021-09-11 23:54 ` Michael S. Tsirkin [this message]
2021-09-13 5:53 ` Michael S. Tsirkin
2021-09-24 22:43 ` Andi Kleen
2021-09-27 9:07 ` Michael S. Tsirkin
[not found] ` <CACK8Z6E+__kZqU8mVUnYhFc0wz_e81qBLO3ffqSDghVtztNeQw@mail.gmail.com>
2021-08-24 21:59 ` Dan Williams
2021-08-24 7:07 ` Christoph Hellwig
2021-08-24 17:04 ` Andi Kleen
2021-08-29 15:34 ` Michael S. Tsirkin
2021-08-29 16:43 ` Andi Kleen
2021-08-24 9:12 ` Michael S. Tsirkin
[not found] ` <20210805005218.2912076-13-sathyanarayanan.kuppuswamy@linux.intel.com>
2021-08-13 8:07 ` [PATCH v4 12/15] pci: Mark MSI data shared Christoph Hellwig
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