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([2600:1700:e321:62f0:329c:23ff:fee3:9d7c]) by smtp.gmail.com with ESMTPSA id p20-20020a056830319400b006060322124csm5210182ots.28.2022.05.09.15.55.56 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Mon, 09 May 2022 15:55:57 -0700 (PDT) Sender: Guenter Roeck Message-ID: Date: Mon, 9 May 2022 15:55:54 -0700 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.8.1 Content-Language: en-US To: Mario Limonciello , Wim Van Sebroeck , "open list:WATCHDOG DEVICE DRIVERS" , open list Cc: ionut_n2001@yahoo.com References: <20220509163304.86-1-mario.limonciello@amd.com> From: Guenter Roeck Subject: Re: [PATCH] Watchdog: sp5100_tco: Lower verbosity of disabled watchdog hardware In-Reply-To: <20220509163304.86-1-mario.limonciello@amd.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-2.4 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_EF,FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM,HEADER_FROM_DIFFERENT_DOMAINS, NICE_REPLY_A,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 5/9/22 09:33, Mario Limonciello wrote: > If watchdog hardware has been disabled, currently the kernel driver > will show at err level during probe: > > "Watchdog hardware is disabled" > > This is unnecessarily verbose as there is already a -ENODEV returned. > Lower the level to debug. Is it ? Without this message, a user may try to load the driver, get an error message, and have no idea why the driver was not enabled even though the hardware exists. If anything , -ENODEV is less than perfect. