netdev - [PATCH net 2/4] ice: dpll: fix check for dpll input priority range

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Date: Mon, 13 Nov 2023 15:05:47 -0800
From: Tony Nguyen <anthony.l.nguyen@...el.com>
To: davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	netdev@...r.kernel.org
Cc: Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>,
	anthony.l.nguyen@...el.com,
	vadim.fedorenko@...ux.dev,
	jiri@...nulli.us,
	Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	Jacob Keller <jacob.e.keller@...el.com>,
	Sunitha Mekala <sunithax.d.mekala@...el.com>
Subject: [PATCH net 2/4] ice: dpll: fix check for dpll input priority range

From: Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>

Supported priority value for input pins may differ with regard of NIC
firmware version. E810T NICs with 3.20/4.00 FW versions would accept
priority range 0-31, where firmware 4.10+ would support the range 0-9
and extra value of 255.
Remove the in-range check as the driver has no information on supported
values from the running firmware, let firmware decide if given value is
correct and return extack error if the value is not supported.

Fixes: d7999f5ea64b ("ice: implement dpll interface to control cgu")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@...el.com>
Reviewed-by: Jacob Keller <jacob.e.keller@...el.com>
Signed-off-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@...el.com>
Tested-by: Sunitha Mekala <sunithax.d.mekala@...el.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@...el.com>
---
 drivers/net/ethernet/intel/ice/ice_dpll.c | 6 ------
 drivers/net/ethernet/intel/ice/ice_dpll.h | 1 -
 2 files changed, 7 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_dpll.c b/drivers/net/ethernet/intel/ice/ice_dpll.c
index 607f534055b6..831ba6683962 100644
--- a/drivers/net/ethernet/intel/ice/ice_dpll.c
+++ b/drivers/net/ethernet/intel/ice/ice_dpll.c
@@ -815,12 +815,6 @@ ice_dpll_input_prio_set(const struct dpll_pin *pin, void *pin_priv,
 	struct ice_pf *pf = d->pf;
 	int ret;
 
-	if (prio > ICE_DPLL_PRIO_MAX) {
-		NL_SET_ERR_MSG_FMT(extack, "prio out of supported range 0-%d",
-				   ICE_DPLL_PRIO_MAX);
-		return -EINVAL;
-	}
-
 	mutex_lock(&pf->dplls.lock);
 	ret = ice_dpll_hw_input_prio_set(pf, d, p, prio, extack);
 	mutex_unlock(&pf->dplls.lock);
diff --git a/drivers/net/ethernet/intel/ice/ice_dpll.h b/drivers/net/ethernet/intel/ice/ice_dpll.h
index bb32b6d88373..93172e93995b 100644
--- a/drivers/net/ethernet/intel/ice/ice_dpll.h
+++ b/drivers/net/ethernet/intel/ice/ice_dpll.h
@@ -6,7 +6,6 @@
 
 #include "ice.h"
 
-#define ICE_DPLL_PRIO_MAX	0xF
 #define ICE_DPLL_RCLK_NUM_MAX	4
 
 /** ice_dpll_pin - store info about pins
-- 
2.41.0