linux-kernel - [PATCH 2/2] stmmac: intel: Simplify intel_eth_pci

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Date:   Sat, 30 Jul 2022 20:20:02 +0200
From:   Christophe JAILLET <christophe.jaillet@...adoo.fr>
To:     andriy.shevchenko@...ux.intel.com, vee.khee.wong@...el.com,
        weifeng.voon@...el.com,
        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>
Cc:     linux-kernel@...r.kernel.org, kernel-janitors@...r.kernel.org,
        Christophe JAILLET <christophe.jaillet@...adoo.fr>,
        netdev@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/2] stmmac: intel: Simplify intel_eth_pci_remove()

There is no point to call pcim_iounmap_regions() in the remove function,
this frees a managed resource that would be release by the framework
anyway.

Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
This patch is speculative.
Sometimes the order of releasing managed resources is tricky.

Just a few drivers have this pattern, while many call pcim_iomap_regions().
If I'm right and this patch is reviewed and merged, I'll look at the
other files if they also can be simplified a bit.
---
 drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
index 9f38642f86ce..f68d23051557 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-intel.c
@@ -1136,8 +1136,6 @@ static void intel_eth_pci_remove(struct pci_dev *pdev)
 
 	clk_disable_unprepare(plat->stmmac_clk);
 	clk_unregister_fixed_rate(priv->plat->stmmac_clk);
-
-	pcim_iounmap_regions(pdev, BIT(0));
 }
 
 static int __maybe_unused intel_eth_pci_suspend(struct device *dev)
-- 
2.34.1