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[82.69.66.36]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4983585c4fdsm1213644f8f.10.2026.11.09.13.45.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 09 Nov 2026 13:46:00 -0800 (PST) Date: Mon, 9 Nov 2026 21:45:58 +0000 From: David Laight To: "Maciej W. Rozycki" Cc: Christian Brauner , Geert Uytterhoeven , linux-fsdevel@vger.kernel.org, Linus Torvalds , Jann Horn , Josef Bacik , Chris Mason , Jeff Layton , NeilBrown , Eric Dumazet , Thomas Gleixner , Al Viro , Jonathan Corbet , Christoph Hellwig , Greg Kroah-Hartman , Joel Granados , Kees Cook , Jan Kara , Jan Kara , linux-kernel@vger.kernel.org, linux-nfs@vger.kernel.org, linux-acpi@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-s390@vger.kernel.org, linux-scsi@vger.kernel.org, linux-um@lists.infradead.org, linux-wireless@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, netdev@vger.kernel.org, ntfs3@lists.linux.dev, platform-driver-x86@vger.kernel.org, coreteam@netfilter.org, kexec@lists.infradead.org, linux-pci@vger.kernel.org, linux-sound@vger.kernel.org, netfilter-devel@vger.kernel.org, dri-devel@lists.freedesktop.org, ibm-acpi-devel@lists.sourceforge.net, jfs-discussion@lists.sourceforge.net, linux-alpha@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-cifs@vger.kernel.org, linux-fbdev@vger.kernel.org, linux-hwmon@vger.kernel.org, linux-mm@kvack.org, linux-sh@vger.kernel.org, linux-usb@vger.kernel.org, samba-technical@lists.samba.org, sparclinux@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-doc@vger.kernel.org, linux-serial@vger.kernel.org, linux-atm-general@lists.sourceforge.net, Takashi Iwai , linux-input@vger.kernel.org, linux-raid@vger.kernel.org, linux-ext4@vger.kernel.org, linux-modules@vger.kernel.org, linux-debuggers@vger.kernel.org, Chuck Lever Subject: Re: [PATCH RESEND v2 14/23] proc: let procfs copy in writes before pinning the entry Message-ID: <20261109214558.0d9d5228@pumpkin> In-Reply-To: References: <20261104-work-procfs-core-v2-14-76ace653a773@kernel.org> <20261107-akteur-gemieden-eckdaten-21304d085e35@brauner> <20261108185953.28054fb3@pumpkin> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; arm-unknown-linux-gnueabihf) X-Archived-By: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20261109_134604_547055_D0961845 X-CRM114-Status: GOOD ( 18.04 ) X-Spam-Score: -2.1 (--) X-BeenThere: kexec@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "kexec" X-Spam-Status: No, score=-4.3 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FORGED_FROMDOMAIN, FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_2 autolearn=no autolearn_force=no version=4.0.1 X-Spam-Checker-Version: SpamAssassin 4.0.1 (2024-03-26) on aws-us-west-2-korg-listserv-alma10-1 On Mon, 9 Nov 2026 05:05:57 +0000 (GMT) "Maciej W. Rozycki" wrote: > On Sun, 8 Nov 2026, David Laight wrote: > > > > > While at it, I think it would be good to use this conversion as an > > > > opportunity to replace "char *" by "void *", which will probably let > > > > you drop several casts from users. > > > > > > So I tried that too. The thing is it drops exactly one u8 * cast in > > > ntfs3's label write. > > > > Since char is now unsigned that one isn't even needed... > > Please excuse me missing the context, but what circumstances does your > claim refer to? Just that the cast would have to be: u8 *foo = (u8 *)bar; where 'bar' is 'char *', and I don't think you need a cast there when char is unsigned. David > > Maciej >