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Mon, 26 Jan 2026 12:43:26 -0800 (PST) Date: Mon, 26 Jan 2026 12:43:24 -0800 From: Deepak Gupta To: Zong Li Cc: Paul Walmsley , x86@kernel.org, Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley , Rob Herring , Krzysztof Kozlowski , Arnd Bergmann , Christian Brauner , Peter Zijlstra , Oleg Nesterov , Eric Biederman , Kees Cook , Jonathan Corbet , Shuah Khan , Jann Horn , Conor Dooley , Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?iso-8859-1?Q?Bj=F6rn?= Roy Baron , Andreas Hindborg , Alice Ryhl , Trevor Gross , Benno Lossin , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, alistair.francis@wdc.com, richard.henderson@linaro.org, jim.shu@sifive.com, Andy Chiu , kito.cheng@sifive.com, charlie@rivosinc.com, atishp@rivosinc.com, evan@rivosinc.com, cleger@rivosinc.com, alexghiti@rivosinc.com, samitolvanen@google.com, broonie@kernel.org, rick.p.edgecombe@intel.com, rust-for-linux@vger.kernel.org, Andreas Korb , Valentin Haudiquet , Charles Mirabile , Jesse Huang Subject: Re: [PATCH v26 00/28] riscv control-flow integrity for usermode Message-ID: References: <20251211-v5_user_cfi_series-v26-0-f0f419e81ac0@rivosinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Rspamd-Server: rspam01 X-Rspamd-Queue-Id: 5A65F4000F X-Stat-Signature: jex4twe7pfr55gf5rgkrs8by4g1s6nzd X-Rspam-User: X-HE-Tag: 1769460208-483017 X-HE-Meta: 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 f4wBtgfV olbGkbuUo7nOi/hXAxMXOueXqI82/AKv8W6V5o2SiumasrUP4Qvy6RgRhJ+vAGnwGYxYBQtTEjMZUYPq9Kf/7WRHWvU1qTlGFNcku1Vw8LVxxdcd34/T+mg4Igt4DZ/W/IjxnufZ0cyYBrKOSwiz/K+ElHAEPFRpPKPLgtLCWb2bIL/R0XY0s08MNXQ== 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 Wed, Jan 21, 2026 at 09:32:20AM +0800, Zong Li wrote: >On Thu, Jan 8, 2026 at 11:10 PM Deepak Gupta wrote: >> >> Hi Paul, >> >> I have a bugfix for a bug reported by Jesse Huang (thanks Jesse) in riscv >> implementation of `map_shadow_stack`. >> >> Should I send a new series or only the bugfix-patch for implementation >> of `map_shadow_stack` >> > >Hi Deepak, >Not sure if I missed the bugfix patch, I couldn't find it on the >mailing list. Could I know have you submitted it? If so, could you >please point me where the patch is? >Thanks No you didn't miss anything. I had been busy with job change and even though change was small. I wanted to do some basic testing before sending fix. I just sent the fix on this v26 series, patch #10/28. Sorry about the delay here. > >> Let me know. Thanks. >> >> -Deepak >> >> -Deepak >> >> >> >> On Fri, Dec 12, 2025 at 10:33 AM Deepak Gupta wrote: >> > >> > On Fri, Dec 12, 2025 at 01:30:29AM -0700, Paul Walmsley wrote: >> > >On Thu, 11 Dec 2025, Deepak Gupta via B4 Relay wrote: >> > > >> > >> v26: CONFIG_RISCV_USER_CFI depends on CONFIG_MMU (dependency of shadow stack >> > >> on MMU). Used b4 to pick tags, apparantly it messed up some tag picks. Fixing it >> > > >> > >Deepak: I'm now (at least) the third person to tell you to stop resending >> > >this entire series over and over again. >> > >> > To be very honest I also feel very bad doing and DOSing the lists. Sorry to you >> > and everyone else. >> > >> > But I have been sitting on this patch series for last 3-4 merge windows with >> > patches being exactly same/similar. So I have been a little more than desperate >> > to get it in. >> > >> > I really haven't had any meaningful feedback on patch series except stalling >> > just before each merge window for reasons which really shouldn't stall its >> > merge. Sure that's the nature of open source development and it's maintainer's >> > call at the end of the day. And I am new to this. I'll improve. >> > >> > > >> > >First, a modified version of the CFI v23 series was ALREADY SITTING IN >> > >LINUX-NEXT. So there's no reason you should be resending the entire >> > >series, UNLESS your intention for me is to drop the entire existing series >> > >and wait for another merge window. >> > > >> > >Second: when someone asks you questions about an individual patch, and you >> > >want to answer those questions, it's NOT GOOD for you to resend the entire >> > >28 series as the response! You are DDOSing a bunch of lists and E-mail >> > >inboxes. Just answer the question in a single E-mail. If you want to >> > >update a single patch, just send that one patch. >> > >> > Noted. I wasn't sure about it. I'll explicitly ask next time if you want me to >> > send another one. >> > >> > > >> > >If you don't start paying attention to these rules then people are going >> > >to start ignoring you -- at best! -- and it's going to give the entire >> > >community a bad reputation. >> > >> > Even before this, this patch series has been ignored largely. I don't know >> > how to get attention. All I wanted was either feedback or get it in. And as I >> > said I've been desparate to get it in. Also as I said, I'll improve. >> > >> > > >> > >Please acknowledge that you understand this, >> > >> > ACKed. >> > >> > > >> > > >> > >- Paul