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Fri, 13 Mar 2026 18:43:42 +0000 Message-ID: Date: Fri, 13 Mar 2026 20:43:37 +0200 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 1/5] i3c: master: Move rstdaa error suppression To: Jorge Marques , Alexandre Belloni , Frank Li , =?UTF-8?Q?Przemys=C5=82aw_Gaj?= CC: , , "Dan Carpenter" , Jonathan Cameron References: <20260312-ad4062-positive-error-fix-v2-0-1c933b5c7ed8@analog.com> <20260312-ad4062-positive-error-fix-v2-1-1c933b5c7ed8@analog.com> Content-Language: en-US From: Adrian Hunter Organization: Intel Finland Oy, Registered Address: c/o Alberga Business Park, 6 krs, Bertel Jungin Aukio 5, 02600 Espoo, Business Identity Code: 0357606 - 4, Domiciled in Helsinki In-Reply-To: <20260312-ad4062-positive-error-fix-v2-1-1c933b5c7ed8@analog.com> X-ClientProxiedBy: DU2PR04CA0274.eurprd04.prod.outlook.com (2603:10a6:10:28c::9) To IA1PR11MB7198.namprd11.prod.outlook.com (2603:10b6:208:419::15) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: IA1PR11MB7198:EE_|SJ0PR11MB5023:EE_ X-MS-Office365-Filtering-Correlation-Id: d41e1201-3f93-456b-1de0-08de813072f3 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|376014|366016|7053199007|18002099003|56012099003|22082099003; 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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-i3c" Errors-To: linux-i3c-bounces+linux-i3c=archiver.kernel.org@lists.infradead.org On 12/03/2026 18:38, Jorge Marques wrote: > Prepares to fix improper Mx positive error propagation in later Prepares -> Prepare > commits by handling Mx error codes where the i3c_ccc_cmd command > is allocated. Two of the four i3c_master_rstdaa_locked() are error > paths that already suppressed the return value, the remaining two > are changed to handle the I3C_ERROR_M2 Mx error code inside > i3c_master_rstdaa_locked(), checking cmd->err directly. > > Signed-off-by: Jorge Marques Minor cosmetic issue below. Otherwise: Reviewed-by: Adrian Hunter > --- > drivers/i3c/master.c | 8 +++++--- > 1 file changed, 5 insertions(+), 3 deletions(-) > > diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c > index 9e6be49bebb2c..c66f2655eb404 100644 > --- a/drivers/i3c/master.c > +++ b/drivers/i3c/master.c > @@ -1016,6 +1016,10 @@ static int i3c_master_rstdaa_locked(struct i3c_master_controller *master, > ret = i3c_master_send_ccc_cmd_locked(master, &cmd); > i3c_ccc_cmd_dest_cleanup(&dest); > > + /* No active devices on the bus. */ > + if (ret && cmd.err == I3C_ERROR_M2) > + ret = 0; > + > return ret; > } > > @@ -1796,8 +1800,6 @@ int i3c_master_do_daa_ext(struct i3c_master_controller *master, bool rstdaa) > > if (rstdaa) { > rstret = i3c_master_rstdaa_locked(master, I3C_BROADCAST_ADDR); > - if (rstret == I3C_ERROR_M2) > - rstret = 0; > } {} no longer needed > > ret = master->ops->do_daa(master); > @@ -2093,7 +2095,7 @@ static int i3c_master_bus_init(struct i3c_master_controller *master) > * (assigned by the bootloader for example). > */ > ret = i3c_master_rstdaa_locked(master, I3C_BROADCAST_ADDR); > - if (ret && ret != I3C_ERROR_M2) > + if (ret) > goto err_bus_cleanup; > > if (master->ops->set_speed) { > -- linux-i3c mailing list linux-i3c@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-i3c