linux-kernel - [PATCH net-next 10/12] net: stmmac: replace the int_snapshot

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Message-Id: <20230621182558.544417-11-brgl@bgdev.pl>
Date:   Wed, 21 Jun 2023 20:25:56 +0200
From:   Bartosz Golaszewski <brgl@...ev.pl>
To:     Giuseppe Cavallaro <peppe.cavallaro@...com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose Abreu <joabreu@...opsys.com>,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Vinod Koul <vkoul@...nel.org>,
        Bhupesh Sharma <bhupesh.sharma@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Jernej Skrabec <jernej.skrabec@...il.com>,
        Samuel Holland <samuel@...lland.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Richard Cochran <richardcochran@...il.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
Cc:     netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-sunxi@...ts.linux.dev, linux-tegra@...r.kernel.org,
        linux-mediatek@...ts.infradead.org,
        Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: [PATCH net-next 10/12] net: stmmac: replace the int_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     | 10 +++++-----
 drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c |  2 +-
 include/linux/stmmac.h                                |  2 +-
 3 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index a3d0da4e9e91..f194a905d04f 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -329,7 +329,7 @@ static int intel_crosststamp(ktime_t *device,
 	if (priv->plat->flags & STMMAC_FLAG_EXT_SNAPSHOT_EN)
 		return -EBUSY;
 
-	priv->plat->int_snapshot_en = 1;
+	priv->plat->flags |= STMMAC_FLAG_INT_SNAPSHOT_EN;
 
 	mutex_lock(&priv->aux_ts_lock);
 	/* Enable Internal snapshot trigger */
@@ -350,7 +350,7 @@ static int intel_crosststamp(ktime_t *device,
 		break;
 	default:
 		mutex_unlock(&priv->aux_ts_lock);
-		priv->plat->int_snapshot_en = 0;
+		priv->plat->flags &= ~STMMAC_FLAG_INT_SNAPSHOT_EN;
 		return -EINVAL;
 	}
 	writel(acr_value, ptpaddr + PTP_ACR);
@@ -376,7 +376,7 @@ static int intel_crosststamp(ktime_t *device,
 	if (!wait_event_interruptible_timeout(priv->tstamp_busy_wait,
 					      stmmac_cross_ts_isr(priv),
 					      HZ / 100)) {
-		priv->plat->int_snapshot_en = 0;
+		priv->plat->flags &= ~STMMAC_FLAG_INT_SNAPSHOT_EN;
 		return -ETIMEDOUT;
 	}
 
@@ -395,7 +395,7 @@ static int intel_crosststamp(ktime_t *device,
 	}
 
 	system->cycles *= intel_priv->crossts_adj;
-	priv->plat->int_snapshot_en = 0;
+	priv->plat->flags &= ~STMMAC_FLAG_INT_SNAPSHOT_EN;
 
 	return 0;
 }
@@ -609,7 +609,7 @@ static int intel_mgbe_common_data(struct pci_dev *pdev,
 	plat->ext_snapshot_num = AUX_SNAPSHOT0;
 
 	plat->crosststamp = intel_crosststamp;
-	plat->int_snapshot_en = 0;
+	priv->plat->flags &= ~STMMAC_FLAG_INT_SNAPSHOT_EN;
 
 	/* Setup MSI vector offset specific to Intel mGbE controller */
 	plat->msi_mac_vec = 29;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
index afd81aac6644..fa2c3ba7e9fe 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_hwtstamp.c
@@ -180,7 +180,7 @@ static void timestamp_interrupt(struct stmmac_priv *priv)
 	u64 ptp_time;
 	int i;
 
-	if (priv->plat->int_snapshot_en) {
+	if (priv->plat->flags & STMMAC_FLAG_INT_SNAPSHOT_EN) {
 		wake_up(&priv->tstamp_busy_wait);
 		return;
 	}
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index 0a77e8b05d3a..47708ddd57fd 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -213,6 +213,7 @@ struct dwmac4_addrs {
 #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)
+#define STMMAC_FLAG_INT_SNAPSHOT_EN		BIT(9)
 
 struct plat_stmmacenet_data {
 	int bus_id;
@@ -286,7 +287,6 @@ struct plat_stmmacenet_data {
 	struct pci_dev *pdev;
 	int int_snapshot_num;
 	int ext_snapshot_num;
-	bool int_snapshot_en;
 	int msi_mac_vec;
 	int msi_wol_vec;
 	int msi_lpi_vec;
-- 
2.39.2