linux-next: build failure after merge of the net-next tree

Stephen Rothwell
2026-01-13T06:16:37Z

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Hi all,

After merging the net-next tree, today's linux-next build (powerpc
allyesconfig) failed like this:

drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c: In function 'bnxt_ptp_init':
drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:1141:13: error: implicit declaration of function 'boot_cpu_has'; did you mean 'boot_cpu_init'? [-Wimplicit-function-declaration]
1141 | boot_cpu_has(X86_FEATURE_ART))
| ^~~~~~~~~~~~
| boot_cpu_init
drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:1141:26: error: 'X86_FEATURE_ART' undeclared (first use in this function); did you mean 'X86_FEATURE_ANY'?
1141 | boot_cpu_has(X86_FEATURE_ART))
| ^~~~~~~~~~~~~~~
| X86_FEATURE_ANY
drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c:1141:26: note: each undeclared identifier is reported only once for each function it appears in

Caused by commit

c470195b989f ("bnxt_en: Add PTP .getcrosststamp() interface to get device/host times")

boot_cpu_has() only exists for X86 ...

I have applied the folloring hack for today:

From: Stephen Rothwell <sfr@canb.auug.org.au>
Date: Tue, 13 Jan 2026 16:51:58 +1100
Subject: [PATCH] fix up for "bnxt_en: Add PTP .getcrosststamp() interface to
get device/host times"

Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
---
drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c
index 75ad385f5f79..20f5a9f38fee 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.c
@@ -882,6 +882,7 @@ void bnxt_tx_ts_cmp(struct bnxt *bp, struct bnxt_napi *bnapi,
}
}

+#ifdef X86_FEATURE_ART
static int bnxt_phc_get_syncdevicetime(ktime_t *device,
struct system_counterval_t *system,
void *ctx)
@@ -924,6 +925,7 @@ static int bnxt_ptp_getcrosststamp(struct ptp_clock_info *ptp_info,
return get_device_system_crosststamp(bnxt_phc_get_syncdevicetime,
ptp, NULL, xtstamp);
}
+#endif

static const struct ptp_clock_info bnxt_ptp_caps = {
.owner = THIS_MODULE,
@@ -1137,9 +1139,11 @@ int bnxt_ptp_init(struct bnxt *bp)
if (bnxt_ptp_pps_init(bp))
netdev_err(bp->dev, "1pps not initialized, continuing without 1pps support\n");
}
+#ifdef X86_FEATURE_ART
if ((bp->fw_cap & BNXT_FW_CAP_PTP_PTM) && pcie_ptm_enabled(bp->pdev) &&
boot_cpu_has(X86_FEATURE_ART))
ptp->ptp_info.getcrosststamp = bnxt_ptp_getcrosststamp;
+#endif

ptp->ptp_clock = ptp_clock_register(&ptp->ptp_info, &bp->pdev->dev);
if (IS_ERR(ptp->ptp_clock)) {
--
2.52.0

--
Cheers,
Stephen Rothwell

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