From: Thomas Gleixner <tglx@linutronix.de>

The core code provides a mechanism to convert the ART base clock to the
corresponding TSC value without requiring an architecture specific
function.

All what is required is to store the ART clocksoure ID and the cycles
value in the provided system_counterval structure.

Replace the direct conversion via convert_art_ns_to_tsc() by filling in
the required data.

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
---
 drivers/net/ethernet/intel/igc/igc_ptp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_ptp.c b/drivers/net/ethernet/intel/igc/igc_ptp.c
index 885faaa7b9de..39656489d73e 100644
--- a/drivers/net/ethernet/intel/igc/igc_ptp.c
+++ b/drivers/net/ethernet/intel/igc/igc_ptp.c
@@ -901,7 +901,11 @@ static bool igc_is_crosststamp_supported(struct igc_adapter *adapter)
 static struct system_counterval_t igc_device_tstamp_to_system(u64 tstamp)
 {
 #if IS_ENABLED(CONFIG_X86_TSC) && !defined(CONFIG_UML)
-	return convert_art_ns_to_tsc(tstamp);
+	return (struct system_counterval_t) {
+		.cs_id		= CSID_X86_ART,
+		.cycles		= tstamp,
+		.use_nsecs	= true,
+	};
 #else
 	return (struct system_counterval_t) { };
 #endif
-- 
2.35.3

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     fcb05911e5832364c5f154b519a471225b34855e
Gitweb:        https://git.kernel.org/tip/fcb05911e5832364c5f154b519a471225b34855e
Author:        Thomas Gleixner <tglx@linutronix.de>
AuthorDate:    Mon, 13 May 2024 16:08:05 +05:30
Committer:     Thomas Gleixner <tglx@linutronix.de>
CommitterDate: Mon, 03 Jun 2024 11:18:50 +02:00

igc: Remove convert_art_ns_to_tsc()

The core code now provides a mechanism to convert the ART base clock to the
corresponding TSC value without requiring an architecture specific
function.

Replace the direct conversion by filling in the required data.

No functional change intended.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Lakshmi Sowjanya D <lakshmi.sowjanya.d@intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20240513103813.5666-5-lakshmi.sowjanya.d@intel.com

---
 drivers/net/ethernet/intel/igc/igc_ptp.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_ptp.c b/drivers/net/ethernet/intel/igc/igc_ptp.c
index 1bb0262..946edba 100644
--- a/drivers/net/ethernet/intel/igc/igc_ptp.c
+++ b/drivers/net/ethernet/intel/igc/igc_ptp.c
@@ -938,7 +938,11 @@ static bool igc_is_crosststamp_supported(struct igc_adapter *adapter)
 static struct system_counterval_t igc_device_tstamp_to_system(u64 tstamp)
 {
 #if IS_ENABLED(CONFIG_X86_TSC) && !defined(CONFIG_UML)
-	return convert_art_ns_to_tsc(tstamp);
+	return (struct system_counterval_t) {
+		.cs_id		= CSID_X86_ART,
+		.cycles		= tstamp,
+		.use_nsecs	= true,
+	};
 #else
 	return (struct system_counterval_t) { };
 #endif