Thread (12 messages) 12 messages, 6 authors, 2014-05-02

rfc: checkpatch logical line continuations (was IBM Akebono: Add support for a new PHY interface to the IBM emac driver)

From: Joe Perches <hidden>
Date: 2014-03-07 21:02:51
Also in: linux-devicetree, linuxppc-dev, lkml

(added some cc's)

On Fri, 2014-03-07 at 15:41 -0500, David Miller wrote:
From: Alistair Popple <redacted>
Date: Thu,  6 Mar 2014 14:52:25 +1100
quoted
+	out_be32(dev->reg, in_be32(dev->reg) | WKUP_ETH_RGMIIEN
+		 | WKUP_ETH_TX_OE | WKUP_ETH_RX_IE);
When an expression spans multiple lines, the lines should end with
operators rather than begin with them.
That's not in CodingStyle currently.

Right now, checkpatch emits a --strict only warning on "&&" or "||"
at the beginning of line but that could be changed to any "$Operators"

our $Arithmetic = qr{\+|-|\*|\/|%};
our $Operators	= qr{
			<=|>=|==|!=|
			=>|->|<<|>>|<|>|!|~|
			&&|\|\||,|\^|\+\+|--|&|\||$Arithmetic
		  }x;

The ones that likely have a too high false positive rates
are the negation "!" and bitwise "~".

Also, using perl, it's hard to distinguish between a
logical "&" and the address-of "&" as well as the
multiplication "*" and indirection "*" so maybe those
should be excluded too.

And I think it should only be added as a --strict test.



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