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Mon, 02 Jan 2023 22:51:26 -0800 (PST) Date: Tue, 3 Jan 2023 07:51:24 +0100 From: Corentin Labbe To: Herbert Xu Cc: Christoph Hellwig , Catalin Marinas , Ard Biesheuvel , Will Deacon , Marc Zyngier , Arnd Bergmann , Greg Kroah-Hartman , Andrew Morton , Linus Torvalds , Linux Memory Management List , Linux ARM , LinuxKernelMailingList@gondor.apana.org.au, linux-kernel@vger.kernel.org, "David S. Miller" , Linux Crypto Mailing List Subject: Re: [PATCH] crypto: sun8i-ss - Remove GFP_DMA and add DMA alignment padding Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Stat-Signature: j9uge6c1rp8yw6roqww8wfhtd4pn7zhp X-Rspam-User: X-Rspamd-Queue-Id: 28AE0C0005 X-Rspamd-Server: rspam06 X-HE-Tag: 1672728687-383550 X-HE-Meta: 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 D3/Uz4HH ZqQxPnyyPAzLCx0rPTpKn16PUNRrA+7BkdL8pVPO/oGhyIWsCroxhpNr4QMXUbsRd3/CR0dIn4piyym1K1lEN5zJjBzHas+uk0ELK1bedRbXOgJ9qqIxTKpZR6eHDjStvOuwRzZIhoxfNrDdsUwNVfdzXf7ibr8uMnE/79mIT8TcpLnEkVxbiBoGymjIezMXW8Ouf9LryroSZIQUJ0Wpdvq2Pkg== 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: Le Thu, Dec 29, 2022 at 04:58:21PM +0800, Herbert Xu a écrit : > GFP_DMA does not guarantee that the returned memory is aligned > for DMA. In fact for sun8i-ss it is superfluous and can be removed. > > However, kmalloc may start returning DMA-unaligned memory in future > so fix this by adding the alignment by hand. > > Signed-off-by: Herbert Xu Hello Tested-by: Corentin Labbe Tested-on: sun8i-a83t-bananapi-m3 Acked-by: Corentin Labbe This means that lot of other crypto driver (sun8i-ce, amlogic, etc...) I maintain need the same fix, right ? Regards