[kbuild-all] [arm-tegra:for-5.10/firmware 1/1] drivers/mailbox/tegra-hsp.c:332:6: error: implicit declaration of function 'tegra_is_silicon'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra.git for-5.10/firmware head: 23d31e4703d73f8d28a78ac7a2d36db834069624 commit: 23d31e4703d73f8d28a78ac7a2d36db834069624 [1/1] firmware: tegra: Enable BPMP support on Tegra234 config: arm64-allyesconfig (attached as .config) compiler: aarch64-linux-gcc (GCC) 9.3.0 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 git checkout 23d31e4703d73f8d28a78ac7a2d36db834069624 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/mailbox/tegra-hsp.c: In function 'tegra_hsp_doorbell_startup': 332 | if (tegra_is_silicon() && !tegra_hsp_doorbell_can_ring(db)) | ^~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors # https://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra.git/c... git remote add arm-tegra https://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra.git git fetch --no-tags arm-tegra for-5.10/firmware git checkout 23d31e4703d73f8d28a78ac7a2d36db834069624 vim +/tegra_is_silicon +332 drivers/mailbox/tegra-hsp.c 307 308 static int tegra_hsp_doorbell_startup(struct mbox_chan *chan) 309 { 310 struct tegra_hsp_doorbell *db = chan->con_priv; 311 struct tegra_hsp *hsp = db->channel.hsp; 312 struct tegra_hsp_doorbell *ccplex; 313 unsigned long flags; 314 u32 value; 315 316 if (db->master >= chan->mbox->num_chans) { 317 dev_err(chan->mbox->dev, 318 "invalid master ID %u for HSP channel\n", 319 db->master); 320 return -EINVAL; 321 } 322 323 ccplex = tegra_hsp_doorbell_get(hsp, TEGRA_HSP_DB_MASTER_CCPLEX); 324 if (!ccplex) 325 return -ENODEV; 326 327 /* 328 * On simulation platforms the BPMP hasn't had a chance yet to mark 329 * the doorbell as ringable by the CCPLEX, so we want to skip extra 330 * checks here. 331 */ 333 return -ENODEV; 334 335 spin_lock_irqsave(&hsp->lock, flags); 336 337 value = tegra_hsp_channel_readl(&ccplex->channel, HSP_DB_ENABLE); 338 value |= BIT(db->master); 339 tegra_hsp_channel_writel(&ccplex->channel, value, HSP_DB_ENABLE); 340 341 spin_unlock_irqrestore(&hsp->lock, flags); 342 343 return 0; 344 } 345 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org