linux-kernel - Re: [PATCH v3 4/7] staging: speakup: replace spk

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Message-ID: <20160713205720.GL3593@var.home>
Date:	Wed, 13 Jul 2016 22:57:20 +0200
From:	Samuel Thibault <samuel.thibault@...-lyon.org>
To:	Markus Mayer <mmayer@...adcom.com>
Cc:	William Hubbs <w.d.hubbs@...il.com>,
	Chris Brannon <chris@...-brannons.com>,
	Kirk Reiser <kirk@...sers.ca>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	speakup@...ux-speakup.org, devel@...verdev.osuosl.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 4/7] staging: speakup: replace spk_strlwr() with
 strlcpytolower()

Markus Mayer, on Fri 08 Jul 2016 15:43:11 -0700, wrote:
> After introducing generic strltolower() and strtolower(), spk_strlwr()
> is no longer needed.
> 
> Signed-off-by: Markus Mayer <mmayer@...adcom.com>

Acked-by: Samuel Thibault <samuel.thibault@...-lyon.org>

> ---
> 
> Samuel, I left off your ACK, since the implementation of my function
> changed in v2 and again in v3. This patch has been updated to match the
> new strlcpy() semantics. Here, this means we want the length argument
> to be sizeof(new_synth_name).
> 
> See https://patchwork.kernel.org/patch/9215217/ for the previous version.
> 
> 
>  drivers/staging/speakup/kobjects.c    |  3 +--
>  drivers/staging/speakup/main.c        |  3 ++-
>  drivers/staging/speakup/speakup.h     |  1 -
>  drivers/staging/speakup/varhandlers.c | 12 ------------
>  4 files changed, 3 insertions(+), 16 deletions(-)
> 
> diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c
> index 528cbdc..c6e0c2d 100644
> --- a/drivers/staging/speakup/kobjects.c
> +++ b/drivers/staging/speakup/kobjects.c
> @@ -387,11 +387,10 @@ static ssize_t synth_store(struct kobject *kobj, struct kobj_attribute *attr,
>  	len = strlen(buf);
>  	if (len < 2 || len > 9)
>  		return -EINVAL;
> -	strncpy(new_synth_name, buf, len);
> +	strlcpytolower(new_synth_name, buf, sizeof(new_synth_name));
>  	if (new_synth_name[len - 1] == '\n')
>  		len--;
>  	new_synth_name[len] = '\0';
> -	spk_strlwr(new_synth_name);
>  	if ((synth != NULL) && (!strcmp(new_synth_name, synth->name))) {
>  		pr_warn("%s already in use\n", new_synth_name);
>  	} else if (synth_init(new_synth_name) != 0) {
> diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c
> index 97ca4ec..970f568 100644
> --- a/drivers/staging/speakup/main.c
> +++ b/drivers/staging/speakup/main.c
> @@ -2314,7 +2314,8 @@ static int __init speakup_init(void)
>  	spk_initialize_msgs();	/* Initialize arrays for i18n. */
>  	spk_reset_default_chars();
>  	spk_reset_default_chartab();
> -	spk_strlwr(synth_name);
> +	if (synth_name)
> +		strtolower(synth_name);
>  	spk_vars[0].u.n.high = vc->vc_cols;
>  	for (var = spk_vars; var->var_id != MAXVARS; var++)
>  		speakup_register_var(var);
> diff --git a/drivers/staging/speakup/speakup.h b/drivers/staging/speakup/speakup.h
> index df74c91..4725785 100644
> --- a/drivers/staging/speakup/speakup.h
> +++ b/drivers/staging/speakup/speakup.h
> @@ -50,7 +50,6 @@ void synth_insert_next_index(int sent_num);
>  void spk_reset_index_count(int sc);
>  void spk_get_index_count(int *linecount, int *sentcount);
>  int spk_set_key_info(const u_char *key_info, u_char *k_buffer);
> -char *spk_strlwr(char *s);
>  char *spk_s2uchar(char *start, char *dest);
>  int speakup_kobj_init(void);
>  void speakup_kobj_exit(void);
> diff --git a/drivers/staging/speakup/varhandlers.c b/drivers/staging/speakup/varhandlers.c
> index e1393d2..a1af222 100644
> --- a/drivers/staging/speakup/varhandlers.c
> +++ b/drivers/staging/speakup/varhandlers.c
> @@ -309,18 +309,6 @@ int spk_set_mask_bits(const char *input, const int which, const int how)
>  	return 0;
>  }
>  
> -char *spk_strlwr(char *s)
> -{
> -	char *p;
> -
> -	if (!s)
> -		return NULL;
> -
> -	for (p = s; *p; p++)
> -		*p = tolower(*p);
> -	return s;
> -}
> -
>  char *spk_s2uchar(char *start, char *dest)
>  {
>  	int val;
> -- 
> 2.7.4
> 

-- 
Samuel
  bien sûr que ça convient mieux à tout le monde
  enfin, dans la mesure où tout le monde c'est comme moi
 -+- le consensus, c'est facile -+-