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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Tue Sep 29, 2026 at 10:56 AM BST, FUJITA Tomonori wrote: > From: FUJITA Tomonori > > Fix the following build error on 32-bit ARM with COMPILE_TEST: > > ERROR: modpost: drivers/pwm/pwm_th1520.ko: symbol '__aeabi_uldivmod' undefined! > > The driver divides u64 values when it converts between nanoseconds and > clock cycles. On 32-bit ARM, these divisions are compiled to calls to > __aeabi_uldivmod, which the kernel does not provide. > > he TH1520 is a 64-bit RISC-V SoC, so the driver is only used on > 64-bit kernels. There is no point in compile testing it on 32-bit. > Limit COMPILE_TEST to 64BIT instead of changing the arithmetic to use > the div64 helpers. > > Fixes: 3c180003dffb ("pwm: th1520: Fix missing Kconfig dependencies") > Signed-off-by: FUJITA Tomonori Reviewed-by: Gary Guo > --- > drivers/pwm/Kconfig | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv