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Date:      Sat, 17 Nov 2018 15:47:16 -0800 (PST)
From:      "Rodney W. Grimes" <freebsd@pdx.rh.CN85.dnsmgr.net>
To:        Mark Johnston <markj@freebsd.org>
Cc:        src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-12@freebsd.org
Subject:   Re: svn commit: r340511 - stable/12/sys/kern
Message-ID:  <201811172347.wAHNlGi6053535@pdx.rh.CN85.dnsmgr.net>
In-Reply-To: <201811172001.wAHK1aR7047919@repo.freebsd.org>

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> Author: markj
> Date: Sat Nov 17 20:01:35 2018
> New Revision: 340511
> URL: https://svnweb.freebsd.org/changeset/base/340511
> 
> Log:
>   MFC r339731:
>   Add FALLTHROUGH comments to appease Coverity.
> 
> Modified:
>   stable/12/sys/kern/kern_environment.c
>   stable/12/sys/kern/vfs_mount.c
> Directory Properties:
>   stable/12/   (props changed)
> 
> Modified: stable/12/sys/kern/kern_environment.c
> ==============================================================================
> --- stable/12/sys/kern/kern_environment.c	Sat Nov 17 20:00:10 2018	(r340510)
> +++ stable/12/sys/kern/kern_environment.c	Sat Nov 17 20:01:35 2018	(r340511)
> @@ -839,10 +839,13 @@ getenv_quad(const char *name, quad_t *data)
>  	switch (vtp[0]) {
>  	case 't': case 'T':
>  		iv *= 1024;
> +		/* FALLTHROUGH */
>  	case 'g': case 'G':
>  		iv *= 1024;
> +		/* FALLTHROUGH */
>  	case 'm': case 'M':
>  		iv *= 1024;
> +		/* FALLTHROUGH */
>  	case 'k': case 'K':
>  		iv *= 1024;
Missing /* FALLTHROUGH */ ??

>  	case '\0':

And a refactor:

 	case 't': case 'T':
 	case 'g': case 'G':
 	case 'm': case 'M':
 	case 'k': case 'K':
 		iv *= 1024;
		/* FALLTHROUGH */
 	case '\0':

Isnt that the same functionality?
> 
> Modified: stable/12/sys/kern/vfs_mount.c
> ==============================================================================
> --- stable/12/sys/kern/vfs_mount.c	Sat Nov 17 20:00:10 2018	(r340510)
> +++ stable/12/sys/kern/vfs_mount.c	Sat Nov 17 20:01:35 2018	(r340511)
> @@ -1643,17 +1643,16 @@ vfs_getopt_size(struct vfsoptlist *opts, const char *n
>  	if (iv < 0)
>  		return (EINVAL);
>  	switch (vtp[0]) {
> -	case 't':
> -	case 'T':
> +	case 't': case 'T':
>  		iv *= 1024;
> -	case 'g':
> -	case 'G':
> +		/* FALLTHROUGH */
> +	case 'g': case 'G':
>  		iv *= 1024;
> -	case 'm':
> -	case 'M':
> +		/* FALLTHROUGH */
> +	case 'm': case 'M':
>  		iv *= 1024;
> -	case 'k':
> -	case 'K':
> +		/* FALLTHROUGH */
> +	case 'k': case 'K':
>  		iv *= 1024;
>  	case '\0':
>  		break;
> 
Similiar here.

-- 
Rod Grimes                                                 rgrimes@freebsd.org



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