git: 853cd8723494 - main - arm64: Clean up usage of the dtrace invop handler

The branch main has been updated by markj:

URL: https://cgit.FreeBSD.org/src/commit/?id=853cd8723494ccc2e972aaa09e7d04ede1508c95

commit 853cd8723494ccc2e972aaa09e7d04ede1508c95
Author:     Mark Johnston <markj@FreeBSD.org>
AuthorDate: 2025-01-25 16:17:03 +0000
Commit:     Mark Johnston <markj@FreeBSD.org>
CommitDate: 2025-01-25 16:17:03 +0000

    arm64: Clean up usage of the dtrace invop handler
    
    - Don't consume the breakpoint if all invop handlers returned a non-zero
      value.
    - Fix style nits.
    
    MFC after:      2 weeks
    Sponsored by:   Innovate UK
---
 sys/arm64/arm64/trap.c | 7 +++----
 1 file changed, 3 insertions(+), 4 deletions(-)

diff --git a/sys/arm64/arm64/trap.c b/sys/arm64/arm64/trap.c
index 544189964ef0..d612905b77c8 100644
--- a/sys/arm64/arm64/trap.c
+++ b/sys/arm64/arm64/trap.c
@@ -548,11 +548,10 @@ do_el1h_sync(struct thread *td, struct trapframe *frame)
 		break;
 	case EXCP_BRK:
 #ifdef KDTRACE_HOOKS
-		if ((esr & ESR_ELx_ISS_MASK) == 0x40d && \
-		    dtrace_invop_jump_addr != 0) {
-			dtrace_invop_jump_addr(frame);
+		if ((esr & ESR_ELx_ISS_MASK) == 0x40d /* BRK_IMM16_VAL */ &&
+		    dtrace_invop_jump_addr != NULL &&
+		    dtrace_invop_jump_addr(frame) == 0)
 			break;
-		}
 #endif
 #ifdef KDB
 		kdb_trap(exception, 0, frame);