linux-kernel - [PATCH 2/2] net: remove comments that mention obsolete __SLOW_DOWN

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Message-Id: <20220425212644.1659070-3-helgaas@kernel.org>
Date:   Mon, 25 Apr 2022 16:26:44 -0500
From:   Bjorn Helgaas <helgaas@...nel.org>
To:     Jakub Kicinski <kuba@...nel.org>,
        "David S . Miller" <davem@...emloft.net>,
        Paolo Abeni <pabeni@...hat.com>,
        Chas Williams <3chas3@...il.com>
Cc:     linux-atm-general@...ts.sourceforge.net, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org, Bjorn Helgaas <bhelgaas@...gle.com>
Subject: [PATCH 2/2] net: remove comments that mention obsolete __SLOW_DOWN_IO

From: Bjorn Helgaas <bhelgaas@...gle.com>

The only remaining definitions of __SLOW_DOWN_IO (for alpha and ia64) do
nothing, and the only mentions in networking are in comments.  Remove these
mentions.

Signed-off-by: Bjorn Helgaas <bhelgaas@...gle.com>
---
 drivers/atm/nicstarmac.c                     | 5 -----
 drivers/net/ethernet/dec/tulip/winbond-840.c | 2 --
 drivers/net/ethernet/natsemi/natsemi.c       | 2 --
 3 files changed, 9 deletions(-)

diff --git a/drivers/atm/nicstarmac.c b/drivers/atm/nicstarmac.c
index e0dda9062e6b..791f69a07ddf 100644
--- a/drivers/atm/nicstarmac.c
+++ b/drivers/atm/nicstarmac.c
@@ -14,11 +14,6 @@ typedef void __iomem *virt_addr_t;
 
 #define CYCLE_DELAY 5
 
-/*
-   This was the original definition
-#define osp_MicroDelay(microsec) \
-    do { int _i = 4*microsec; while (--_i > 0) { __SLOW_DOWN_IO; }} while (0)
-*/
 #define osp_MicroDelay(microsec) {unsigned long useconds = (microsec); \
                                   udelay((useconds));}
 /*
diff --git a/drivers/net/ethernet/dec/tulip/winbond-840.c b/drivers/net/ethernet/dec/tulip/winbond-840.c
index 86b1d23eba83..1db19463fd46 100644
--- a/drivers/net/ethernet/dec/tulip/winbond-840.c
+++ b/drivers/net/ethernet/dec/tulip/winbond-840.c
@@ -474,8 +474,6 @@ static int w840_probe1(struct pci_dev *pdev, const struct pci_device_id *ent)
    No extra delay is needed with 33Mhz PCI, but future 66Mhz access may need
    a delay.  Note that pre-2.0.34 kernels had a cache-alignment bug that
    made udelay() unreliable.
-   The old method of using an ISA access as a delay, __SLOW_DOWN_IO__, is
-   deprecated.
 */
 #define eeprom_delay(ee_addr)	ioread32(ee_addr)
 
diff --git a/drivers/net/ethernet/natsemi/natsemi.c b/drivers/net/ethernet/natsemi/natsemi.c
index 82a22711ce45..50bca486a244 100644
--- a/drivers/net/ethernet/natsemi/natsemi.c
+++ b/drivers/net/ethernet/natsemi/natsemi.c
@@ -989,8 +989,6 @@ static int natsemi_probe1(struct pci_dev *pdev, const struct pci_device_id *ent)
    No extra delay is needed with 33Mhz PCI, but future 66Mhz access may need
    a delay.  Note that pre-2.0.34 kernels had a cache-alignment bug that
    made udelay() unreliable.
-   The old method of using an ISA access as a delay, __SLOW_DOWN_IO__, is
-   deprecated.
 */
 #define eeprom_delay(ee_addr)	readl(ee_addr)
 
-- 
2.25.1