[PATCH] Staging: batman-adv: fix checkpatch.pl issues in hard-interface.c This is a patch to the hard-interface.c file that fixes up the checkpatch.pl issues Signed-off-by: Chris Nicholson <chris.nicholson at cnick.org.uk>

Dan Carpenter error27 at gmail.com
Thu Feb 11 18:47:24 UTC 2010


On Wed, Feb 10, 2010 at 05:28:45PM +0100, Andrew Lunn wrote:
> Hi Chris
> 
> Thanks for the patch.
> 
> However i have some stylistic issues with the patch. You seem to like
> right justification of wrapped lines. I much prefer left.
> 
> On Sun, Feb 07, 2010 at 06:57:43PM +0000, chris.nicholson at cnick.org.uk wrote:
> > From: Chris Nicholson <chris at localhost.localdomain>
> > 
> > ---
> >  drivers/staging/batman-adv/hard-interface.c |   40 +++++++++++++++++---------
> >  1 files changed, 26 insertions(+), 14 deletions(-)
> > 
> > diff --git a/drivers/staging/batman-adv/hard-interface.c b/drivers/staging/batman-adv/hard-interface.c
> > index 5ea35da..c4ed846 100644
> > --- a/drivers/staging/batman-adv/hard-interface.c
> > +++ b/drivers/staging/batman-adv/hard-interface.c
> > @@ -87,9 +87,15 @@ static void check_known_mac_addr(uint8_t *addr)
> >  			continue;
> >  
> >  		addr_to_string(mac_string, addr);
> > -		debug_log(LOG_TYPE_WARN, "The newly added mac address (%s) already exists on: %s\n",
> > -		          mac_string, batman_if->dev);
> > -		debug_log(LOG_TYPE_WARN, "It is strongly recommended to keep mac addresses unique to avoid problems!\n");
> > +		debug_log(LOG_TYPE_WARN, "The newly added mac address (%s) "
> > +							"already exists on: "
> > +							"%s\n",
> > +							mac_string,
> > +							batman_if->dev);
> > +		debug_log(LOG_TYPE_WARN, "It is strongly recommended to "
> > +							"keep mac addresses "
> > +							"unique avoid problems!"
> > +							"\n");
> 
> Here i would prefer
> 
> 		debug_log(LOG_TYPE_WARN, "The newly added mac address (%s) "
> 			  "already exists on: %s\n",
> 			  mac_string, batman_if->dev);
> 		debug_log(LOG_TYPE_WARN, "It is strongly recommended to "
> 			  "keep mac addresses unique avoid problems!\n");
> 

Actually the kernel style is to leave string literals on one line, like in the
original code.  That makes grep work.

checkpatch.pl gets this wrong because it was easier to just complain about
everything instead of treating strings differently.  There are fixed versions
of checkpatch around that haven't been merged yet.

