2020-09-04 19:40:07

by Joe Perches

Subject: Re: [PATCH v6 18/18] crypto: sun8i-ce: fix some style issue

On Fri, 2020-09-04 at 11:10 +0000, Corentin Labbe wrote:
> This patch fix a double empty line issue reported by checkpatch.
> While at it, since now the maximum line length is now 100, reorder some
> wrapped line.
[]
> diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
[]
> @@ -164,12 +164,10 @@ static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req
> goto theend_key;
> }
> offset = areq->cryptlen - ivsize;
> - scatterwalk_map_and_copy(rctx->backup_iv, areq->src,
> - offset, ivsize, 0);
> + scatterwalk_map_and_copy(rctx->backup_iv, areq->src, offset, ivsize, 0);
> }
> memcpy(rctx->bounce_iv, areq->iv, ivsize);
> - addr_iv = dma_map_single(ce->dev, rctx->bounce_iv, rctx->ivlen,
> - DMA_TO_DEVICE);
> + addr_iv = dma_map_single(ce->dev, rctx->bounce_iv, rctx->ivlen, DMA_TO_DEVICE);

coding-style.rst:

Statements longer than 80 columns should be broken into sensible chunks,
unless exceeding 80 columns significantly increases readability and does
not hide information.

Do these longer lines make the code significantly more readable?
I don't think they do.

2020-09-07 07:17:38

by Corentin Labbe

Subject: Re: [linux-sunxi] Re: [PATCH v6 18/18] crypto: sun8i-ce: fix some style issue

On Fri, Sep 04, 2020 at 12:37:19PM -0700, Joe Perches wrote:
> On Fri, 2020-09-04 at 11:10 +0000, Corentin Labbe wrote:
> > This patch fix a double empty line issue reported by checkpatch.
> > While at it, since now the maximum line length is now 100, reorder some
> > wrapped line.
> []
> > diff --git a/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c b/drivers/crypto/allwinner/sun8i-ce/sun8i-ce-cipher.c
> []
> > @@ -164,12 +164,10 @@ static int sun8i_ce_cipher_prepare(struct crypto_engine *engine, void *async_req
> > goto theend_key;
> > }
> > offset = areq->cryptlen - ivsize;
> > - scatterwalk_map_and_copy(rctx->backup_iv, areq->src,
> > - offset, ivsize, 0);
> > + scatterwalk_map_and_copy(rctx->backup_iv, areq->src, offset, ivsize, 0);
> > }
> > memcpy(rctx->bounce_iv, areq->iv, ivsize);
> > - addr_iv = dma_map_single(ce->dev, rctx->bounce_iv, rctx->ivlen,
> > - DMA_TO_DEVICE);
> > + addr_iv = dma_map_single(ce->dev, rctx->bounce_iv, rctx->ivlen, DMA_TO_DEVICE);
>
> coding-style.rst:
>
> Statements longer than 80 columns should be broken into sensible chunks,
> unless exceeding 80 columns significantly increases readability and does
> not hide information.
>
> Do these longer lines make the code significantly more readable?
> I don't think they do.
>

Oh I saw the increase in checkpatch.pl but didnt saw that it was still 80 in coding-style.rst.
Anyway as maintainer of this driver, I prefer unwrapped lines.

I let Herbert to choose to apply the serie without this last patch or not.