Hi Fabio, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 4d02da974ea85a62074efedf354e82778f910d82 commit: 17621758e53f0e6bf1ac469cca2a59fa6457d205 media: fsl-viu: Do not redefine out_be32()/in_be32() for CONFIG_M68K date: 3 months ago config: m68k-randconfig-r016-20201120 (attached as .config) compiler: m68k-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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=17621758e53f0e6bf1ac469cca2a59fa6457d205 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 17621758e53f0e6bf1ac469cca2a59fa6457d205 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=m68k If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): drivers/media/platform/fsl-viu.c: In function 'viu_start_dma': >> drivers/media/platform/fsl-viu.c:253:2: error: implicit declaration of function 'out_be32' [-Werror=implicit-function-declaration] 253 | out_be32(&vr->status_cfg, SOFT_RST); | ^~~~~~~~ drivers/media/platform/fsl-viu.c: In function 'viu_stop_dma': >> drivers/media/platform/fsl-viu.c:266:15: error: implicit declaration of function 'in_be32' [-Werror=implicit-function-declaration] 266 | status_cfg = in_be32(&vr->status_cfg); | ^~~~~~~ cc1: some warnings being treated as errors vim +/out_be32 +253 drivers/media/platform/fsl-viu.c 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 245 adfcf2e980c4b61 drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-05 246 static void viu_start_dma(struct viu_dev *dev) 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 247 { 27e4b6cfc970369 drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-06 248 struct viu_reg __iomem *vr = dev->vr; 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 249 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 250 dev->field = 0; 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 251 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 252 /* Enable DMA operation */ 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 @253 out_be32(&vr->status_cfg, SOFT_RST); 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 254 out_be32(&vr->status_cfg, INT_FIELD_EN); 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 255 } 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 256 adfcf2e980c4b61 drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-05 257 static void viu_stop_dma(struct viu_dev *dev) 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 258 { 27e4b6cfc970369 drivers/media/platform/fsl-viu.c Mauro Carvalho Chehab 2018-04-06 259 struct viu_reg __iomem *vr = dev->vr; 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 260 int cnt = 100; 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 261 u32 status_cfg; 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 262 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 263 out_be32(&vr->status_cfg, 0); 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 264 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 265 /* Clear pending interrupts */ 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 @266 status_cfg = in_be32(&vr->status_cfg); 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 267 if (status_cfg & 0x3f0000) 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 268 out_be32(&vr->status_cfg, status_cfg & 0x3f0000); 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 269 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 270 if (status_cfg & DMA_ACT) { 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 271 do { 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 272 status_cfg = in_be32(&vr->status_cfg); 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 273 if (status_cfg & INT_DMA_END_STATUS) 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 274 break; 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 275 } while (cnt--); 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 276 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 277 if (cnt < 0) { 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 278 /* timed out, issue soft reset */ 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 279 out_be32(&vr->status_cfg, SOFT_RST); 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 280 out_be32(&vr->status_cfg, 0); 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 281 } else { 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 282 /* clear DMA_END and other pending irqs */ 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 283 out_be32(&vr->status_cfg, status_cfg & 0x3f0000); 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 284 } 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 285 } 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 286 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 287 dev->field = 0; 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 288 } 95c5d605ca6fd6a drivers/media/video/fsl-viu.c Anatolij Gustschin 2010-07-02 289 :::::: The code at line 253 was first introduced by commit :::::: 95c5d605ca6fd6ab5ab0f6d097ff97d5aa2f9235 V4L/DVB: v4l: Add MPC5121e VIU video capture driver :::::: TO: Anatolij Gustschin <agust@xxxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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