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gve: Implement settime64 with -EOPNOTSUPP

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ptp_clock_settime() assumes every ptp_clock has implemented settime64().
Stub it with -EOPNOTSUPP to prevent a NULL dereference.

Fixes: acd1638052 ("gve: Add initial PTP device support")
Reported-by: syzbot+a546141ca6d53b90aba3@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=a546141ca6d53b90aba3
Signed-off-by: Tim Hostetler <thostet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Signed-off-by: Joshua Washington <joshwash@google.com>
Link: https://patch.msgid.link/20251029184555.3852952-3-joshwash@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Tim Hostetler
2025-10-29 11:45:40 -07:00
committed by Jakub Kicinski
parent 6ab753b5d8
commit 329d050bbe
1 changed files with 7 additions and 0 deletions
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7
drivers/net/ethernet/google/gve/gve_ptp.c
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@@ -33,6 +33,12 @@ static int gve_ptp_gettimex64(struct ptp_clock_info *info,
return -EOPNOTSUPP;
}
static int gve_ptp_settime64(struct ptp_clock_info *info,
const struct timespec64 *ts)
{
return -EOPNOTSUPP;
}
static long gve_ptp_do_aux_work(struct ptp_clock_info *info)
{
const struct gve_ptp *ptp = container_of(info, struct gve_ptp, info);
@@ -55,6 +61,7 @@ static const struct ptp_clock_info gve_ptp_caps = {
.owner = THIS_MODULE,
.name = "gve clock",
.gettimex64 = gve_ptp_gettimex64,
.settime64 = gve_ptp_settime64,
.do_aux_work = gve_ptp_do_aux_work,
};