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authorBreno Leitao <leitao@debian.org>2026-08-05 07:52:36 -0700
committerTejun Heo <tj@kernel.org>2026-08-10 11:47:20 -1000
commita5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656 (patch)
tree39f5b258386e1127d253d293194e9a2991bf3c34 /drivers/ptp/ptp_fc3.h
downloadlinux-stable-a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656.tar.gz
linux-stable-a5bde5d8fde8a8cb28e59a672d5ddc5b9c1e7656.zip
workqueue: skip the node_nr_active update for non-unbound workqueuesgrafted
apply_wqattrs_commit() updates node_nr_active->max unconditionally. wq->node_nr_active[] is only allocated for unbound workqueues, so guard the call before per-cpu workqueues start using this path. No functional change: only unbound workqueues reach apply_wqattrs_*() today. Signed-off-by: Breno Leitao <leitao@debian.org> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ptp/ptp_fc3.h')
-rw-r--r--drivers/ptp/ptp_fc3.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/ptp/ptp_fc3.h b/drivers/ptp/ptp_fc3.h
new file mode 100644
index 000000000..897101579
--- /dev/null
+++ b/drivers/ptp/ptp_fc3.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * PTP hardware clock driver for the FemtoClock3 family of timing and
+ * synchronization devices.
+ *
+ * Copyright (C) 2023 Integrated Device Technology, Inc., a Renesas Company.
+ */
+#ifndef PTP_IDTFC3_H
+#define PTP_IDTFC3_H
+
+#include <linux/ktime.h>
+#include <linux/ptp_clock.h>
+#include <linux/regmap.h>
+
+#define FW_FILENAME "idtfc3.bin"
+
+#define MAX_FFO_PPB (244000)
+#define TDC_GET_PERIOD (10)
+
+struct idtfc3 {
+ struct ptp_clock_info caps;
+ struct ptp_clock *ptp_clock;
+ struct device *dev;
+ /* Mutex to protect operations from being interrupted */
+ struct mutex *lock;
+ struct device *mfd;
+ struct regmap *regmap;
+ struct idtfc3_hw_param hw_param;
+ u32 sub_sync_count;
+ u32 ns_per_sync;
+ int tdc_offset_sign;
+ u64 tdc_apll_freq;
+ u32 time_ref_freq;
+ u16 fod_n;
+ u8 lpf_mode;
+ /* Time counter */
+ u32 last_counter;
+ s64 ns;
+ u32 ns_per_counter;
+ u32 tc_update_period;
+ u32 tc_write_timeout;
+ s64 tod_write_overhead;
+};
+
+#endif /* PTP_IDTFC3_H */