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[124.209.188.1]) by smtp.gmail.com with ESMTPSA id jl12-20020a170903134c00b0019edb3ae415sm6509017plb.14.2023.04.03.05.18.23 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 03 Apr 2023 05:18:25 -0700 (PDT) Date: Mon, 3 Apr 2023 21:18:20 +0900 From: Sergey Senozhatsky To: Jaewon Kim Cc: "pmladek@suse.com" , "senozhatsky@chromium.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , "jaewon31.kim@gmail.com" , GyeongHwan Hong Subject: Re: [RFC] vsprintf: compile error on %09pK Message-ID: <20230403121820.GD12892@google.com> References: <20230403104617epcms1p383bacbca705c0d7e4fffca6833050e42@epcms1p3> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230403104617epcms1p383bacbca705c0d7e4fffca6833050e42@epcms1p3> X-Stat-Signature: 7c7f3x5wy8wpxujbu7kt48qtwoimjg8p X-Rspam-User: X-Rspamd-Queue-Id: 76135A001F X-Rspamd-Server: rspam06 X-HE-Tag: 1680524307-748583 X-HE-Meta: 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 BaAi04TV HAW8rykzduoBwbw2U2gk5QO98I+36YHdwZ2Sruo/RG/LWLvw1TyYdUC7NbVfX7lwJ0yuEJrPO4s+wJgegCqo0/LccODGSR6NF06nSqMDMwy+78LrrN2itwuCBWqFSONaGX+RTtziPkZHDUblhRRV52HDhNcb7nELxnGrOz1e7BYRH+hZ41W9lwYyrlhk8VokQeXijL49IMwfy3oG90SYM9pU5leHZTMZZjdb8QLaSTEARFq1F1kC10o0BXQCZBH/x/HtU1vUUF+/Kkfim42TfxRF1U1sKFzrNmnBXlBoZg4e4gNzUgjcJFc1/mvQWieIgzXdAFn8Dv6YZrJtMP4ZoTa7JUhMZe+7vM9AhKppPXQpCylp3w5boX/2mApqcoxgf3g0e36Nob7/WzlSdLCPTt//3eGN1oG0tmuMIebfJ1FlO1EGQUM4jTH4/rVr0wBXHfTSb X-Bogosity: Ham, tests=bogofilter, spamicity=0.000007, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On (23/04/03 19:46), Jaewon Kim wrote: > I've just changed %09lx to %09pK on my driver code to hide the address, but I > faced compiler error. The %9pK without 0 worked. > > Is there restriction on %pK which does now allow %0 ? I've wondered whether I > did wrong or it is a printk problem. I don't think this is %pK limitation. %p should not take modification flags. E.g. %3p doesn't make sense, we still should print the entire pointer.