diff mbox series

wifi: iwlfifi: fix -Wunused-const-variable gcc warning

Message ID 20230619100030.284920-1-dmantipov@yandex.ru (mailing list archive)
State Superseded
Delegated to: Johannes Berg
Headers show
Series wifi: iwlfifi: fix -Wunused-const-variable gcc warning | expand

Commit Message

Dmitry Antipov June 19, 2023, 10 a.m. UTC
Fix the following gcc 13.1 warning observed with W=1:

drivers/net/wireless/intel/iwlwifi/dvm/rs.c:207:39: warning:
‘iwl_rate_mcs’ defined but not used [-Wunused-const-variable=]

This table is actually used in 'rs_sta_dbgfs_scale_table_read()'
only if CONFIG_MAC80211_DEBUGFS is enabled.

Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
---
 drivers/net/wireless/intel/iwlwifi/dvm/rs.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Johannes Berg June 19, 2023, 10:17 a.m. UTC | #1
On Mon, 2023-06-19 at 13:00 +0300, Dmitry Antipov wrote:
> Fix the following gcc 13.1 warning observed with W=1:
> 
> drivers/net/wireless/intel/iwlwifi/dvm/rs.c:207:39: warning:
> ‘iwl_rate_mcs’ defined but not used [-Wunused-const-variable=]
> 
> This table is actually used in 'rs_sta_dbgfs_scale_table_read()'
> only if CONFIG_MAC80211_DEBUGFS is enabled.
> 
> Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
> ---
>  drivers/net/wireless/intel/iwlwifi/dvm/rs.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
> index 687c906a9d72..ecad7403ec96 100644
> --- a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
> +++ b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
> @@ -203,6 +203,8 @@ static const u16 expected_tpt_mimo3_40MHz[4][IWL_RATE_COUNT] = {
>  	{0, 0, 0, 0, 277, 0, 478, 624, 737, 911, 1026, 1070, 1109}, /* AGG+SGI */
>  };
>  
> +#ifdef CONFIG_MAC80211_DEBUGFS
> +
>  /* mbps, mcs */
>  static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
> 

Maybe move it to the existing ifdef, or even into the function?

Also, you have a typo in subject, 'iwlwifi', but should probably be
"wifi: iwlwifi: dvm: ..." since dvm/mvm are hugely different.

johannes
Greenman, Gregory June 19, 2023, 10:32 a.m. UTC | #2
On Mon, 2023-06-19 at 13:00 +0300, Dmitry Antipov wrote:
> Fix the following gcc 13.1 warning observed with W=1:
> 
> drivers/net/wireless/intel/iwlwifi/dvm/rs.c:207:39: warning:
> ‘iwl_rate_mcs’ defined but not used [-Wunused-const-variable=]
> 
> This table is actually used in 'rs_sta_dbgfs_scale_table_read()'
> only if CONFIG_MAC80211_DEBUGFS is enabled.
> 
> Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
> ---
>  drivers/net/wireless/intel/iwlwifi/dvm/rs.c | 4 ++++
>  1 file changed, 4 insertions(+)
> 
> diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
> index 687c906a9d72..ecad7403ec96 100644
> --- a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
> +++ b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
> @@ -203,6 +203,8 @@ static const u16 expected_tpt_mimo3_40MHz[4][IWL_RATE_COUNT] = {
>         {0, 0, 0, 0, 277, 0, 478, 624, 737, 911, 1026, 1070, 1109}, /* AGG+SGI */
>  };
>  
> +#ifdef CONFIG_MAC80211_DEBUGFS
> +
>  /* mbps, mcs */
>  static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
>         {  "1", "BPSK DSSS"},
> @@ -220,6 +222,8 @@ static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
>         { "60", "64QAM 5/6"},
>  };
>  
> +#endif
> +
>  #define MCS_INDEX_PER_STREAM   (8)
>  
>  static void rs_rate_scale_clear_window(struct iwl_rate_scale_data *window)

Johannes, could you please take it directly to wireless-next? Or you prefer me
to send it with the next set of iwlwifi patches?

Acked-by: Gregory Greenman <gregory.greenman@intel.com>
Greenman, Gregory June 19, 2023, 10:34 a.m. UTC | #3
On Mon, 2023-06-19 at 10:32 +0000, Greenman, Gregory wrote:
> On Mon, 2023-06-19 at 13:00 +0300, Dmitry Antipov wrote:
> > Fix the following gcc 13.1 warning observed with W=1:
> > 
> > drivers/net/wireless/intel/iwlwifi/dvm/rs.c:207:39: warning:
> > ‘iwl_rate_mcs’ defined but not used [-Wunused-const-variable=]
> > 
> > This table is actually used in 'rs_sta_dbgfs_scale_table_read()'
> > only if CONFIG_MAC80211_DEBUGFS is enabled.
> > 
> > Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
> > ---
> >  drivers/net/wireless/intel/iwlwifi/dvm/rs.c | 4 ++++
> >  1 file changed, 4 insertions(+)
> > 
> > diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
> > index 687c906a9d72..ecad7403ec96 100644
> > --- a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
> > +++ b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
> > @@ -203,6 +203,8 @@ static const u16 expected_tpt_mimo3_40MHz[4][IWL_RATE_COUNT] = {
> >         {0, 0, 0, 0, 277, 0, 478, 624, 737, 911, 1026, 1070, 1109}, /* AGG+SGI */
> >  };
> >  
> > +#ifdef CONFIG_MAC80211_DEBUGFS
> > +
> >  /* mbps, mcs */
> >  static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
> >         {  "1", "BPSK DSSS"},
> > @@ -220,6 +222,8 @@ static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
> >         { "60", "64QAM 5/6"},
> >  };
> >  
> > +#endif
> > +
> >  #define MCS_INDEX_PER_STREAM   (8)
> >  
> >  static void rs_rate_scale_clear_window(struct iwl_rate_scale_data *window)
> 
> Johannes, could you please take it directly to wireless-next? Or you prefer me
> to send it with the next set of iwlwifi patches?
> 
> Acked-by: Gregory Greenman <gregory.greenman@intel.com>

Just noticed your comments, so ignore it...
diff mbox series

Patch

diff --git a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
index 687c906a9d72..ecad7403ec96 100644
--- a/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
+++ b/drivers/net/wireless/intel/iwlwifi/dvm/rs.c
@@ -203,6 +203,8 @@  static const u16 expected_tpt_mimo3_40MHz[4][IWL_RATE_COUNT] = {
 	{0, 0, 0, 0, 277, 0, 478, 624, 737, 911, 1026, 1070, 1109}, /* AGG+SGI */
 };
 
+#ifdef CONFIG_MAC80211_DEBUGFS
+
 /* mbps, mcs */
 static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
 	{  "1", "BPSK DSSS"},
@@ -220,6 +222,8 @@  static const struct iwl_rate_mcs_info iwl_rate_mcs[IWL_RATE_COUNT] = {
 	{ "60", "64QAM 5/6"},
 };
 
+#endif
+
 #define MCS_INDEX_PER_STREAM	(8)
 
 static void rs_rate_scale_clear_window(struct iwl_rate_scale_data *window)