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Tue, 24 Mar 2020 09:39:02 +0100 Subject: Re: [PATCH v4 2/3] display/blizzard: Remove redundant statement in blizzard_draw_line16_32() To: Chen Qun , qemu-devel@nongnu.org, qemu-trivial@nongnu.org References: <20200324082235.27980-1-kuhn.chenqun@huawei.com> <20200324082235.27980-3-kuhn.chenqun@huawei.com> From: Laurent Vivier Autocrypt: addr=laurent@vivier.eu; prefer-encrypt=mutual; keydata= mQINBFYFJhkBEAC2me7w2+RizYOKZM+vZCx69GTewOwqzHrrHSG07MUAxJ6AY29/+HYf6EY2 WoeuLWDmXE7A3oJoIsRecD6BXHTb0OYS20lS608anr3B0xn5g0BX7es9Mw+hV/pL+63EOCVm SUVTEQwbGQN62guOKnJJJfphbbv82glIC/Ei4Ky8BwZkUuXd7d5NFJKC9/GDrbWdj75cDNQx UZ9XXbXEKY9MHX83Uy7JFoiFDMOVHn55HnncflUncO0zDzY7CxFeQFwYRbsCXOUL9yBtqLer Ky8/yjBskIlNrp0uQSt9LMoMsdSjYLYhvk1StsNPg74+s4u0Q6z45+l8RAsgLw5OLtTa+ePM JyS7OIGNYxAX6eZk1+91a6tnqfyPcMbduxyBaYXn94HUG162BeuyBkbNoIDkB7pCByed1A7q q9/FbuTDwgVGVLYthYSfTtN0Y60OgNkWCMtFwKxRaXt1WFA5ceqinN/XkgA+vf2Ch72zBkJL RBIhfOPFv5f2Hkkj0MvsUXpOWaOjatiu0fpPo6Hw14UEpywke1zN4NKubApQOlNKZZC4hu6/ 8pv2t4HRi7s0K88jQYBRPObjrN5+owtI51xMaYzvPitHQ2053LmgsOdN9EKOqZeHAYG2SmRW LOxYWKX14YkZI5j/TXfKlTpwSMvXho+efN4kgFvFmP6WT+tPnwARAQABtCJMYXVyZW50IFZp dmllciA8bGF1cmVudEB2aXZpZXIuZXU+iQI4BBMBAgAiBQJWBTDeAhsDBgsJCAcDAgYVCAIJ CgsEFgIDAQIeAQIXgAAKCRDzDDi9Py++PCEdD/oD8LD5UWxhQrMQCsUgLlXCSM7sxGLkwmmF ozqSSljEGRhffxZvO35wMFcdX9Z0QOabVoFTKrT04YmvbjsErh/dP5zeM/4EhUByeOS7s6Yl HubMXVQTkak9Wa9Eq6irYC6L41QNzz/oTwNEqL1weV1+XC3TNnht9B76lIaELyrJvRfgsp9M rE+PzGPo5h7QHWdL/Cmu8yOtPLa8Y6l/ywEJ040IoiAUfzRoaJs2csMXf0eU6gVBhCJ4bs91 jtWTXhkzdl4tdV+NOwj3j0ukPy+RjqeL2Ej+bomnPTOW8nAZ32dapmu7Fj7VApuQO/BSIHyO NkowMMjB46yohEepJaJZkcgseaus0x960c4ua/SUm/Nm6vioRsxyUmWd2nG0m089pp8LPopq WfAk1l4GciiMepp1Cxn7cnn1kmG6fhzedXZ/8FzsKjvx/aVeZwoEmucA42uGJ3Vk9TiVdZes lqMITkHqDIpHjC79xzlWkXOsDbA2UY/P18AtgJEZQPXbcrRBtdSifCuXdDfHvI+3exIdTpvj BfbgZAar8x+lcsQBugvktlQWPfAXZu4Shobi3/mDYMEDOE92dnNRD2ChNXg2IuvAL4OW40wh gXlkHC1ZgToNGoYVvGcZFug1NI+vCeCFchX+L3bXyLMg3rAfWMFPAZLzn42plIDMsBs+x2yP +bkCDQRWBSYZARAAvFJBFuX9A6eayxUPFaEczlMbGXugs0mazbOYGlyaWsiyfyc3PStHLFPj rSTaeJpPCjBJErwpZUN4BbpkBpaJiMuVO6egrC8Xy8/cnJakHPR2JPEvmj7Gm/L9DphTcE15 92rxXLesWzGBbuYxKsj8LEnrrvLyi3kNW6B5LY3Id+ZmU8YTQ2zLuGV5tLiWKKxc6s3eMXNq wrJTCzdVd6ThXrmUfAHbcFXOycUyf9vD+s+WKpcZzCXwKgm7x1LKsJx3UhuzT8ier1L363RW ZaJBZ9CTPiu8R5NCSn9V+BnrP3wlFbtLqXp6imGhazT9nJF86b5BVKpF8Vl3F0/Y+UZ4gUwL d9cmDKBcmQU/JaRUSWvvolNu1IewZZu3rFSVgcpdaj7F/1aC0t5vLdx9KQRyEAKvEOtCmP4m 38kU/6r33t3JuTJnkigda4+Sfu5kYGsogeYG6dNyjX5wpK5GJIJikEhdkwcLM+BUOOTi+I9u tX03BGSZo7FW/J7S9y0l5a8nooDs2gBRGmUgYKqQJHCDQyYut+hmcr+BGpUn9/pp2FTWijrP inb/Pc96YDQLQA1q2AeAFv3Rx3XoBTGl0RCY4KZ02c0kX/dm3eKfMX40XMegzlXCrqtzUk+N 8LeipEsnOoAQcEONAWWo1HcgUIgCjhJhBEF0AcELOQzitbJGG5UAEQEAAYkCHwQYAQIACQUC VgUmGQIbDAAKCRDzDDi9Py++PCD3D/9VCtydWDdOyMTJvEMRQGbx0GacqpydMEWbE3kUW0ha US5jz5gyJZHKR3wuf1En/3z+CEAEfP1M3xNGjZvpaKZXrgWaVWfXtGLoWAVTfE231NMQKGoB w2Dzx5ivIqxikXB6AanBSVpRpoaHWb06tPNxDL6SVV9lZpUn03DSR6gZEZvyPheNWkvz7bE6 FcqszV/PNvwm0C5Ju7NlJA8PBAQjkIorGnvN/vonbVh5GsRbhYPOc/JVwNNr63P76rZL8Gk/ hb3xtcIEi5CCzab45+URG/lzc6OV2nTj9Lg0SNcRhFZ2ILE3txrmI+aXmAu26+EkxLLfqCVT ohb2SffQha5KgGlOSBXustQSGH0yzzZVZb+HZPEvx6d/HjQ+t9sO1bCpEgPdZjyMuuMp9N1H ctbwGdQM2Qb5zgXO+8ZSzwC+6rHHIdtcB8PH2j+Nd88dVGYlWFKZ36ELeZxD7iJflsE8E8yg OpKgu3nD0ahBDqANU/ZmNNarBJEwvM2vfusmNnWm3QMIwxNuJghRyuFfx694Im1js0ZY3LEU JGSHFG4ZynA+ZFUPA6Xf0wHeJOxGKCGIyeKORsteIqgnkINW9fnKJw2pgk8qHkwVc3Vu+wGS ZiJK0xFusPQehjWTHn9WjMG1zvQ5TQQHxau/2FkP45+nRPco6vVFQe8JmgtRF8WFJA== Message-ID: Date: Tue, 24 Mar 2020 09:38:59 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.6.0 MIME-Version: 1.0 In-Reply-To: <20200324082235.27980-3-kuhn.chenqun@huawei.com> Content-Type: text/plain; charset=utf-8 Content-Language: fr Content-Transfer-Encoding: 8bit X-Provags-ID: V03:K1:K5VS7suM1wrt9nFfy8LWa+yQFNELTzcDobv/7WzBY3c2k35E8a2 IIRbCrhvh054If/15MOy9CEyOVMsbxF7AtnDWVb++FFXslcUMUWfqGlXSx9rU0Gpyy9qrak ZaF7sQLj73YuOFqWOPk+iezKogJuYa3/w6MtWa+IT7LGlcsnEg19GzxuF1LJU5R1ko9rjPZ wkmto3zSvVrWBKSSeRSiQ== X-UI-Out-Filterresults: