On 24/12/2020 16:49, Julien Grall wrote: > From: Julien Grall <jgr...@amazon.com> > > Clang 11 will throw the following error: > > smmu.c:2284:18: error: cast to smaller integer type 'enum > arm_smmu_arch_version' from 'const void *' > [-Werror,-Wvoid-pointer-to-enum-cast] > smmu->version = (enum arm_smmu_arch_version)of_id->data; > ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ > > The error can be prevented by introduce static variable for each SMMU > version and store a pointer for each of them. > > Signed-off-by: Julien Grall <jgr...@amazon.com>
You can also fix this by casting through (uintptr_t) instead of (enum arm_smmu_arch_version), which wouldn't involve an extra indirection. Alternatively, you could modify dt_device_match to union void *data with uintptr_t val for when you want to actually pass non-pointer data. ~Andrew
