linux-kernel - [PATCH v2 2/7] staging: wlan-ng: Remove unused struct wlan_ie_supp

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Date:   Tue, 1 Nov 2022 19:18:35 +0530
From:   Deepak R Varma <drv@...lo.com>
To:     outreachy@...ts.linux.dev,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/7] staging: wlan-ng: Remove unused struct
 wlan_ie_supp_rates references

Pointer reference to struct wlan_ie_supp_rates is added as a member
variable to 7 different structures. However, these references are
never used. Remove such unused struct references. The cleanup also
renders the struct useless; so remove it as well.
Issue identified as part of coccicheck based code analysis.

Suggested-by: Dan Carpenter <dan.carpenter@...cle.com>
Suggested-by: Pavel Skripkin <paskripkin@...il.com>
Signed-off-by: Deepak R Varma <drv@...lo.com>
---

Changes in v2:
   1. Include additional code clean-up opportunities and combine changes in a
      patch set based on impact areas.
   2. The patch changes are compile tested only on X86 arch.

 drivers/staging/wlan-ng/p80211mgmt.h | 14 --------------
 1 file changed, 14 deletions(-)

diff --git a/drivers/staging/wlan-ng/p80211mgmt.h b/drivers/staging/wlan-ng/p80211mgmt.h
index dcff56d18498..536794bdd1f0 100644
--- a/drivers/staging/wlan-ng/p80211mgmt.h
+++ b/drivers/staging/wlan-ng/p80211mgmt.h
@@ -225,13 +225,6 @@ struct wlan_ie {
 	u8 len;
 } __packed;

-/*-- Supported Rates  -----------------------------*/
-struct wlan_ie_supp_rates {
-	u8 eid;
-	u8 len;
-	u8 rates[1];		/* had better be at LEAST one! */
-} __packed;
-
 /*-- FH Parameter Set  ----------------------------*/
 struct wlan_ie_fh_parms {
 	u8 eid;
@@ -312,7 +305,6 @@ struct wlan_fr_beacon {
 	u16 *bcn_int;
 	u16 *cap_info;
 	/*-- info elements ----------*/
-	struct wlan_ie_supp_rates *supp_rates;
 	struct wlan_ie_fh_parms *fh_parms;
 	struct wlan_ie_ds_parms *ds_parms;
 	struct wlan_ie_cf_parms *cf_parms;
@@ -364,7 +356,6 @@ struct wlan_fr_assocreq {
 	u16 *cap_info;
 	u16 *listen_int;
 	/*-- info elements ----------*/
-	struct wlan_ie_supp_rates *supp_rates;

 };

@@ -381,7 +372,6 @@ struct wlan_fr_assocresp {
 	u16 *status;
 	u16 *aid;
 	/*-- info elements ----------*/
-	struct wlan_ie_supp_rates *supp_rates;

 };

@@ -398,7 +388,6 @@ struct wlan_fr_reassocreq {
 	u16 *listen_int;
 	u8 *curr_ap;
 	/*-- info elements ----------*/
-	struct wlan_ie_supp_rates *supp_rates;

 };

@@ -415,7 +404,6 @@ struct wlan_fr_reassocresp {
 	u16 *status;
 	u16 *aid;
 	/*-- info elements ----------*/
-	struct wlan_ie_supp_rates *supp_rates;

 };

@@ -429,7 +417,6 @@ struct wlan_fr_probereq {
 	void *priv;
 	/*-- fixed fields -----------*/
 	/*-- info elements ----------*/
-	struct wlan_ie_supp_rates *supp_rates;

 };

@@ -446,7 +433,6 @@ struct wlan_fr_proberesp {
 	u16 *bcn_int;
 	u16 *cap_info;
 	/*-- info elements ----------*/
-	struct wlan_ie_supp_rates *supp_rates;
 	struct wlan_ie_fh_parms *fh_parms;
 	struct wlan_ie_ds_parms *ds_parms;
 	struct wlan_ie_cf_parms *cf_parms;
--
2.34.1