On Tue, Nov 21, 2023 at 11:02 PM Ilya Leoshkevich <[email protected]> wrote: > > Architectures use assembly code to initialize ftrace_regs and call > ftrace_ops_list_func(). Therefore, from the KMSAN's point of view, > ftrace_regs is poisoned on ftrace_ops_list_func entry(). This causes > KMSAN warnings when running the ftrace testsuite.
I couldn't reproduce these warnings on x86, hope you really need this change on s390 :) > Fix by trusting the architecture-specific assembly code and always > unpoisoning ftrace_regs in ftrace_ops_list_func. > > Signed-off-by: Ilya Leoshkevich <[email protected]> Reviewed-by: Alexander Potapenko <[email protected]>
