From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id C21897DA7D; Thu, 15 Aug 2024 13:58:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723730300; cv=none; b=N5Ii0EAKT9i5dHp9zHrC3ABGzlO8k/Nj47+smEp/rqgBGGPCrh0oOxw2F0DbFRB7t+ZKmcmuVqdR4Ld3XseN6/On9lPeDpFHz19FxiJw25C5DFwl7s94/pbVTds+fQsNe2sPjhniqkTz9rUBuazbeAyKF4IcITZxfnr+UAZPy+k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723730300; c=relaxed/simple; bh=IEbPbYbr+00EaTj+UIVOgrHuuUmpTrkapmZZ9qiLHEw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=X6bOMOvTyQ7hR8am5qKiBJbJUhc+H3fx935Ds7yz5aU+A0jSNUKL5u33zonSdZxbGVtXJXIuDHQ75nE65epPhfWRbXeYVdv1GX7EKuShJWy+xz3YzYOVxbeor2GQDhNq1rFiuY+tIZy3Z/Yp6EY5tmhwvBluKipF/xwBW+5n5jY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=c8Dk+E0S; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="c8Dk+E0S" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 15AD3C4AF0A; Thu, 15 Aug 2024 13:58:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1723730300; bh=IEbPbYbr+00EaTj+UIVOgrHuuUmpTrkapmZZ9qiLHEw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=c8Dk+E0Sq1l66dgxq96cOJqLrNQPTR7KNhsPEB3fURsbVLOOOeTZ5WC45IRKRU+pI +UywUgQIRibqfYO6IMFlYO01eCGxNnxQVbWgk/jpTQnDirtyXtmtf3tJ8ZmUgC/n4Y CnQwXuzbJZ9XlLWNJVPwRwGJBKYqh+Pjg0PEJ6WU= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Dan Carpenter , Simon Horman , Jakub Kicinski , Sasha Levin Subject: [PATCH 5.15 335/484] net: mvpp2: Dont re-use loop iterator Date: Thu, 15 Aug 2024 15:23:13 +0200 Message-ID: <20240815131954.351099259@linuxfoundation.org> X-Mailer: git-send-email 2.46.0 In-Reply-To: <20240815131941.255804951@linuxfoundation.org> References: <20240815131941.255804951@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Dan Carpenter [ Upstream commit 0aa3ca956c46d849775eae1816cef8fe4bc8b50e ] This function has a nested loop. The problem is that both the inside and outside loop use the same variable as an iterator. I found this via static analysis so I'm not sure the impact. It could be that it loops forever or, more likely, the loop exits early. Fixes: 3a616b92a9d1 ("net: mvpp2: Add TX flow control support for jumbo frames") Signed-off-by: Dan Carpenter Reviewed-by: Simon Horman Link: https://patch.msgid.link/eaa8f403-7779-4d81-973d-a9ecddc0bf6f@stanley.mountain Signed-off-by: Jakub Kicinski Signed-off-by: Sasha Levin --- drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c index ba44d1d9cfcd4..2a60f949d9532 100644 --- a/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c +++ b/drivers/net/ethernet/marvell/mvpp2/mvpp2_main.c @@ -953,13 +953,13 @@ static void mvpp2_bm_pool_update_fc(struct mvpp2_port *port, static void mvpp2_bm_pool_update_priv_fc(struct mvpp2 *priv, bool en) { struct mvpp2_port *port; - int i; + int i, j; for (i = 0; i < priv->port_count; i++) { port = priv->port_list[i]; if (port->priv->percpu_pools) { - for (i = 0; i < port->nrxqs; i++) - mvpp2_bm_pool_update_fc(port, &port->priv->bm_pools[i], + for (j = 0; j < port->nrxqs; j++) + mvpp2_bm_pool_update_fc(port, &port->priv->bm_pools[j], port->tx_fc & en); } else { mvpp2_bm_pool_update_fc(port, port->pool_long, port->tx_fc & en); -- 2.43.0