From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from viti.kaiser.cx (viti.kaiser.cx [85.214.81.225]) (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 EE2F1A25 for ; Sat, 9 Apr 2022 15:16:12 +0000 (UTC) Received: from ipservice-092-217-091-111.092.217.pools.vodafone-ip.de ([92.217.91.111] helo=martin-debian-2.paytec.ch) by viti.kaiser.cx with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.89) (envelope-from ) id 1ndCor-0005k2-Pm; Sat, 09 Apr 2022 17:16:09 +0200 From: Martin Kaiser To: Greg Kroah-Hartman Cc: Larry Finger , Phillip Potter , Michael Straube , linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Martin Kaiser Subject: [PATCH 8/8] staging: r8188eu: remove the bInSuspend loop Date: Sat, 9 Apr 2022 17:15:57 +0200 Message-Id: <20220409151557.207980-9-martin@kaiser.cx> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20220409151557.207980-1-martin@kaiser.cx> References: <20220409151557.207980-1-martin@kaiser.cx> Precedence: bulk X-Mailing-List: linux-staging@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Remove the loop in rtw_pwr_wakeup that waits while the system is suspended. pwrpriv->bInSuspend is set in rtw_suspend and cleared in rtw_resume. These functions are the .suspend and .resume functions of the struct usb_driver for r8188eu. A usb_driver's suspend and resume functions are called when the entire system goes into suspend or runtime suspend. All of the code paths for rtw_pwr_wakeup start at ioctl handlers. We can remove the loop that checks bInSuspend. It's not possible to call an ioctl while the entire system is suspended. Signed-off-by: Martin Kaiser --- I tried to track down who calls suspend and resume of an usb_driver. My understanding is that all of these calls come from the pm layer and that the suspend and resume affects the whole system, not just the usb device. drivers/staging/r8188eu/core/rtw_pwrctrl.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/staging/r8188eu/core/rtw_pwrctrl.c b/drivers/staging/r8188eu/core/rtw_pwrctrl.c index 717a9bb26c19..093794414d67 100644 --- a/drivers/staging/r8188eu/core/rtw_pwrctrl.c +++ b/drivers/staging/r8188eu/core/rtw_pwrctrl.c @@ -369,10 +369,6 @@ int rtw_pwr_wakeup(struct adapter *padapter) while (pwrpriv->ps_processing && time_before(jiffies, timeout)) msleep(10); - /* System suspend is not allowed to wakeup */ - while (pwrpriv->bInSuspend && time_before(jiffies, timeout)) - msleep(10); - /* I think this should be check in IPS, LPS, autosuspend functions... */ if (check_fwstate(pmlmepriv, _FW_LINKED)) goto exit; -- 2.30.2