linux-kernel - [PATCH net-next v2 09/12] net: stmmac: replace the ext_snapshot

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Message-Id: <20230623100845.114085-10-brgl@bgdev.pl>
Date:   Fri, 23 Jun 2023 12:08:42 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Vinod Koul <vkoul@...nel.org>,
        Bhupesh Sharma <bhupesh.sharma@...aro.org>,
        Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Andrew Halaney <ahalaney@...hat.com>
Cc:     netdev@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH net-next v2 09/12] net: stmmac: replace the ext_snapshot_en field with a flag

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>

Drop the boolean field of the plat_stmmacenet_data structure in favor of a
simple bitfield flag.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c     | 2 +-
 drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c | 2 +-
 drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c      | 5 ++++-
 include/linux/stmmac.h                                | 2 +-
 4 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index d8bcf9452197..a3d0da4e9e91 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -326,7 +326,7 @@ static int intel_crosststamp(ktime_t *device,
 	/* Both internal crosstimestamping and external triggered event
 	 * timestamping cannot be run concurrently.
 	 */
-	if (priv->plat->ext_snapshot_en)
+	if (priv->plat->flags & STMMAC_FLAG_EXT_SNAPSHOT_EN)
 		return -EBUSY;
 
 	priv->plat->int_snapshot_en = 1;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
index 8b50f03056b7..afd81aac6644 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
@@ -195,7 +195,7 @@ static void timestamp_interrupt(struct stmmac_priv *priv)
 	 */
 	ts_status = readl(priv->ioaddr + GMAC_TIMESTAMP_STATUS);
 
-	if (!priv->plat->ext_snapshot_en)
+	if (priv->plat->flags & STMMAC_FLAG_EXT_SNAPSHOT_EN)
 		return;
 
 	num_snapshot = (ts_status & GMAC_TIMESTAMP_ATSNS_MASK) >>
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
index b4388ca8d211..3d7825cb30bb 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
@@ -192,7 +192,10 @@ static int stmmac_enable(struct ptp_clock_info *ptp,
 		write_unlock_irqrestore(&priv->ptp_lock, flags);
 		break;
 	case PTP_CLK_REQ_EXTTS:
-		priv->plat->ext_snapshot_en = on;
+		if (on)
+			priv->plat->flags |= STMMAC_FLAG_EXT_SNAPSHOT_EN;
+		else
+			priv->plat->flags &= ~STMMAC_FLAG_EXT_SNAPSHOT_EN;
 		mutex_lock(&priv->aux_ts_lock);
 		acr_value = readl(ptpaddr + PTP_ACR);
 		acr_value &= ~PTP_ACR_MASK;
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 3365b8071686..0a77e8b05d3a 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -212,6 +212,7 @@ struct dwmac4_addrs {
 #define STMMAC_FLAG_SERDES_UP_AFTER_PHY_LINKUP	BIT(5)
 #define STMMAC_FLAG_VLAN_FAIL_Q_EN		BIT(6)
 #define STMMAC_FLAG_MULTI_MSI_EN		BIT(7)
+#define STMMAC_FLAG_EXT_SNAPSHOT_EN		BIT(8)
 
 struct plat_stmmacenet_data {
 	int bus_id;
@@ -286,7 +287,6 @@ struct plat_stmmacenet_data {
 	int int_snapshot_num;
 	int ext_snapshot_num;
 	bool int_snapshot_en;
-	bool ext_snapshot_en;
 	int msi_mac_vec;
 	int msi_wol_vec;
 	int msi_lpi_vec;
-- 
2.39.2