git: a6ae5d3a2ed3 - stable/15 - truss: Properly display first argument to nmount

The branch stable/15 has been updated by des:

URL: https://cgit.FreeBSD.org/src/commit/?id=a6ae5d3a2ed313eee8aabece5c8d8347f4db7baf

commit a6ae5d3a2ed313eee8aabece5c8d8347f4db7baf
Author:     Tiago Gasiba <tiga@FreeBSD.org>
AuthorDate: 2025-10-29 20:09:39 +0000
Commit:     Dag-Erling Smørgrav <des@FreeBSD.org>
CommitDate: 2025-11-05 13:54:57 +0000

    truss: Properly display first argument to nmount
    
    The first argument to nmount(2) is an nvlist in the form of an iovec,
    which truss already knows how to decode.  Set the correct flag so
    this happens automatically.
    
    MFC after:      1 week
    PR:             290667
    
    (cherry picked from commit b9f848ecbafce4e56ba9c8b7993b85347e83484a)
---
 usr.bin/truss/syscalls.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/usr.bin/truss/syscalls.c b/usr.bin/truss/syscalls.c
index 656d642e1f19..7b299bd2e1ff 100644
--- a/usr.bin/truss/syscalls.c
+++ b/usr.bin/truss/syscalls.c
@@ -403,7 +403,7 @@ static const struct syscall_decode decoded_syscalls[] = {
 	{ .name = "nanosleep", .ret_type = 1, .nargs = 1,
 	  .args = { { Timespec, 0 } } },
 	{ .name = "nmount", .ret_type = 1, .nargs = 3,
-	  .args = { { Ptr, 0 }, { UInt, 1 }, { Mountflags, 2 } } },
+	  .args = { { Iovec | IN, 0 }, { UInt, 1 }, { Mountflags, 2 } } },
 	{ .name = "open", .ret_type = 1, .nargs = 3,
 	  .args = { { Name | IN, 0 }, { Open, 1 }, { Octal, 2 } } },
 	{ .name = "openat", .ret_type = 1, .nargs = 4,