linux-kernel - [PATCH v2 1/7] staging: wlan-ng: Remove unused struct wlan_ie

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Date:   Tue, 1 Nov 2022 19:18:10 +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 1/7] staging: wlan-ng: Remove unused struct wlan_ie_ssid
 references

Pointer reference to struct wlan_ie_ssid is added as a member variable
to 5 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 | 12 ------------
 1 file changed, 12 deletions(-)

diff --git a/drivers/staging/wlan-ng/p80211mgmt.h b/drivers/staging/wlan-ng/p80211mgmt.h
index 1ef30d3f3159..dcff56d18498 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;

-/*-- Service Set Identity (SSID)  -----------------*/
-struct wlan_ie_ssid {
-	u8 eid;
-	u8 len;
-	u8 ssid[1];		/* may be zero, ptrs may overlap */
-} __packed;
-
 /*-- Supported Rates  -----------------------------*/
 struct wlan_ie_supp_rates {
 	u8 eid;
@@ -319,7 +312,6 @@ struct wlan_fr_beacon {
 	u16 *bcn_int;
 	u16 *cap_info;
 	/*-- info elements ----------*/
-	struct wlan_ie_ssid *ssid;
 	struct wlan_ie_supp_rates *supp_rates;
 	struct wlan_ie_fh_parms *fh_parms;
 	struct wlan_ie_ds_parms *ds_parms;
@@ -372,7 +364,6 @@ struct wlan_fr_assocreq {
 	u16 *cap_info;
 	u16 *listen_int;
 	/*-- info elements ----------*/
-	struct wlan_ie_ssid *ssid;
 	struct wlan_ie_supp_rates *supp_rates;

 };
@@ -407,7 +398,6 @@ struct wlan_fr_reassocreq {
 	u16 *listen_int;
 	u8 *curr_ap;
 	/*-- info elements ----------*/
-	struct wlan_ie_ssid *ssid;
 	struct wlan_ie_supp_rates *supp_rates;

 };
@@ -439,7 +429,6 @@ struct wlan_fr_probereq {
 	void *priv;
 	/*-- fixed fields -----------*/
 	/*-- info elements ----------*/
-	struct wlan_ie_ssid *ssid;
 	struct wlan_ie_supp_rates *supp_rates;

 };
@@ -457,7 +446,6 @@ struct wlan_fr_proberesp {
 	u16 *bcn_int;
 	u16 *cap_info;
 	/*-- info elements ----------*/
-	struct wlan_ie_ssid *ssid;
 	struct wlan_ie_supp_rates *supp_rates;
 	struct wlan_ie_fh_parms *fh_parms;
 	struct wlan_ie_ds_parms *ds_parms;
--
2.34.1