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Tue, 5 Mar 2024 10:26:38 -0500 (EST) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.11.0-alpha0-208-g3f1d79aedb-fm-20240301.002-g3f1d79ae Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <5648dca0-4853-4dfb-91cf-282a656beb1e@app.fastmail.com> In-Reply-To: <8d5780f5-1047-48d7-a9c9-09b95c7b5604@gaisler.com> References: <20240224-sam-fix-sparc32-all-builds-v2-0-1f186603c5c4@ravnborg.org> <20240224-sam-fix-sparc32-all-builds-v2-4-1f186603c5c4@ravnborg.org> <8d5780f5-1047-48d7-a9c9-09b95c7b5604@gaisler.com> Date: Tue, 05 Mar 2024 16:26:18 +0100 From: "Arnd Bergmann" To: "Andreas Larsson" , "Sam Ravnborg" , "Maciej W. Rozycki" , sparclinux@vger.kernel.org, "Randy Dunlap" Cc: "Miquel Raynal" , linux-parport@lists.infradead.org, "David S . Miller" , linux-kernel@vger.kernel.org Subject: Re: [PATCH v2 4/7] sparc32: Do not select ZONE_DMA Content-Type: text/plain On Tue, Mar 5, 2024, at 16:06, Andreas Larsson wrote: > On 2024-02-24 18:42, Sam Ravnborg via B4 Relay wrote: >> diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig >> index 734f23daecca..bdbde506c01e 100644 >> --- a/arch/sparc/Kconfig >> +++ b/arch/sparc/Kconfig >> @@ -62,7 +62,6 @@ config SPARC32 >> select HAVE_UID16 >> select LOCK_MM_AND_FIND_VMA >> select OLD_SIGACTION >> - select ZONE_DMA > > This however makes a number of PCI drivers that depend on > ZONE_DMA unselectable. I think that is the correct thing to do then: the only drivers that I see with this dependency are PCI sound cards that apparently rely on DMA to the 16MB ISA range, which is not provided by sparc. Arnd