* [PATCH v4] net: ns83820: code cleanup for ns83820_probe_phy()
@ 2019-02-19 13:45 Mao Wenan
2019-02-19 22:11 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Mao Wenan @ 2019-02-19 13:45 UTC (permalink / raw)
To: kernel-janitors, netdev, john.fastabend, hawk, jakub.kicinski,
daniel, ast, julia.lawall, wharms
This patch is to do code cleanup for ns83820_probe_phy().
It deletes unused variable 'first', commented out code,
and the pointless 'for' loop.
Signed-off-by: Mao Wenan <maowenan@huawei.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
---
v3->v4: delete pointless 'for' loop, variable 'i', and so on.
drivers/net/ethernet/natsemi/ns83820.c | 70 ++++++++------------------
1 file changed, 21 insertions(+), 49 deletions(-)
diff --git a/drivers/net/ethernet/natsemi/ns83820.c b/drivers/net/ethernet/natsemi/ns83820.c
index 958fced4dacf..959c0fa37d75 100644
--- a/drivers/net/ethernet/natsemi/ns83820.c
+++ b/drivers/net/ethernet/natsemi/ns83820.c
@@ -1869,56 +1869,28 @@ static unsigned ns83820_mii_write_reg(struct ns83820 *dev, unsigned phy, unsigne
static void ns83820_probe_phy(struct net_device *ndev)
{
struct ns83820 *dev = PRIV(ndev);
- static int first;
- int i;
-#define MII_PHYIDR1 0x02
-#define MII_PHYIDR2 0x03
-
-#if 0
- if (!first) {
- unsigned tmp;
- ns83820_mii_read_reg(dev, 1, 0x09);
- ns83820_mii_write_reg(dev, 1, 0x10, 0x0d3e);
-
- tmp = ns83820_mii_read_reg(dev, 1, 0x00);
- ns83820_mii_write_reg(dev, 1, 0x00, tmp | 0x8000);
- udelay(1300);
- ns83820_mii_read_reg(dev, 1, 0x09);
- }
-#endif
- first = 1;
-
- for (i=1; i<2; i++) {
- int j;
- unsigned a, b;
- a = ns83820_mii_read_reg(dev, i, MII_PHYIDR1);
- b = ns83820_mii_read_reg(dev, i, MII_PHYIDR2);
-
- //printk("%s: phy %d: 0x%04x 0x%04x\n",
- // ndev->name, i, a, b);
-
- for (j=0; j<0x16; j+=4) {
- dprintk("%s: [0x%02x] %04x %04x %04x %04x\n",
- ndev->name, j,
- ns83820_mii_read_reg(dev, i, 0 + j),
- ns83820_mii_read_reg(dev, i, 1 + j),
- ns83820_mii_read_reg(dev, i, 2 + j),
- ns83820_mii_read_reg(dev, i, 3 + j)
- );
- }
- }
- {
- unsigned a, b;
- /* read firmware version: memory addr is 0x8402 and 0x8403 */
- ns83820_mii_write_reg(dev, 1, 0x16, 0x000d);
- ns83820_mii_write_reg(dev, 1, 0x1e, 0x810e);
- a = ns83820_mii_read_reg(dev, 1, 0x1d);
-
- ns83820_mii_write_reg(dev, 1, 0x16, 0x000d);
- ns83820_mii_write_reg(dev, 1, 0x1e, 0x810e);
- b = ns83820_mii_read_reg(dev, 1, 0x1d);
- dprintk("version: 0x%04x 0x%04x\n", a, b);
+ int j;
+ unsigned a, b;
+
+ for (j = 0; j < 0x16; j += 4) {
+ dprintk("%s: [0x%02x] %04x %04x %04x %04x\n",
+ ndev->name, j,
+ ns83820_mii_read_reg(dev, 1, 0 + j),
+ ns83820_mii_read_reg(dev, 1, 1 + j),
+ ns83820_mii_read_reg(dev, 1, 2 + j),
+ ns83820_mii_read_reg(dev, 1, 3 + j)
+ );
}
+
+ /* read firmware version: memory addr is 0x8402 and 0x8403 */
+ ns83820_mii_write_reg(dev, 1, 0x16, 0x000d);
+ ns83820_mii_write_reg(dev, 1, 0x1e, 0x810e);
+ a = ns83820_mii_read_reg(dev, 1, 0x1d);
+
+ ns83820_mii_write_reg(dev, 1, 0x16, 0x000d);
+ ns83820_mii_write_reg(dev, 1, 0x1e, 0x810e);
+ b = ns83820_mii_read_reg(dev, 1, 0x1d);
+ dprintk("version: 0x%04x 0x%04x\n", a, b);
}
#endif
--
2.20.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v4] net: ns83820: code cleanup for ns83820_probe_phy()
2019-02-19 13:45 [PATCH v4] net: ns83820: code cleanup for ns83820_probe_phy() Mao Wenan
@ 2019-02-19 22:11 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2019-02-19 22:11 UTC (permalink / raw)
To: maowenan
Cc: kernel-janitors, netdev, john.fastabend, hawk, jakub.kicinski,
daniel, ast, julia.lawall, wharms
From: Mao Wenan <maowenan@huawei.com>
Date: Tue, 19 Feb 2019 21:45:10 +0800
> This patch is to do code cleanup for ns83820_probe_phy().
> It deletes unused variable 'first', commented out code,
> and the pointless 'for' loop.
>
> Signed-off-by: Mao Wenan <maowenan@huawei.com>
> Acked-by: Julia Lawall <julia.lawall@lip6.fr>
> ---
> v3->v4: delete pointless 'for' loop, variable 'i', and so on.
Before pushing out I realized I applied v3 instead of this v4, but
that's now fixed up.
^ permalink raw reply [flat|nested] 2+ messages in thread
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