Re: [PATCH 5/4] ipc,shm: minor cleanups

From: Davidlohr Bueso
Date: Wed Apr 23 2014 - 01:26:47 EST


On Wed, 2014-04-23 at 07:07 +0200, Michael Kerrisk (man-pages) wrote:
> On 04/23/2014 04:53 AM, Davidlohr Bueso wrote:
> > - Breakup long function names/args.
> > - Cleaup variable declaration.
> > - s/current->mm/mm
> >
> > Signed-off-by: Davidlohr Bueso <davidlohr@xxxxxx>
> > ---
> > ipc/shm.c | 40 +++++++++++++++++-----------------------
> > 1 file changed, 17 insertions(+), 23 deletions(-)
> >
> > diff --git a/ipc/shm.c b/ipc/shm.c
> > index f000696..584d02e 100644
> > --- a/ipc/shm.c
> > +++ b/ipc/shm.c
> > @@ -480,15 +480,13 @@ static const struct vm_operations_struct shm_vm_ops = {
> > static int newseg(struct ipc_namespace *ns, struct ipc_params *params)
> > {
> > key_t key = params->key;
> > - int shmflg = params->flg;
> > + int id, error, shmflg = params->flg;
>
> It's largely a matter of taste (and I may be in a minority), and I know
> there's certainly precedent in the kernel code, but I don't much like the
> style of mixing variable declarations that have initializers, with other
> unrelated declarations (e.g., variables without initializers). What is
> the gain? One less line of text? That's (IMO) more than offset by the
> small loss of readability.

Yes, it's taste. And yes, your in the minority, at least in many core
kernel components and ipc.

Thanks,
Davidlohr

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