Switched to a new branch '20230516193549.544673-1-arnd@kernel.org' Applying: x86: move prepare_ftrace_return prototype to header error: sha1 information is lacking or useless (arch/x86/include/asm/ftrace.h). error: could not build fake ancestor hint: Use 'git am --show-current-patch=diff' to see the failed patch Patch failed at 0001 x86: move prepare_ftrace_return prototype to header When you have resolved this problem, run "git am --continue". If you prefer to skip this patch, run "git am --skip" instead. To restore the original branch and stop patching, run "git am --abort".