git: 5ec268d09a2e - main - dev/psci: Use the correct SMCCC TRNG field

[Andrew Turner]

The branch main has been updated by andrew:

URL: 
https://cgit.FreeBSD.org/src/commit/?id=5ec268d09a2e33736339bb43dac5062e64b6af45

commit 5ec268d09a2e33736339bb43dac5062e64b6af45
Author:     Andrew Turner <and...@freebsd.org>
AuthorDate: 2025-06-24 16:48:55 +0000
Commit:     Andrew Turner <and...@freebsd.org>
CommitDate: 2025-06-24 17:45:42 +0000

    dev/psci: Use the correct SMCCC TRNG field
    
    The TRNG service will return random data in x3. Use the correct field
    when filling the buffer in trng_read.
    
    This driver has not been in any release, so no security advisory is
    needed.
    
    Reviewed by:    bz
    Sponsored by:   Arm Ltd
    Differential Revision:  https://reviews.freebsd.org/D50979
---
 sys/dev/psci/smccc_trng.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sys/dev/psci/smccc_trng.c b/sys/dev/psci/smccc_trng.c
index bf8c95a81c83..ab98837d3841 100644
--- a/sys/dev/psci/smccc_trng.c
+++ b/sys/dev/psci/smccc_trng.c
@@ -122,7 +122,7 @@ trng_read(void *buf, unsigned usz)
        if (ret < 0)
                return (0);
 
-       memcpy(buf, &res.a0, len);
+       memcpy(buf, &res.a3, len);
        return (len);
 }