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[193.126.247.196]) by smtp.gmail.com with ESMTPSA id g15sm4626153wmk.17.2019.09.14.06.58.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 14 Sep 2019 06:58:15 -0700 (PDT) Date: Sat, 14 Sep 2019 06:58:13 -0700 (PDT) From: Paul Walmsley X-X-Sender: paulw@viisi.sifive.com To: Atish Patra cc: "linux-riscv@lists.infradead.org" , "linux-kernel@vger.kernel.org" , "palmer@sifive.com" , "merker@debian.org" Subject: Re: [PATCH] riscv: modify the Image header to improve compatibility with the ARM64 header In-Reply-To: <2e697e9c7966cf1a6cac415b6a247a8ba9f4de29.camel@wdc.com> Message-ID: References: <2e697e9c7966cf1a6cac415b6a247a8ba9f4de29.camel@wdc.com> User-Agent: Alpine 2.21.9999 (DEB 301 2018-08-15) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Sat, 14 Sep 2019, Atish Patra wrote: > Thanks for the quick fix. Is there a planned timeline when we can > remove the deprecated magic ? If Linus merges this patch, we should probably start the transition in the bootloaders, QEMU, and user tools as quickly as possible. Probably the key element in the timeline is when we remove support for the old 64-bit magic number location in the kernel. I'm told that U-Boot and QEMU have already issued releases with support for the v0.1 image header format, so dropping the old magic number from the kernel is probably at least a few years away. (This is to increase the likelihood that anyone using the old software has had the chance to update them.) > I was planning to send a U-boot header documentation patch to match > Linux one anyways. Do you want me that to rebase based on this patch or > are you planning to send a U-boot patch as well ? Once v5.3 comes out, please go ahead. - Paul