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Thu, 11 Jun 2020 15:43:56 -0700 (PDT) Date: Thu, 11 Jun 2020 15:43:55 -0700 In-Reply-To: <49YBKY13Szz9sT4@ozlabs.org> Message-Id: <20200611224355.71174-1-ndesaulniers@google.com> Mime-Version: 1.0 References: <49YBKY13Szz9sT4@ozlabs.org> Reposting: https://groups.google.com/g/clang-built-linux/c/2dGVKSjE5Es X-Mailer: git-send-email 2.27.0.290.gba653c62da-goog Subject: Re: [PATCH v4 1/2] powerpc/uaccess: Implement unsafe_put_user() using 'asm goto' From: Nick Desaulniers To: patch-notifications@ellerman.id.au, christophe.leroy@c-s.fr, segher@kernel.crashing.org Content-Type: text/plain; charset="UTF-8" X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-kernel@vger.kernel.org, npiggin@gmail.com, clang-built-linux@googlegroups.com, paulus@samba.org, linuxppc-dev@lists.ozlabs.org Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Hello! It seems this patch broke our ppc32 builds, and we had to disable them [0]. :( >From what I can tell, though Michael mentioned this was merged on May 29, but our CI of -next was green for ppc32 until June 4, then mainline went red June 6. So this patch only got 2 days of soak time before the merge window opened. A general issue with the -next workflow seems to be that patches get different amounts of soak time. For higher risk patches like this one, can I please ask that they be help back a release if close to the merge window? Segher, Cristophe, I suspect Clang is missing support for the %L and %U output templates [1]. I've implemented support for some of these before in Clang via the documentation at [2], but these seem to be machine specific? Can you please point me to documentation/unit tests/source for these so that I can figure out what they should be doing, and look into implementing them in Clang? [0] https://github.com/ClangBuiltLinux/continuous-integration/pull/279 [1] https://bugs.llvm.org/show_bug.cgi?id=46186 [2] https://gcc.gnu.org/onlinedocs/gccint/Output-Template.html#Output-Template