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Tue, 5 Dec 2023 09:43:57 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.9.0-alpha0-1178-geeaf0069a7-fm-20231114.001-geeaf0069 MIME-Version: 1.0 Message-Id: In-Reply-To: <8ec1ae92206c090c79a9ab9586bd17349798b08f.camel@redhat.com> References: <20231204123834.29247-6-pstanner@redhat.com> <202312051813.09WbvusW-lkp@intel.com> <8ec1ae92206c090c79a9ab9586bd17349798b08f.camel@redhat.com> Date: Tue, 05 Dec 2023 15:43:36 +0100 From: "Arnd Bergmann" To: "Philipp Stanner" , "kernel test robot" , "Bjorn Helgaas" , "Hanjun Guo" , "Neil Brown" , "Kent Overstreet" , "Jakub Kicinski" , "Niklas Schnelle" , "Uladzislau Koshchanka" , "John Sanpe" , "Dave Jiang" , "Masami Hiramatsu" , "Kees Cook" , "David Gow" , "Herbert Xu" , "Shuah Khan" , "wuqiang.matt" , "Yury Norov" , "Jason Baron" , "Andrew Morton" , "Ben Dooks" , "Danilo Krummrich" Cc: oe-kbuild-all@lists.linux.dev, "Linux Memory Management List" , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, Linux-Arch , stable@vger.kernel.org Subject: Re: [PATCH v3 5/5] lib, pci: unify generic pci_iounmap() Content-Type: text/plain X-Rspamd-Queue-Id: C161240019 X-Rspam-User: X-Stat-Signature: fz37sdn1sgomcxkeabhqokp919rkw6zd X-Rspamd-Server: rspam03 X-HE-Tag: 1701787441-147956 X-HE-Meta: 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 oEhLF8A2 zvDAcikVJ6ydITmMYVhsCkUE6q1wkJ1LVZ8gGE2+ODQHFaDdZhKY9EK+9pfDECHKuJkkbgCbRzO0GpP/Uss4WB8vk5ykwP6jKQIjB8DDW1vS0i4WR/zKBffDtkAOVba663aTZVmADR74dD7D3N72+b4mWv/vC04sIdjwmpUhoSZV/ngKB08LTT4tZ87grZQd48vIWoGJPDHOKFRddptdiMYscxJt+vhwSRk8r47/3tdho5iJi/EedCtiJfhqBB9njhDTQiZHUrHEyWgA= X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: List-Subscribe: List-Unsubscribe: On Tue, Dec 5, 2023, at 15:34, Philipp Stanner wrote: > Alright, so it seems that not all architectures provide ioport_unmap(). > So I'll provide yet another preprocessor guard in v4. Wohooo, we love > them... Right, I think CONFIG_HAS_IOPORT_MAP is the symbol you need to check here. There are a few targets that have inb/outb but can't map them to __iomem pointers for some reason, as well as more that have neither CONFIG_HAS_IOPORT nor CONFIG_HAS_IOPORT_MAP. Arnd