notjunk:1;V03:K0:7JXaT+UUhWw=:KxZzz3NXShlxBjv3/F4ml5 fvdJqZx0jtfiHwNwX5LQGT2C4F6nQYgBdQlip8RwfgPT5ebioDko8hhwri5+tz8yVUTnkjE5i YYf5aZGYdp7u9AdKl4Glx2hmw6rQ/J/QX6WYxAww9Fhi0eXUOzYwwK/QWR2V4oihSgUWbs9Jh zGm8H3toychKnMyifKdyHl3hXX/kvSIXNZW+IvxH1lb+bexUpUZ6i/eXaOpqT/NBeLwbU7R96 EccZQVggbSsrIGb/NR8khzk/1egIBg/wmG/ufu/2ap42c71tpK9KGewoA9VrtaVCoocEx5sJ5 9SuhpylZGPOv8RODNlGH3gYok5fINdtzavRqGkCEDfXdFIJ2mn8n8Zz6LxtCskoa+unPF6oCL SX5HDuOsh8rovPajqy+8gZKl1si4Yjwg1awsQbt7I5mmrfrkyCbWXHcyKFXUwBz+Yoc1U2GmO 8uNiYywBZ507LRl4QCdNSHwrGFE8d4cKl27qWrI4MVIzzX7l4Oro93AadtL940Rj/gGIV/EyT me3OQiMn2zZb8TX2Ao5CepfjivDPGwxzfn7IEFxxV6QGK/tF6GuNodi4NEbfRZksBPKG0ROcR zRznbxChSaRecItDYbaufTGwBOp3rAfy7AVdwKQ8RI4dEc1M7+K+EmoTXnuFBl5Bu0H6vPHpy jJCMVQdmHZKiXIBzu4bFmYVwJKShidHLhy2htGTahyWYUELIfZgNhUs29fhgwu/ajokyonxu+ wKArTh02QskvUBc0hrzmqzy0Mpl9B5nDb3lMXBmsH2dh1AeIJDENm7lxzsnh5c2WkzBVEXOeL nCnzmNEg/98jDazwGiTNieCheghUDwsb2kll6fqruVi7kWEcbzo6ClP+jY2H9tm2dmaqVjs X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 212.227.126.130 X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Peter Maydell , philmd@redhat.com, zhang.zhanghailiang@huawei.com, Euler Robot Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Le 24/03/2020 à 09:22, Chen Qun a écrit : > Clang static code analyzer show warning: > hw/display/blizzard.c:940:9: warning: Value stored to 'data' is never read > data >>= 5; > ^ ~ > Reported-by: Euler Robot > Signed-off-by: Chen Qun > --- > Cc: Andrzej Zaborowski > Cc: Peter Maydell > --- > hw/display/blizzard.c | 1 - > 1 file changed, 1 deletion(-) > > diff --git a/hw/display/blizzard.c b/hw/display/blizzard.c > index 359e399c2a..62517bdf75 100644 > --- a/hw/display/blizzard.c > +++ b/hw/display/blizzard.c > @@ -937,7 +937,6 @@ static void blizzard_draw_line16_32(uint32_t *dest, > g = (data & 0x3f) << 2; > data >>= 6; > r = (data & 0x1f) << 3; > - data >>= 5; > *dest++ = rgb_to_pixel32(r, g, b); > } > } > Perhaps it would be clearer to use extract32() to compute r, g and b? Thanks, Laurent