From mboxrd@z Thu Jan 1 00:00:00 1970 From: Geert Uytterhoeven Subject: Re: [RFT 00/13] iomap: Constify ioreadX() iomem argument Date: Wed, 8 Jan 2020 09:07:54 +0100 Message-ID: References: <1578415992-24054-1-git-send-email-krzk@kernel.org> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1578415992-24054-1-git-send-email-krzk@kernel.org> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: virtualization-bounces@lists.linux-foundation.org Sender: "Virtualization" To: Krzysztof Kozlowski Cc: Rich Felker , Jiri Slaby , "Michael S. Tsirkin" , David Airlie , Benjamin Herrenschmidt , DRI Development , virtualization@lists.linux-foundation.org, "James E.J. Bottomley" , netdev , Paul Mackerras , Linux-Arch , Dave Jiang , Yoshinori Sato , Michael Ellerman , Helge Deller , Linux-sh list , Alexey Brodkin , Ben Skeggs , nouveau@lists.freedesktop.org, Dave Airlie , Matt Turner , arcml , Nick Kossifidis List-Id: virtualization@lists.linuxfoundation.org Hi Krzysztof, On Tue, Jan 7, 2020 at 5:53 PM Krzysztof Kozlowski wrote: > The ioread8/16/32() and others have inconsistent interface among the > architectures: some taking address as const, some not. > > It seems there is nothing really stopping all of them to take > pointer to const. Shouldn't all of them take const volatile __iomem pointers? It seems the "volatile" is missing from all but the implementations in include/asm-generic/io.h. > Patchset was really tested on all affected architectures. > Build testing is in progress - I hope auto-builders will point any issues. > > > Todo > ==== > Convert also string versions (ioread16_rep() etc) if this aproach looks OK. > > > Merging > ======= > The first 5 patches - iomap, alpha, sh, parisc and powerpc - should probably go > via one tree, or even squashed into one. Yes, they should be squashed, cfr. Arnd's comment. I also wouldn't bother doing the updates in patches 6-10. The rest looks good to me. Thanks a lot! Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds