From patchwork Fri Nov 17 21:08:42 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Doug Anderson X-Patchwork-Id: 13459357 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="EIyHVlKi" Received: from mail-pf1-x431.google.com (mail-pf1-x431.google.com [IPv6:2607:f8b0:4864:20::431]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 90F7DD6C for ; Fri, 17 Nov 2023 13:09:59 -0800 (PST) Received: by mail-pf1-x431.google.com with SMTP id d2e1a72fcca58-6bee11456baso2246298b3a.1 for ; Fri, 17 Nov 2023 13:09:59 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1700255399; x=1700860199; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=DL5piRnOOgGpwdkxQbi83S5rjEjfPe4DjTzZgACvY58=; b=EIyHVlKiSNhvyjB29Mm9SC2Cksbkw8cRh8ped9kyLt/tn60jK6yxzAb2qdMZtQdb1G 51IIH5TP0BVhDyAqHpBM6rPpMeXP3vUF8fDSc1FaRS9BnrfWDm95Rvvqu9qbD7y3X/+o hKacmxm77F7aStYWW/MvaHgM6GYgYNZbIt2Pw= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1700255399; x=1700860199; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=DL5piRnOOgGpwdkxQbi83S5rjEjfPe4DjTzZgACvY58=; b=JYlXkWAT2buEz/4Ap5/6a5O37HlzrmFsNcr8VQykjX2Mb+PU5nwgViY97VHyXWauFu LL4Us+Di4+9RHX3c7GIG5neB0yx3Up5YIv/vBX5eZ70PtkvFOOvJKZvNuHPOKVJfhIeU C9gKTXIj/AkeZxLzQT72sGdhHnVPmA55eiLzkFLIAYB69RkV6jI6PP95e8sn+KYpRP1/ hZgdFQzHLJFZ14EqjnLOYaYUJpAE3Wyz2O67V7oROIUjf7u6XK2ruIWUycF9dtK5677T t1a/xnV/u4Y7RV0LisgdrOqYNNcNmXlVeED5NAbqbzICWloIWMzWuL7ReohjCXjKEweG AxIw== X-Gm-Message-State: AOJu0YxJKJ31fle1B5XDcE/TPmNlzO74w541SD9bBeWBaN2SbsnuLBNJ jtrMgxzv6ttu7Xune+nkyv7Deg== X-Google-Smtp-Source: AGHT+IGHWMC8lpH06rvyXJMANK059TL4Qd9yND7/duFlglKPEMZcUlex5YYsClh3kZ/YlBoNHES+4A== X-Received: by 2002:a05:6a20:bea5:b0:187:652d:95b5 with SMTP id gf37-20020a056a20bea500b00187652d95b5mr289192pzb.62.1700255398792; Fri, 17 Nov 2023 13:09:58 -0800 (PST) Received: from tictac2.mtv.corp.google.com ([2620:15c:9d:2:b953:95f4:4240:7018]) by smtp.gmail.com with ESMTPSA id h20-20020a056a00219400b006c624e8e7e8sm1780587pfi.83.2023.11.17.13.09.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 17 Nov 2023 13:09:58 -0800 (PST) From: Douglas Anderson To: Jakub Kicinski , Hayes Wang , "David S . Miller" Cc: Grant Grundler , Simon Horman , Edward Hill , linux-usb@vger.kernel.org, Laura Nao , Alan Stern , Douglas Anderson , =?utf-8?q?Bj=C3=B8rn_Mork?= , Eric Dumazet , Paolo Abeni , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH 2/2] r8152: Add RTL8152_INACCESSIBLE checks to more loops Date: Fri, 17 Nov 2023 13:08:42 -0800 Message-ID: <20231117130836.2.I79c8a6c8cafd89979af5407d77a6eda589833dca@changeid> X-Mailer: git-send-email 2.43.0.rc0.421.g78406f8d94-goog In-Reply-To: <20231117130836.1.I77097aa9ec01aeca1b3c75fde4ba5007a17fdf76@changeid> References: <20231117130836.1.I77097aa9ec01aeca1b3c75fde4ba5007a17fdf76@changeid> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Previous commits added checks for RTL8152_INACCESSIBLE in the loops in the driver. There are still a few more that keep tripping the driver up in error cases and make things take longer than they should. Add those in. Signed-off-by: Douglas Anderson Reviewed-by: Grant Grundler --- drivers/net/usb/r8152.c | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/drivers/net/usb/r8152.c b/drivers/net/usb/r8152.c index d6edf0254599..aca7dd7b4090 100644 --- a/drivers/net/usb/r8152.c +++ b/drivers/net/usb/r8152.c @@ -3000,6 +3000,8 @@ static void rtl8152_nic_reset(struct r8152 *tp) ocp_write_byte(tp, MCU_TYPE_PLA, PLA_CR, CR_RST); for (i = 0; i < 1000; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return; if (!(ocp_read_byte(tp, MCU_TYPE_PLA, PLA_CR) & CR_RST)) break; usleep_range(100, 400); @@ -3329,6 +3331,8 @@ static void rtl_disable(struct r8152 *tp) rxdy_gated_en(tp, true); for (i = 0; i < 1000; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return; ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); if ((ocp_data & FIFO_EMPTY) == FIFO_EMPTY) break; @@ -3336,6 +3340,8 @@ static void rtl_disable(struct r8152 *tp) } for (i = 0; i < 1000; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return; if (ocp_read_word(tp, MCU_TYPE_PLA, PLA_TCR0) & TCR0_TX_EMPTY) break; usleep_range(1000, 2000); @@ -5499,6 +5505,8 @@ static void wait_oob_link_list_ready(struct r8152 *tp) int i; for (i = 0; i < 1000; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return; ocp_data = ocp_read_byte(tp, MCU_TYPE_PLA, PLA_OOB_CTRL); if (ocp_data & LINK_LIST_READY) break; @@ -5513,6 +5521,8 @@ static void r8156b_wait_loading_flash(struct r8152 *tp) int i; for (i = 0; i < 100; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return; if (ocp_read_word(tp, MCU_TYPE_USB, USB_GPHY_CTRL) & GPHY_PATCH_DONE) break; usleep_range(1000, 2000); @@ -5635,6 +5645,8 @@ static int r8153_pre_firmware_1(struct r8152 *tp) for (i = 0; i < 104; i++) { u32 ocp_data = ocp_read_byte(tp, MCU_TYPE_USB, USB_WDT1_CTRL); + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return -ENODEV; if (!(ocp_data & WTD1_EN)) break; usleep_range(1000, 2000); @@ -5791,6 +5803,8 @@ static void r8153_aldps_en(struct r8152 *tp, bool enable) data &= ~EN_ALDPS; ocp_reg_write(tp, OCP_POWER_CFG, data); for (i = 0; i < 20; i++) { + if (test_bit(RTL8152_INACCESSIBLE, &tp->flags)) + return; usleep_range(1000, 2000); if (ocp_read_word(tp, MCU_TYPE_PLA, 0xe000) & 0x0100) break;