Hi Daehwan, Thank you for the patch! Yet something to improve: [auto build test ERROR on next-20220318] [also build test ERROR on v5.17] [cannot apply to usb/usb-testing krzk/for-next char-misc/char-misc-testing v5.17 v5.17-rc8 v5.17-rc7] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Daehwan-Jung/usb-host-export-symbols-for-xhci-hooks-usage/20220321-180046 base: 6d72dda014a4753974eb08950089ddf71fec4f60 config: ia64-allmodconfig (https://download.01.org/0day-ci/archive/20220322/202203220027.WbsbZkyk-lkp@xxxxxxxxx/config) compiler: ia64-linux-gcc (GCC) 11.2.0 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://github.com/0day-ci/linux/commit/517a7258fc6a2861b66ae9893b39d8bd4d6739e7 git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Daehwan-Jung/usb-host-export-symbols-for-xhci-hooks-usage/20220321-180046 git checkout 517a7258fc6a2861b66ae9893b39d8bd4d6739e7 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/usb/host/ If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All error/warnings (new ones prefixed by >>): drivers/usb/host/xhci-exynos.c: In function 'xhci_priv_exynos_setup': >> drivers/usb/host/xhci-exynos.c:55:18: error: 'struct xhci_plat_priv' has no member named 'plat_setup' 55 | if (!priv->plat_setup) | ^~ drivers/usb/host/xhci-exynos.c:58:20: error: 'struct xhci_plat_priv' has no member named 'plat_setup' 58 | return priv->plat_setup(hcd); | ^~ drivers/usb/host/xhci-exynos.c: In function 'xhci_exynos_address_device': >> drivers/usb/host/xhci-exynos.c:260:26: warning: variable 'xhci' set but not used [-Wunused-but-set-variable] 260 | struct xhci_hcd *xhci; | ^~~~ drivers/usb/host/xhci-exynos.c: In function 'xhci_exynos_parse_endpoint': >> drivers/usb/host/xhci-exynos.c:276:29: warning: variable 'ep_ctx' set but not used [-Wunused-but-set-variable] 276 | struct xhci_ep_ctx *ep_ctx; | ^~~~~~ drivers/usb/host/xhci-exynos.c: In function 'xhci_exynos_set_hc_event_deq_audio': >> drivers/usb/host/xhci-exynos.c:370:20: warning: variable 'deq' set but not used [-Wunused-but-set-variable] 370 | dma_addr_t deq; | ^~~ drivers/usb/host/xhci-exynos.c: At top level: >> drivers/usb/host/xhci-exynos.c:576:10: error: 'const struct xhci_plat_priv' has no member named 'plat_setup' 576 | .plat_setup = xhci_mvebu_a3700_plat_setup, | ^~~~~~~~~~ >> drivers/usb/host/xhci-exynos.c:576:23: error: 'xhci_mvebu_a3700_plat_setup' undeclared here (not in a function); did you mean 'xhci_mvebu_a3700_init_quirk'? 576 | .plat_setup = xhci_mvebu_a3700_plat_setup, | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ | xhci_mvebu_a3700_init_quirk drivers/usb/host/xhci-exynos.c: In function 'xhci_priv_exynos_setup': drivers/usb/host/xhci-exynos.c:59:1: error: control reaches end of non-void function [-Werror=return-type] 59 | } | ^ At top level: drivers/usb/host/xhci-exynos.c:588:36: warning: 'xhci_plat_brcm' defined but not used [-Wunused-const-variable=] 588 | static const struct xhci_plat_priv xhci_plat_brcm = { | ^~~~~~~~~~~~~~ drivers/usb/host/xhci-exynos.c:584:36: warning: 'xhci_plat_renesas_rcar_gen3' defined but not used [-Wunused-const-variable=] 584 | static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/usb/host/xhci-exynos.c:580:36: warning: 'xhci_plat_renesas_rcar_gen2' defined but not used [-Wunused-const-variable=] 580 | static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen2 = { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/usb/host/xhci-exynos.c:575:36: warning: 'xhci_plat_marvell_armada3700' defined but not used [-Wunused-const-variable=] 575 | static const struct xhci_plat_priv xhci_plat_marvell_armada3700 = { | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/usb/host/xhci-exynos.c:571:36: warning: 'xhci_plat_marvell_armada' defined but not used [-Wunused-const-variable=] 571 | static const struct xhci_plat_priv xhci_plat_marvell_armada = { | ^~~~~~~~~~~~~~~~~~~~~~~~ cc1: some warnings being treated as errors vim +55 drivers/usb/host/xhci-exynos.c 50 51 static int xhci_priv_exynos_setup(struct usb_hcd *hcd) 52 { 53 struct xhci_plat_priv *priv = hcd_to_xhci_priv(hcd); 54 > 55 if (!priv->plat_setup) 56 return 0; 57 58 return priv->plat_setup(hcd); 59 } 60 -- 0-DAY CI Kernel Test Service https://01.org/lkp