git: 78962f9b66d1 - main - amd64 FRED: normalize the user-provided 'fred' knob value

The branch main has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=78962f9b66d1f84b957ddac3f528f184ba1f4739

commit 78962f9b66d1f84b957ddac3f528f184ba1f4739
Author:     Konstantin Belousov <kib@FreeBSD.org>
AuthorDate: 2026-10-29 01:26:04 +0000
Commit:     Konstantin Belousov <kib@FreeBSD.org>
CommitDate: 2026-10-29 01:33:47 +0000

    amd64 FRED: normalize the user-provided 'fred' knob value
    
    Assembler accesses 'fred' as byte, ensure that any non-zero
    user-provided value works.  This is pure cosmetics.
    
    Sponsored by:   The FreeBSD Foundation
    MFC after:      1 week
---
 sys/amd64/amd64/machdep.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sys/amd64/amd64/machdep.c b/sys/amd64/amd64/machdep.c
index b5a06efd37e6..a714c4e52b9b 100644
--- a/sys/amd64/amd64/machdep.c
+++ b/sys/amd64/amd64/machdep.c
@@ -1398,6 +1398,8 @@ hammer_time(u_int64_t modulep, u_int64_t physfree)
 	    (cpu_stdext_feature & CPUID_STDEXT_FSGSBASE) != 0 && !pti) {
 		fred = 1;
 		TUNABLE_INT_FETCH("hw.fred", &fred);
+		if (fred != 0)
+			fred = 1;
 	}
 
 	sched_instance_select();