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Tue, 06 Feb 2024 06:49:23 -0800 (PST) X-Forwarded-Encrypted: i=0; AJvYcCW3hs7PvgTeoB4qLRLZOsRUNRp9FbBI85KFaec4QQCp1E/qwRVogBZGZQawOoPsqJ4cA1X6zA0AeqAXhLNI1FWbmF/9tS7MZHL0xA== Received: from [192.168.1.116] ([96.43.243.2]) by smtp.gmail.com with ESMTPSA id y3-20020a920903000000b003639cce3083sm570939ilg.20.2024.02.06.06.49.23 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 06 Feb 2024 06:49:23 -0800 (PST) Message-ID: <1ca1e83e-8283-4f64-b5fa-0d0a07dbdb7f@kernel.dk> Date: Tue, 6 Feb 2024 07:49:22 -0700 Precedence: bulk X-Mailing-List: linux-next@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: linux-next: build warnings after merge of the block tree Content-Language: en-US To: Stephen Rothwell Cc: Linux Kernel Mailing List , Linux Next Mailing List References: <20240206131050.0e86d882@canb.auug.org.au> From: Jens Axboe In-Reply-To: <20240206131050.0e86d882@canb.auug.org.au> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit On 2/5/24 7:10 PM, Stephen Rothwell wrote: > Hi all, > > After merging the block tree, today's linux-next build (arm > multi_v7_defconfig) produced these warnings: > > In file included from /home/sfr/next/next/include/linux/bits.h:6, > from /home/sfr/next/next/include/linux/bitops.h:6, > from /home/sfr/next/next/include/linux/kernel.h:23, > from /home/sfr/next/next/io_uring/nop.c:2: > /home/sfr/next/next/include/vdso/bits.h:7:40: warning: left shift count >= width of type [-Wshift-count-overflow] > 7 | #define BIT(nr) (UL(1) << (nr)) > | ^~ > /home/sfr/next/next/include/linux/io_uring_types.h:538:35: note: in expansion of macro 'BIT' > 538 | REQ_F_CAN_POLL = BIT(REQ_F_CAN_POLL_BIT), > | ^~~ > > (and mny more similar) > > Introduced by commit > > d964e8440442 ("io_uring: add io_file_can_poll() helper") > > REQ_F_CAN_POLL_BIT is 32. Oops yes, didn't get around to 32-bit compiles just yet. I'll fix it up, thanks. -- Jens Axboe