On Wed, May 21, 2025 at 4:10 AM Mark Rutland <[email protected]> wrote: > > If kretprobe_find_ret_addr() fails to find the original return address, > it returns 0. Check for this case so that a reliable stacktrace won't > silently ignore it. > > Signed-off-by: Mark Rutland <[email protected]> > Cc: Andrea della Porta <[email protected]> > Cc: Breno Leitao <[email protected]> > Cc: Catalin Marinas <[email protected]> > Cc: Josh Poimboeuf <[email protected]> > Cc: Miroslav Benes <[email protected]> > Cc: Petr Mladek <[email protected]> > Cc: Song Liu <[email protected]> > Cc: Will Deacon <[email protected]>
Reviewed-and-tested-by: Song Liu <[email protected]> Tested with livepatch changes [1][2] and modified kpatch framework. Thanks, Song [1] https://lore.kernel.org/live-patching/[email protected]/ [2] https://lore.kernel.org/linux-arm-kernel/[email protected]/