regards,
dan carpenter

> 
> >  	}
> >  	rcu_read_unlock();
> >  }
> > @@ -121,7 +127,8 @@ static int hardif_is_interface_up(char *dev)
> >  	if ((!list_empty(&if_list)) &&
> >  	    strncmp(((struct batman_if *)if_list.next)->dev, dev, IFNAMSIZ) &&
> >  	    !(((struct batman_if *)if_list.next)->if_active == IF_ACTIVE) &&
> > -	    !(((struct batman_if *)if_list.next)->if_active == IF_TO_BE_ACTIVATED) &&
> > +	    !(((struct batman_if *)if_list.next)->if_active ==
> > +							IF_TO_BE_ACTIVATED) &&
> Here i would put:
> 	    !(((struct batman_if *)if_list.next)->if_active ==
> 	      IF_TO_BE_ACTIVATED) &&
>        
> 
> >  	    (!main_if_was_up())) {
> >  		rcu_read_unlock();
> >  		goto end;
> > @@ -172,7 +179,7 @@ void hardif_deactivate_interface(struct batman_if *batman_if)
> >  	active_ifs--;
> >  
> >  	debug_log(LOG_TYPE_NOTICE, "Interface deactivated: %s\n",
> > -	          batman_if->dev);
> > +							batman_if->dev);
> 
> There is some tab/space issues here, but batman_if->dev); should be
> under the LOG_
> 
> >  }
> >  
> >  /* (re)activate given interface. */
> > @@ -236,7 +243,7 @@ static void hardif_activate_interface(struct batman_if *batman_if)
> >  		set_main_if_addr(batman_if->net_dev->dev_addr);
> >  
> >  	debug_log(LOG_TYPE_NOTICE, "Interface activated: %s\n",
> > -	          batman_if->dev);
> > +							batman_if->dev);
> 
> Same comment as above.
>   
> [snip]
> 
> > @@ -400,8 +412,7 @@ int hardif_add_interface(char *dev, int if_num)
> >  	return 1;
> >  
> >  out:
> > -	if (batman_if->packet_buff)
> > -		kfree(batman_if->packet_buff);
> > +	kfree(batman_if->packet_buff);
> >  	kfree(batman_if);
> >  	kfree(dev);
> >  	return -1;
> > @@ -413,7 +424,7 @@ char hardif_get_active_if_num(void)
> 
> This has already been fixed in linux-next. The code is going through
> quite a lot of changes at the moment as part of the cleanup needed to
> get out of stating. So i suggest you look at linux-next and not so
> much as the latest -rc kernel, which is now somewhat out of date.
> 
> Here is a patch of how I think it should look like. With this
> patch, the linux-next version of hard-interface.c is checkpatch.pl
> clean. Is there anything i have missed? I will add the appropriate
> headers and send it to GregKH sometime soon with my next batch of
> patches for staging.
> 
> Thanks
> 	Andrew
> 
> diff --git a/drivers/staging/batman-adv/hard-interface.c b/drivers/staging/batman-adv/hard-interface.c
> index f8b1ba3..229b94e 100644
> --- a/drivers/staging/batman-adv/hard-interface.c
> +++ b/drivers/staging/batman-adv/hard-interface.c
> @@ -83,9 +83,11 @@ static void check_known_mac_addr(uint8_t *addr)
>  		if (!compare_orig(batman_if->net_dev->dev_addr, addr))
>  			continue;
>  
> -		printk(KERN_WARNING "batman-adv:The newly added mac address (%pM) already exists on: %s\n",
> +		printk(KERN_WARNING "batman-adv:The newly added mac address "
> +		       "(%pM) already exists on: %s\n",
>  		       addr, batman_if->dev);
> -		printk(KERN_WARNING "batman-adv:It is strongly recommended to keep mac addresses unique to avoid problems!\n");
> +		printk(KERN_WARNING "batman-adv:It is strongly recommended to "
> +		       "keep mac addresses unique to avoid problems!\n");
>  	}
>  	rcu_read_unlock();
>  }
> @@ -117,7 +119,8 @@ static int hardif_is_interface_up(char *dev)
>  	if ((!list_empty(&if_list)) &&
>  	    strncmp(((struct batman_if *)if_list.next)->dev, dev, IFNAMSIZ) &&
>  	    !(((struct batman_if *)if_list.next)->if_active == IF_ACTIVE) &&
> -	    !(((struct batman_if *)if_list.next)->if_active == IF_TO_BE_ACTIVATED) &&
> +	    !(((struct batman_if *)if_list.next)->if_active ==
> +	      IF_TO_BE_ACTIVATED) &&
>  	    (!main_if_was_up())) {
>  		rcu_read_unlock();
>  		goto end;
> @@ -162,7 +165,7 @@ void hardif_deactivate_interface(struct batman_if *batman_if)
>  	active_ifs--;
>  
>  	printk(KERN_INFO "batman-adv:Interface deactivated: %s\n",
> -		  batman_if->dev);
> +	       batman_if->dev);
>  }
>  
>  /* (re)activate given interface. */
> @@ -245,7 +248,8 @@ static int resize_orig(struct orig_node *orig_node, int if_num)
>  	data_ptr = kmalloc((if_num + 1) * sizeof(TYPE_OF_WORD) * NUM_WORDS,
>  			   GFP_ATOMIC);
>  	if (!data_ptr) {
> -		printk(KERN_ERR "batman-adv:Can't resize orig: out of memory\n");
> +		printk(KERN_ERR "batman-adv:Can't resize orig: "
> +		       "out of memory\n");
>  		return -1;
>  	}
>  
> @@ -256,7 +260,8 @@ static int resize_orig(struct orig_node *orig_node, int if_num)
>  
>  	data_ptr = kmalloc((if_num + 1) * sizeof(uint8_t), GFP_ATOMIC);
>  	if (!data_ptr) {
> -		printk(KERN_ERR "batman-adv:Can't resize orig: out of memory\n");
> +		printk(KERN_ERR "batman-adv:Can't resize orig:"
> +		       "out of memory\n");
>  		return -1;
>  	}
>  
> @@ -280,7 +285,8 @@ int hardif_add_interface(char *dev, int if_num)
>  	batman_if = kmalloc(sizeof(struct batman_if), GFP_KERNEL);
>  
>  	if (!batman_if) {
> -		printk(KERN_ERR "batman-adv:Can't add interface (%s): out of memory\n", dev);
> +		printk(KERN_ERR "batman-adv:Can't add interface (%s):"
> +		       "out of memory\n", dev);
>  		return -1;
>  	}
>  
> @@ -294,7 +300,8 @@ int hardif_add_interface(char *dev, int if_num)
>  	batman_if->packet_buff = kmalloc(batman_if->packet_len, GFP_KERNEL);
>  
>  	if (!batman_if->packet_buff) {
> -		printk(KERN_ERR "batman-adv:Can't add interface packet (%s): out of memory\n", dev);
> +		printk(KERN_ERR "batman-adv:Can't add interface packet (%s):"
> +		       "out of memory\n", dev);
>  		goto out;
>  	}
>  
> @@ -344,7 +351,9 @@ int hardif_add_interface(char *dev, int if_num)
>  	spin_unlock_irqrestore(&orig_hash_lock, flags);
>  
>  	if (!hardif_is_interface_up(batman_if->dev))
> -		printk(KERN_ERR "batman-adv:Not using interface %s (retrying later): interface not active\n", batman_if->dev);
> +		printk(KERN_ERR "batman-adv:Not using interface %s "
> +		       "(retrying later): interface not active\n",
> +		       batman_if->dev);
>  	else
>  		hardif_activate_interface(batman_if);
>  
> @@ -505,7 +514,6 @@ err_free:
>  
>  }
>  
> -
>  struct notifier_block hard_if_notifier = {
>  	.notifier_call = hard_if_event,
>  };
> 
> --
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