6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jan Kiszka jan.kiszka@siemens.com
commit 4ebc417ef9cb34010a71270421fe320ec5d88aa2 upstream.
At least recent gdb releases (seen with 14.2) return SP_EL0 as signed long which lets the right-shift always return 0.
Link: https://lkml.kernel.org/r/dcd2fabc-9131-4b48-8419-6444e2d67454@siemens.com Signed-off-by: Jan Kiszka jan.kiszka@siemens.com Cc: Barry Song baohua@kernel.org Cc: Kieran Bingham kbingham@kernel.org Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- scripts/gdb/linux/cpus.py | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/scripts/gdb/linux/cpus.py +++ b/scripts/gdb/linux/cpus.py @@ -172,7 +172,7 @@ def get_current_task(cpu): var_ptr = gdb.parse_and_eval("&pcpu_hot.current_task") return per_cpu(var_ptr, cpu).dereference() elif utils.is_target_arch("aarch64"): - current_task_addr = gdb.parse_and_eval("$SP_EL0") + current_task_addr = gdb.parse_and_eval("(unsigned long)$SP_EL0") if (current_task_addr >> 63) != 0: current_task = current_task_addr.cast(task_ptr_type) return current_task.dereference()