On Thu, Jan 19, 2017 at 06:32:55PM +0800, Fu Wei wrote: > On 19 January 2017 at 17:11, Hanjun Guo <hanjun.guo@xxxxxxxxxx> wrote: > > On 2017/1/18 21:25, fu.wei@xxxxxxxxxx wrote: > >> From: Fu Wei <fu.wei@xxxxxxxxxx> > >> + else if (!gtdt->platform_timer_count) > >> + pr_debug("No Platform Timer.\n"); > >> + else > >> + timer_count = gtdt->platform_timer_count; > >> + > >> + if (timer_count) { > >> + platform_timer = (void *)gtdt + > >> gtdt->platform_timer_offset; > >> + if (platform_timer < (void *)table + > >> + sizeof(struct acpi_table_gtdt)) { > >> + pr_err(FW_BUG "invalid timer data.\n"); > > > > > > It's ok but I didn't see other ACPI tables parsing did this check, > > maybe we can just remove it :) > > here, I want to make sure the FW is valid. > Once there is a FW bug, we could just return with error. :-) Yes, please keep the check! If anything, it would be nicer for the other ACPI code to verify things a little more stringently. Thanks, Mark. -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html