The kbuild test robot reported the following warning on sparc64: kernel/jump_label.c: In function '__jump_label_update': kernel/jump_label.c:376:51: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] WARN_ONCE(1, "can't patch jump_label at %pS", (void *)entry->code);
On sparc64, the jump_label entry->code field is of type u32, but pointers are 64-bit. Silence the warning by casting entry->code to an unsigned long before casting it to a pointer. This is also what the sparc jump label code does. Reported-by: kbuild test robot <fengguang...@intel.com> Fixes: dc1dd184c2f0 ("jump_label: Warn on failed jump_label patching attempt") Signed-off-by: Josh Poimboeuf <jpoim...@redhat.com> --- kernel/jump_label.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/jump_label.c b/kernel/jump_label.c index 52a0a7af8640..e7214093dcd1 100644 --- a/kernel/jump_label.c +++ b/kernel/jump_label.c @@ -373,7 +373,8 @@ static void __jump_label_update(struct static_key *key, if (kernel_text_address(entry->code)) arch_jump_label_transform(entry, jump_label_type(entry)); else - WARN_ONCE(1, "can't patch jump_label at %pS", (void *)entry->code); + WARN_ONCE(1, "can't patch jump_label at %pS", + (void *)(unsigned long)entry->code); } } } -- 2.14.3