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Fri, 14 Jun 2024 03:23:03 -0500 Received: from [172.24.227.94] (uda0132425.dhcp.ti.com [172.24.227.94]) by lelvsmtp6.itg.ti.com (8.15.2/8.15.2) with ESMTP id 45E8MxPX004736; Fri, 14 Jun 2024 03:23:00 -0500 Message-ID: <4220a910-b64a-4212-8d29-a4dbedfba735@ti.com> Date: Fri, 14 Jun 2024 13:52:59 +0530 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH] serial: 8250_omap: Implementation of Errata i2310 To: Greg KH , Udit Kumar CC: , , , , , , , , References: <20240614061314.290840-1-u-kumar1@ti.com> <2024061435-reawake-smoking-f639@gregkh> From: Vignesh Raghavendra Content-Language: en-US In-Reply-To: <2024061435-reawake-smoking-f639@gregkh> Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-EXCLAIMER-MD-CONFIG: e1e8a2fd-e40a-4ac6-ac9b-f7e9cc9ee180 On 14/06/24 12:16, Greg KH wrote: > On Fri, Jun 14, 2024 at 11:43:14AM +0530, Udit Kumar wrote: >> As per Errata i2310[0], Erroneous timeout can be triggered, >> if this Erroneous interrupt is not cleared then it may leads >> to strom of interrupts, therefore apply Errata i2310 solution. >> s/strom/storm >> [0] https://www.ti.com/lit/pdf/sprz536 page 23 >> >> Signed-off-by: Udit Kumar >> --- >> drivers/tty/serial/8250/8250_omap.c | 25 ++++++++++++++++++++----- >> 1 file changed, 20 insertions(+), 5 deletions(-) > > Does this need to go to older/stable kernels? If so, how far back? > Yes, this seems to be an updated workaround to existing errata. Please add below Fixes tag when you respin Fixes: b67e830d38fa ("serial: 8250: 8250_omap: Fix possible interrupt storm on K3 SoCs") > thanks, > > greg k-h -- Regards Vignesh