diff mbox series

[net-next] qede: cleanup printing in qede_log_probe()

Message ID 20210916135415.GH25094@kili (mailing list archive)
State Changes Requested
Delegated to: Netdev Maintainers
Headers show
Series [net-next] qede: cleanup printing in qede_log_probe() | expand

Checks

Context Check Description
netdev/cover_letter success Link
netdev/fixes_present success Link
netdev/patch_count success Link
netdev/tree_selection success Clearly marked for net-next
netdev/subject_prefix success Link
netdev/cc_maintainers success CCed 5 of 5 maintainers
netdev/source_inline success Was 0 now: 0
netdev/verify_signedoff success Link
netdev/module_param success Was 0 now: 0
netdev/build_32bit success Errors and warnings before: 2 this patch: 0
netdev/kdoc success Errors and warnings before: 0 this patch: 0
netdev/verify_fixes success Link
netdev/checkpatch warning CHECK: Alignment should match open parenthesis
netdev/build_allmodconfig_warn success Errors and warnings before: 2 this patch: 0
netdev/header_inline success Link

Commit Message

Dan Carpenter Sept. 16, 2021, 1:54 p.m. UTC
This code use strlen(buf) to find the number of characters printed.
That's sort of ugly and unnecessary because we can just use the
return from scnprintf() instead.

Also since strlen() does not count the NUL terminator, that means
"QEDE_FW_VER_STR_SIZE - strlen(buf)" is never going to be zero so
that condition can be removed.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
---
 drivers/net/ethernet/qlogic/qede/qede_main.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

Comments

Jakub Kicinski Sept. 16, 2021, 3:18 p.m. UTC | #1
On Thu, 16 Sep 2021 16:54:15 +0300 Dan Carpenter wrote:
> This code use strlen(buf) to find the number of characters printed.
> That's sort of ugly and unnecessary because we can just use the
> return from scnprintf() instead.
> 
> Also since strlen() does not count the NUL terminator, that means
> "QEDE_FW_VER_STR_SIZE - strlen(buf)" is never going to be zero so
> that condition can be removed.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> ---
>  drivers/net/ethernet/qlogic/qede/qede_main.c | 9 ++++-----
>  1 file changed, 4 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
> index 9837bdb89cd4..e188ff5277a5 100644
> --- a/drivers/net/ethernet/qlogic/qede/qede_main.c
> +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
> @@ -1087,9 +1087,9 @@ static void qede_log_probe(struct qede_dev *edev)
>  {
>  	struct qed_dev_info *p_dev_info = &edev->dev_info.common;
>  	u8 buf[QEDE_FW_VER_STR_SIZE];
> -	size_t left_size;
> +	int off;
>  
> -	snprintf(buf, QEDE_FW_VER_STR_SIZE,
> +	off = scnprintf(buf, QEDE_FW_VER_STR_SIZE,
>  		 "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
>  		 p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
>  		 p_dev_info->fw_eng,

Why not adjust the continuation lines? checkpatch is not happy.
Dan Carpenter Sept. 17, 2021, 1:46 p.m. UTC | #2
On Thu, Sep 16, 2021 at 08:18:15AM -0700, Jakub Kicinski wrote:
> On Thu, 16 Sep 2021 16:54:15 +0300 Dan Carpenter wrote:
> > This code use strlen(buf) to find the number of characters printed.
> > That's sort of ugly and unnecessary because we can just use the
> > return from scnprintf() instead.
> > 
> > Also since strlen() does not count the NUL terminator, that means
> > "QEDE_FW_VER_STR_SIZE - strlen(buf)" is never going to be zero so
> > that condition can be removed.
> > 
> > Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
> > ---
> >  drivers/net/ethernet/qlogic/qede/qede_main.c | 9 ++++-----
> >  1 file changed, 4 insertions(+), 5 deletions(-)
> > 
> > diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
> > index 9837bdb89cd4..e188ff5277a5 100644
> > --- a/drivers/net/ethernet/qlogic/qede/qede_main.c
> > +++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
> > @@ -1087,9 +1087,9 @@ static void qede_log_probe(struct qede_dev *edev)
> >  {
> >  	struct qed_dev_info *p_dev_info = &edev->dev_info.common;
> >  	u8 buf[QEDE_FW_VER_STR_SIZE];
> > -	size_t left_size;
> > +	int off;
> >  
> > -	snprintf(buf, QEDE_FW_VER_STR_SIZE,
> > +	off = scnprintf(buf, QEDE_FW_VER_STR_SIZE,
> >  		 "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
> >  		 p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
> >  		 p_dev_info->fw_eng,
> 
> Why not adjust the continuation lines? checkpatch is not happy.

Sorry about that.  I'll resend.

regards,
dan carpenter
diff mbox series

Patch

diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 9837bdb89cd4..e188ff5277a5 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -1087,9 +1087,9 @@  static void qede_log_probe(struct qede_dev *edev)
 {
 	struct qed_dev_info *p_dev_info = &edev->dev_info.common;
 	u8 buf[QEDE_FW_VER_STR_SIZE];
-	size_t left_size;
+	int off;
 
-	snprintf(buf, QEDE_FW_VER_STR_SIZE,
+	off = scnprintf(buf, QEDE_FW_VER_STR_SIZE,
 		 "Storm FW %d.%d.%d.%d, Management FW %d.%d.%d.%d",
 		 p_dev_info->fw_major, p_dev_info->fw_minor, p_dev_info->fw_rev,
 		 p_dev_info->fw_eng,
@@ -1102,9 +1102,8 @@  static void qede_log_probe(struct qede_dev *edev)
 		 (p_dev_info->mfw_rev & QED_MFW_VERSION_0_MASK) >>
 		 QED_MFW_VERSION_0_OFFSET);
 
-	left_size = QEDE_FW_VER_STR_SIZE - strlen(buf);
-	if (p_dev_info->mbi_version && left_size)
-		snprintf(buf + strlen(buf), left_size,
+	if (p_dev_info->mbi_version)
+		off += scnprintf(buf + off, sizeof(buf) - off,
 			 " [MBI %d.%d.%d]",
 			 (p_dev_info->mbi_version & QED_MBI_VERSION_2_MASK) >>
 			 QED_MBI_VERSION_2_OFFSET,