netdev - Re: [PATCH net-next v4 09/17] net: pktgen: align some variable declarations to the most common pattern

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Message-ID: <20250211101537.GK554665@kernel.org>
Date: Tue, 11 Feb 2025 10:15:37 +0000
From: Simon Horman <horms@...nel.org>
To: Peter Seiderer <ps.report@....net>
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Shuah Khan <shuah@...nel.org>
Subject: Re: [PATCH net-next v4 09/17] net: pktgen: align some variable
 declarations to the most common pattern

On Tue, Feb 11, 2025 at 10:29:59AM +0100, Peter Seiderer wrote:
> Hello Simon,
> 
> On Thu, 6 Feb 2025 13:25:38 +0000, Simon Horman <horms@...nel.org> wrote:
> 
> > On Wed, Feb 05, 2025 at 02:11:45PM +0100, Peter Seiderer wrote:
> > > Align some variable declarations (in get_imix_entries and get_labels) to
> > > the most common pattern (int instead of ssize_t/long) and adjust function
> > > return value accordingly.
> > >
> > > Signed-off-by: Peter Seiderer <ps.report@....net>
> >
> > Hi Peter,
> >
> > These comments are is true in general of this patchset, but particularly so
> > in the case of this patch:
> >
> > * I think a more succinct subject would be nice.
> > * I think the patch description should provide some reason
> >   _why_ the change is being made.
> 
> Yep, will improve...
> 
> >
> > Also, specifically relating to this patch, I wonder if it's scope ought to
> > be extended. For example, the two callers of num_arg(), get_imix_entries() and
> > pktgen_if_write() assign the return value of num_arg() to len, which is now
> > an int in both functions. But num_args() returns a long.
> 
> Aim was to get rid of the int/long mixture in the code (which works flawless
> because no one writes to proc with more than a few bytes AND count is limited
> to INT_MAX - PAGE_SIZE in vfs_write (see [1], [2])...
> 
> I believe the clean way is to use
> 
>   size_t i, max;
>   ssize_t len;
> 
> consequently through out the code and adjust the function signatures
> accordingly...., will re-spin...

Thanks Peter,

I for one am all for things being consistent.

...