[2/2] net/usb/ax88179_178a: Delete three unnecessary variables in ax88179_chk_eee()

[2/2] net/usb/ax88179_178a: Delete three unnecessary variables in ax88179_chk_eee()

[Oliver Neukum]

Am Dienstag, den 13.03.2018, 08:24 +0100 schrieb SF Markus Elfring:
> > 
> > > 
> > > Use three values directly for a condition check without assigning them
> > > to intermediate variables.
> > 
> > Hi,
> > 
> > what is the benefit of this?
> 
> I proposed a small source code reduction.
> 
> Other software design directions might become more interesting for this use case.

Yes and doing so you killed three meaningful names that tell
us what these checks actually test for. That is not an improvement.

	Regards
		Oliver
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[2/2] net/usb/ax88179_178a: Delete three unnecessary variables in ax88179_chk_eee()

[SF Markus Elfring]

>> Use three values directly for a condition check without assigning them
>> to intermediate variables.
> 
> Hi,
> 
> what is the benefit of this?

I proposed a small source code reduction.

Other software design directions might become more interesting for this use case.

Regards,
Markus
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[2/2] net/usb/ax88179_178a: Delete three unnecessary variables in ax88179_chk_eee()

[Oliver Neukum]

Am Samstag, den 10.03.2018, 19:26 +0100 schrieb SF Markus Elfring:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Sat, 10 Mar 2018 18:53:28 +0100
> 
> Use three values directly for a condition check without assigning them
> to intermediate variables.

Hi,

what is the benefit of this? It looks like needless code churn to me.

	Regards
		Oliver
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[2/2] net/usb/ax88179_178a: Delete three unnecessary variables in ax88179_chk_eee()

[SF Markus Elfring]

From: Markus Elfring <elfring@users.sourceforge.net>
Date: Sat, 10 Mar 2018 18:53:28 +0100

Use three values directly for a condition check without assigning them
to intermediate variables.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
---
 drivers/net/usb/ax88179_178a.c | 13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

diff --git a/drivers/net/usb/ax88179_178a.c b/drivers/net/usb/ax88179_178a.c
index e4b0baa98e9a..3e83be232504 100644
--- a/drivers/net/usb/ax88179_178a.c
+++ b/drivers/net/usb/ax88179_178a.c
@@ -684,7 +684,7 @@ static int ax88179_chk_eee(struct usbnet *dev)
 
 	if (ecmd.duplex & DUPLEX_FULL) {
 		int eee_lp, eee_cap, eee_adv;
-		u32 lp, cap, adv, supported = 0;
+		u32 cap;
 
 		eee_cap = ax88179_phy_read_mmd_indirect(dev,
 							MDIO_PCS_EEE_ABLE,
@@ -708,12 +708,11 @@ static int ax88179_chk_eee(struct usbnet *dev)
 		if (eee_adv < 0)
 			goto set_inactive;
 
-		adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
-		lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
-		supported = (ecmd.speed == SPEED_1000) ?
-			     SUPPORTED_1000baseT_Full :
-			     SUPPORTED_100baseT_Full;
-		if (!(lp & adv & supported))
+		if (!(mmd_eee_adv_to_ethtool_adv_t(eee_lp) &
+		      mmd_eee_adv_to_ethtool_adv_t(eee_adv) &
+		      ((ecmd.speed == SPEED_1000)
+		       ? SUPPORTED_1000baseT_Full
+		       : SUPPORTED_100baseT_Full)))
 			goto set_inactive;
 
 		priv->eee_active = 1;