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Mon, 29 Jan 2024 02:16:40 -0800 (PST) Received: from localhost ([102.140.209.237]) by smtp.gmail.com with ESMTPSA id cl10-20020a5d5f0a000000b0033aeb20f5b8sm3292519wrb.13.2024.01.29.02.16.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 29 Jan 2024 02:16:39 -0800 (PST) Date: Mon, 29 Jan 2024 13:16:36 +0300 From: Dan Carpenter To: David Laight Cc: 'Jani Nikula' , "'linux-kernel@vger.kernel.org'" , 'Linus Torvalds' , 'Netdev' , "'dri-devel@lists.freedesktop.org'" , 'Jens Axboe' , "'Matthew Wilcox (Oracle)'" , 'Christoph Hellwig' , "'linux-btrfs@vger.kernel.org'" , 'Andrew Morton' , 'Andy Shevchenko' , "'David S . Miller'" Subject: Re: [PATCH next 10/11] block: Use a boolean expression instead of max() on booleans Message-ID: <6eaa0f91-104f-4efb-9ea3-7c7f21e75842@moroto.mountain> References: <0ca26166dd2a4ff5a674b84704ff1517@AcuMS.aculab.com> <87sf2gjyn9.fsf@intel.com> <963d1126612347dd8c398a9449170e16@AcuMS.aculab.com> 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-Disposition: inline In-Reply-To: <963d1126612347dd8c398a9449170e16@AcuMS.aculab.com> On Mon, Jan 29, 2024 at 09:22:40AM +0000, David Laight wrote: > From: Jani Nikula > > Sent: 29 January 2024 09:08 > > > > On Sun, 28 Jan 2024, David Laight wrote: > > > blk_stack_limits() contains: > > > t->zoned = max(t->zoned, b->zoned); > > > These are bool, so it is just a bitwise or. > > > > Should be a logical or, really. And || in code. > > Not really, bitwise is fine for bool (especially for 'or') > and generates better code. For | vs || the type doesn't make a difference... It makes a difference for AND. "0x1 & 0x10" vs "0x1 && 0x10". regards, dan carpenter