From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 6801742E001; Thu, 16 Jul 2026 14:29:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784212190; cv=none; b=ghTTxJK+NGsygi13UywXLS0dPUO/W6PBJlKyN2Ts0zX/yDVZ/9YKF7UIvUIkseg9o7XNOBS7tvF6Vp2eDMPMN0nIqe+UW7Po5Y6rU/RddahgjTCbTsNdGh1lJzPcz+ghKThMNvXBygcGV7SXDGHkIsh/W296t0F4aHcg5Y5vZWQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784212190; c=relaxed/simple; bh=JNT1xIapeC97uHQsm+ECkSpzNyI02B8+NYEn6tTX/sg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=Cln4dh0hE6kxEpGdRHt6n4zWIVZAy6OSuaPDAggot++OWbNPIob6edxFIW2fxb9kYZwXnT3O3dg3rSET2l921RnUMzfn47hQR1jL6AGbif+JFIRsMge1ldMcAJ1BX2qRERTW1HaQAKIZoBbi3yOnmj0af3Zi1CyDqwlBfibCGaY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=OXBXq1Au; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="OXBXq1Au" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8AF681F000E9; Thu, 16 Jul 2026 14:29:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784212189; bh=ndnJaN/Bwmg58PJvwIjJ12qK3waV8UzPBH4hiGmb9Gk=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=OXBXq1Au2gXYB558WB4VamMrdRYBE/HgX6oEg1cDt6umoU3gDTDvlXePkxDg2I0/8 2ChS+kAvFAzqYTROF74Dp3fWDlm/OpGvDj4+WgP8+97Q7wjEWS0UwIxfFyZseBdMhY RgoN5h1p/NUcMCzF4Kxo4iVOttx4ola1TiSO4sbw= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, "Erich E. Hoover" , stable Subject: [PATCH 6.12 231/349] USB: quirks: add NO_LPM for the Samsung T5 EVO Portable SSD Date: Thu, 16 Jul 2026 15:32:45 +0200 Message-ID: <20260716133038.535936117@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260716133033.287196923@linuxfoundation.org> References: <20260716133033.287196923@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Erich E. Hoover commit fc591787785b9709a0bb65a7df3ba2537d611c47 upstream. The Samsung T5 EVO Portable SSD (04e8:6200) exhibit two forms of link instability when USB Link Power Management is enabled: 1. The units fail to initialize properly on first detection, resulting in a lockup in the drive where it must be power cycled or the kernel will not recognize the presence of the device. 2. If used for sustained operations (small amounts of continuous data are transferred to the unit) then the unit will "hiccup" after roughly 8 hours of use and will disconnect and reconnect. This has a certain probability of triggering the first issue, but also causes mount points to become invalid since the device gets issued a new letter. Signed-off-by: Erich E. Hoover Cc: stable Link: https://patch.msgid.link/20260602204508.48856-1-erich.e.hoover@gmail.com Signed-off-by: Greg Kroah-Hartman --- drivers/usb/core/quirks.c | 3 +++ 1 file changed, 3 insertions(+) --- a/drivers/usb/core/quirks.c +++ b/drivers/usb/core/quirks.c @@ -297,6 +297,9 @@ static const struct usb_device_id usb_qu /* CarrolTouch 4500U */ { USB_DEVICE(0x04e7, 0x0030), .driver_info = USB_QUIRK_RESET_RESUME }, + /* Samsung T5 EVO Portable SSD */ + { USB_DEVICE(0x04e8, 0x6200), .driver_info = USB_QUIRK_NO_LPM }, + /* Samsung Android phone modem - ID conflict with SPH-I500 */ { USB_DEVICE(0x04e8, 0x6601), .driver_info = USB_QUIRK_CONFIG_INTF_STRINGS },