HI ! devm_kstrdup_const() will check if the pointer passed in is in the RO data section with is_kernel_rodata() But this is simply a check for address range - so how can one find out at code level reliably what will be in that RO data - or is that in principle not possible ? The background of this question is that there are cases of devm_kstrdup() that do not check the return value which can be NULL and are not safe - but rather than simply checking the return some look like they could be converted to devm_kstrdup_const() which would solve the issue in a better way e.g. drivers/hwtracing/coresight/of_coresight.c:of_coresight_parse_endpoint() is such a case - so is there are reliable way to assure that some object is in the RO section ? or must one simply assume that it could be RW ? thx! hofrat