From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id A57C1C4167B for ; Thu, 13 Oct 2022 00:35:58 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231865AbiJMAfz (ORCPT ); Wed, 12 Oct 2022 20:35:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38902 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231909AbiJMAde (ORCPT ); Wed, 12 Oct 2022 20:33:34 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3975CD9952; Wed, 12 Oct 2022 17:28:48 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 865EF616DC; Thu, 13 Oct 2022 00:20:21 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 14BCBC433C1; Thu, 13 Oct 2022 00:20:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1665620421; bh=6vbKmmz0ryFxKZLGyy2yrARzgTOezGzvxGBhsplRrh8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HuyFqub24PHNgKocqDsq6KsGK1iBCQXg1nyRhzcyNAJhAbX3sXNbN5GjqUmI++yFg yadRUCu6/GWhGhz35WvB8G5xWq5NNwhAIT0PzhhfQnzgCgs5r0U2VR/EPuKScYhFPf s4tnmirc8QKdEuPykIYXBRV236AgoiShOCVdT2eEV+gJv8UUEpMf4/iXzidz9U8Ymr LsQBCBnCfDSQv1BCYfvfNwGdNLN9yaY1vwytByXD/PPvtzYnboPARldfjykdtImlNe h+ziAo5q9vpMj1rfl3zPDUUfxXKNHrA88YFGbzwXTLY2Y5dWiHwaLrYmvSuvbpTLEh s2WMiLWzDpCqg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: sunghwan jung , Greg Kroah-Hartman , Sasha Levin , stern@rowland.harvard.edu, linux-usb@vger.kernel.org, usb-storage@lists.one-eyed-alien.net Subject: [PATCH AUTOSEL 5.19 41/63] Revert "usb: storage: Add quirk for Samsung Fit flash" Date: Wed, 12 Oct 2022 20:18:15 -0400 Message-Id: <20221013001842.1893243-41-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221013001842.1893243-1-sashal@kernel.org> References: <20221013001842.1893243-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: sunghwan jung [ Upstream commit ad5dbfc123e6ffbbde194e2a4603323e09f741ee ] This reverts commit 86d92f5465958752481269348d474414dccb1552, which fix the timeout issue for "Samsung Fit Flash". But the commit affects not only "Samsung Fit Flash" but also other usb storages that use the same controller and causes severe performance regression. # hdparm -t /dev/sda (without the quirk) Timing buffered disk reads: 622 MB in 3.01 seconds = 206.66 MB/sec # hdparm -t /dev/sda (with the quirk) Timing buffered disk reads: 220 MB in 3.00 seconds = 73.32 MB/sec The commit author mentioned that "Issue was reproduced after device has bad block", so this quirk should be applied when we have the timeout issue with a device that has bad blocks. We revert the commit so that we apply this quirk by adding kernel paramters using a bootloader or other ways when we really need it, without the performance regression with devices that don't have the issue. Signed-off-by: sunghwan jung Link: https://lore.kernel.org/r/20220913114913.3073-1-onenowy@gmail.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/storage/unusual_devs.h | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/usb/storage/unusual_devs.h b/drivers/usb/storage/unusual_devs.h index 4993227ab293..20dcbccb290b 100644 --- a/drivers/usb/storage/unusual_devs.h +++ b/drivers/usb/storage/unusual_devs.h @@ -1275,12 +1275,6 @@ UNUSUAL_DEV( 0x090a, 0x1200, 0x0000, 0x9999, USB_SC_RBC, USB_PR_BULK, NULL, 0 ), -UNUSUAL_DEV(0x090c, 0x1000, 0x1100, 0x1100, - "Samsung", - "Flash Drive FIT", - USB_SC_DEVICE, USB_PR_DEVICE, NULL, - US_FL_MAX_SECTORS_64), - /* aeb */ UNUSUAL_DEV( 0x090c, 0x1132, 0x0000, 0xffff, "Feiya", -- 2.35.1