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SubjectRe: Re: [PATCH 1/2] dmaengine: dmatest: change symbolic permissions to octal values
Date
Hi, Vinod

On Mon, 2018-01-29 at 10:18 +0530, Vinod Koul wrote:
> On Mon, Jan 22, 2018 at 06:44:40PM +0800, Yang Shunyong wrote:
> >
> > Current coding style prefers octal permissions values. This patch
> > changes symbolic permissions to octal values.
> Is this preference documented anywhere?
>

When using symbolic permissions like "S_IRUGO | S_IWUSR". The
checkpatch.pl will output some warnings to suggest to use octal values.
I quote following lines from checkpatch.pl,

# check for uses of S_<PERMS> that could be octal for readability
...
if (WARN("SYMBOLIC_PERMS",
                                 "Symbolic permissions '$oval' are not
preferred. Consider using octal permissions '$octal'.\n" . $herecurr)
&&
                            $fix) {
                                $fixed[$fixlinenr] =~ s/$val/$octal/;
                        }

Thanks.
Shunyong

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