When building with clang toolchain and arm64-randconfig-r015-20230712 kernel test robot reports the below warning. drivers/pinctrl/qcom/pinctrl-ipq5018.c:244:27: warning: unused variable '_groups' [-Wunused-const-variable] static const char * const _groups[] = { ^ 1 warning generated. static const char * const _groups[] = { "gpio0", "gpio1", "gpio2", "gpio3", "gpio4", "gpio5", "gpio6", "gpio7", "gpio8", "gpio9", "gpio10", "gpio11", "gpio12", "gpio13", "gpio14", "gpio15", "gpio16", "gpio17", "gpio18", "gpio19", "gpio20", "gpio21", "gpio22", "gpio23", "gpio24", "gpio25", "gpio26", "gpio27", "gpio28", "gpio29", "gpio30", "gpio31", "gpio32", "gpio33", "gpio34", "gpio35", "gpio36", "gpio37", "gpio38", "gpio39", "gpio40", "gpio41", "gpio42", "gpio43", "gpio44", "gpio45", "gpio46", }; Fixing it by removing the variable. Reported-by: kernel test robot <lkp@xxxxxxxxx> Closes: https://lore.kernel.org/oe-kbuild-all/202307120814.vWPY6URk-lkp@xxxxxxxxx/ Fixes: 725d1c891658 ("pinctrl: qcom: Add IPQ5018 pinctrl driver") Signed-off-by: Sricharan Ramabadhran <quic_srichara@xxxxxxxxxxx> --- drivers/pinctrl/qcom/pinctrl-ipq5018.c | 10 ---------- 1 file changed, 10 deletions(-) diff --git a/drivers/pinctrl/qcom/pinctrl-ipq5018.c b/drivers/pinctrl/qcom/pinctrl-ipq5018.c index ed58f75..e2951f8 100644 --- a/drivers/pinctrl/qcom/pinctrl-ipq5018.c +++ b/drivers/pinctrl/qcom/pinctrl-ipq5018.c @@ -241,16 +241,6 @@ static const char * const atest_char_groups[] = { "gpio0", "gpio1", "gpio2", "gpio3", "gpio37", }; -static const char * const _groups[] = { - "gpio0", "gpio1", "gpio2", "gpio3", "gpio4", "gpio5", "gpio6", "gpio7", - "gpio8", "gpio9", "gpio10", "gpio11", "gpio12", "gpio13", "gpio14", - "gpio15", "gpio16", "gpio17", "gpio18", "gpio19", "gpio20", "gpio21", - "gpio22", "gpio23", "gpio24", "gpio25", "gpio26", "gpio27", "gpio28", - "gpio29", "gpio30", "gpio31", "gpio32", "gpio33", "gpio34", "gpio35", - "gpio36", "gpio37", "gpio38", "gpio39", "gpio40", "gpio41", "gpio42", - "gpio43", "gpio44", "gpio45", "gpio46", -}; - static const char * const wci_txd_groups[] = { "gpio0", "gpio1", "gpio2", "gpio3", "gpio42", "gpio43", "gpio44", "gpio45", -- 2.7.4