linux-kernel - drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c:30:18: warning: unused function 'hdmi

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <202301181925.jNUBtSnM-lkp@intel.com>
Date:   Wed, 18 Jan 2023 19:59:43 +0800
From:   kernel test robot <lkp@...el.com>
To:     Samuel Holland <samuel@...lland.org>
Cc:     llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
        linux-kernel@...r.kernel.org, Maxime Ripard <maxime@...no.tech>
Subject: drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c:30:18: warning:
 unused function 'hdmi_read'

Hi Samuel,

FYI, the error/warning was bisected to this commit, please ignore it if it's irrelevant.

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   c1649ec55708ae42091a2f1bca1ab49ecd722d55
commit: 7d57f7f7975634a7a6c5b5adcfe70450426a830b drm/sun4i: Allow building the driver on RISC-V
date:   9 months ago
config: mips-randconfig-r022-20230118
compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 4196ca3278f78c6e19246e54ab0ecb364e37d66a)
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # install mips cross compiling tool for clang build
        # apt-get install binutils-mipsel-linux-gnu
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=7d57f7f7975634a7a6c5b5adcfe70450426a830b
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 7d57f7f7975634a7a6c5b5adcfe70450426a830b
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips olddefconfig
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=mips SHELL=/bin/bash drivers/gpu/drm/bridge/synopsys/ kernel/trace/ lib/

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@...el.com>

All warnings (new ones prefixed by >>):

>> drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c:30:18: warning: unused function 'hdmi_read' [-Wunused-function]
   static inline u8 hdmi_read(struct dw_hdmi_i2s_audio_data *audio, int offset)
                    ^
   1 warning generated.


vim +/hdmi_read +30 drivers/gpu/drm/bridge/synopsys/dw-hdmi-i2s-audio.c

2761ba6c0925ca drivers/gpu/drm/bridge/dw-hdmi-i2s-audio.c Kuninori Morimoto 2016-11-08  29  
2761ba6c0925ca drivers/gpu/drm/bridge/dw-hdmi-i2s-audio.c Kuninori Morimoto 2016-11-08 @30  static inline u8 hdmi_read(struct dw_hdmi_i2s_audio_data *audio, int offset)
2761ba6c0925ca drivers/gpu/drm/bridge/dw-hdmi-i2s-audio.c Kuninori Morimoto 2016-11-08  31  {
2761ba6c0925ca drivers/gpu/drm/bridge/dw-hdmi-i2s-audio.c Kuninori Morimoto 2016-11-08  32  	struct dw_hdmi *hdmi = audio->hdmi;
2761ba6c0925ca drivers/gpu/drm/bridge/dw-hdmi-i2s-audio.c Kuninori Morimoto 2016-11-08  33  
2761ba6c0925ca drivers/gpu/drm/bridge/dw-hdmi-i2s-audio.c Kuninori Morimoto 2016-11-08  34  	return audio->read(hdmi, offset);
2761ba6c0925ca drivers/gpu/drm/bridge/dw-hdmi-i2s-audio.c Kuninori Morimoto 2016-11-08  35  }
2761ba6c0925ca drivers/gpu/drm/bridge/dw-hdmi-i2s-audio.c Kuninori Morimoto 2016-11-08  36  

:::::: The code at line 30 was first introduced by commit
:::::: 2761ba6c0925ca9c5b917a95f68135d9dce443fb drm: bridge: add DesignWare HDMI I2S audio support

:::::: TO: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
:::::: CC: Archit Taneja <architt@...eaurora.org>

-- 
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests

View attachment "config" of type "text/plain" (156353 bytes)