linux-kernel - Re: [PATCH] staging: ks7010: clean up code

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Date:   Sat, 4 Mar 2017 08:28:58 +0200
From:   Ernestas Kulik <ernestas.kulik@...il.com>
To:     Joe Perches <joe@...ches.com>, gregkh@...uxfoundation.org
Cc:     devel@...verdev.osuosl.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] staging: ks7010: clean up code

On Fri, 2017-03-03 at 17:23-0800, Joe Perches wrote:

> On Fri, 2017-03-03 at 22:58 +0200, Ernestas Kulik wrote:
>
> > This fixes type warnings generated by sparse, replaces instances of
> > ntohs() with be16_to_cpu() and removes unused fields in structs.
> 
> There's no real need to convert ntohs to be16_to_cpu

I noticed a patch that was merged that replaces calls to these with the
more “generic” be16_to_cpu(), but I can revert that.

This kind of conversion also happened in SeaBIOS, but it’s not exactly
the same thing as here.

> > diff --git a/drivers/staging/ks7010/ks7010_sdio.c b/drivers/staging/ks7010/ks7010_sdio.c
> []
> > 
> > @@ -297,7 +297,8 @@ static int write_to_device(struct ks_wlan_private *priv, unsigned char *buffer,
> >  	hdr = (struct hostif_hdr *)buffer;
> >  
> >  	DPRINTK(4, "size=%d\n", hdr->size);
> > -	if (hdr->event < HIF_DATA_REQ || HIF_REQ_MAX < hdr->event) {
> > +	if (le16_to_cpu(hdr->event) < HIF_DATA_REQ ||
> > +	    HIF_REQ_MAX < le16_to_cpu(hdr->event)) {
> > 
> 
> This isn't mentioned and doesn't match the commit message

It is and it does, but the commit message is a bit vague. I’ll try to
expand it.