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[82.69.66.36]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-4773c394f0csm199510285e9.16.2025.11.04.01.07.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 04 Nov 2025 01:07:42 -0800 (PST) Date: Tue, 4 Nov 2025 09:07:40 +0000 From: David Laight To: Andy Shevchenko Cc: Andrew Morton , Guan-Chun Wu <409411716@gms.tku.edu.tw>, Kuan-Wei Chiu , linux-kernel@vger.kernel.org Subject: Re: [PATCH v1 1/1] base64: Unroll the tables initialisers Message-ID: <20251104090740.716dd95f@pumpkin> In-Reply-To: References: <20251103190510.627314-1-andriy.shevchenko@linux.intel.com> <20251103221857.1acaf6ab@pumpkin> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; arm-unknown-linux-gnueabihf) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Tue, 4 Nov 2025 10:18:39 +0200 Andy Shevchenko wrote: > On Mon, Nov 03, 2025 at 10:18:57PM +0000, David Laight wrote: .. > > > + [BASE64_STD] = { > > > + 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, /* 0 - 7 */ > > > > You need to use -1 not 0xff. > > Whu? The s8 type is pretty much 8-bit, care to explain the point? I think it is clang that complains that the value is out of range. David