On Tue, Jul 22, 2025 at 1:54 PM Sami Tolvanen <samitolvanen@xxxxxxxxxx> wrote: > > From: Puranjay Mohan <puranjay12@xxxxxxxxx> > > Currently, bpf_dispatcher_*_func() is marked with `__nocfi` therefore > calling BPF programs from this interface doesn't cause CFI warnings. > > When BPF programs are called directly from C: from BPF helpers or > struct_ops, CFI warnings are generated. > > Implement proper CFI prologues for the BPF programs and callbacks and > drop __nocfi for arm64. Fix the trampoline generation code to emit kCFI > prologue when a struct_ops trampoline is being prepared. > > Signed-off-by: Puranjay Mohan <puranjay12@xxxxxxxxx> > Co-developed-by: Maxwell Bland <mbland@xxxxxxxxxxxx> > Signed-off-by: Maxwell Bland <mbland@xxxxxxxxxxxx> > Co-developed-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx> > Signed-off-by: Sami Tolvanen <samitolvanen@xxxxxxxxxx> > Tested-by: Dao Huang <huangdao1@xxxxxxxx> > Acked-by: Will Deacon <will@xxxxxxxxxx> > --- > arch/arm64/include/asm/cfi.h | 7 +++++++ > arch/arm64/net/bpf_jit_comp.c | 30 +++++++++++++++++++++++++++--- Unfortunately there is a conflict. Please respin. -- pw-bot: cr
