linux-kernel - [PATCH v2 3/3] staging: r8188eu: Remove pointless NULL check in rtw_check_join

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Message-Id: <20210805185807.3296077-4-nathan@kernel.org>
Date:   Thu,  5 Aug 2021 11:58:07 -0700
From:   Nathan Chancellor <nathan@...nel.org>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Phillip Potter <phil@...lpotter.co.uk>,
        Larry Finger <Larry.Finger@...inger.net>
Cc:     Nick Desaulniers <ndesaulniers@...gle.com>,
        linux-staging@...ts.linux.dev, linux-kernel@...r.kernel.org,
        clang-built-linux@...glegroups.com,
        Nathan Chancellor <nathan@...nel.org>
Subject: [PATCH v2 3/3] staging: r8188eu: Remove pointless NULL check in rtw_check_join_candidate()

Clang warns:

drivers/staging/r8188eu/core/rtw_mlme.c:1629:28: warning: address of
array 'pmlmepriv->assoc_ssid.Ssid' will always evaluate to 'true'
[-Wpointer-bool-conversion]
        if (pmlmepriv->assoc_ssid.Ssid && pmlmepriv->assoc_ssid.SsidLength) {
            ~~~~~~~~~~~~~~~~~~~~~~^~~~ ~~
1 warning generated.

Ssid is an array not at the beginning of a struct so its address cannot
be NULL so remove the check.

Signed-off-by: Nathan Chancellor <nathan@...nel.org>
---
 drivers/staging/r8188eu/core/rtw_mlme.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/staging/r8188eu/core/rtw_mlme.c b/drivers/staging/r8188eu/core/rtw_mlme.c
index e3d5a721d25c..95b952871e67 100644
--- a/drivers/staging/r8188eu/core/rtw_mlme.c
+++ b/drivers/staging/r8188eu/core/rtw_mlme.c
@@ -1622,7 +1622,7 @@ static int rtw_check_join_candidate(struct mlme_priv *pmlmepriv
 	}
 
 	/* check ssid, if needed */
-	if (pmlmepriv->assoc_ssid.Ssid && pmlmepriv->assoc_ssid.SsidLength) {
+	if (pmlmepriv->assoc_ssid.SsidLength) {
 		if (competitor->network.Ssid.SsidLength != pmlmepriv->assoc_ssid.SsidLength ||
 		    memcmp(competitor->network.Ssid.Ssid, pmlmepriv->assoc_ssid.Ssid, pmlmepriv->assoc_ssid.SsidLength))
 			goto exit;
-- 
2.33.0.rc0