[tip: objtool/core] objtool: Remove "ANNOTATE_NOENDBR on ENDBR" warning

[tip-bot2 for Josh Poimboeuf]

The following commit has been merged into the objtool/core branch of tip:

Commit-ID:     3c6f3900808c483b0bbb2c351f995c7b880dae14
Gitweb:        https://git.kernel.org/tip/3c6f3900808c483b0bbb2c351f995c7b880dae14
Author:        Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
AuthorDate:    Thu, 18 Aug 2022 09:26:57 -07:00
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Fri, 19 Aug 2022 19:47:57 +02:00

objtool: Remove "ANNOTATE_NOENDBR on ENDBR" warning

This warning isn't very useful: why would you put ANNOTATE_NOENDBR on
ENDBR, and if you did, what's the harm?

And thus far it's only found one non-bug, where the
'__end_entry_SYSENTER_compat' label happens to land on the ENDBR from
entry_SYSCALL_compat:

  vmlinux.o: warning: objtool: entry_SYSCALL_compat+0x0: ANNOTATE_NOENDBR on ENDBR

.. which is fine.  Just remove the warning.

Reported-by: kernel test robot <lkp@xxxxxxxxx>
Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/142341a5dafdfc788e4c95b9e226a6eefc9b626e.1660839773.git.jpoimboe@xxxxxxxxxx
---
 tools/objtool/check.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index b012d98..8b8c8f7 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -2102,9 +2102,6 @@ static int read_noendbr_hints(struct objtool_file *file)
 			return -1;
 		}
 
-		if (insn->type == INSN_ENDBR)
-			WARN_FUNC("ANNOTATE_NOENDBR on ENDBR", insn->sec, insn->offset);
-
 		insn->noendbr = 1;
 	}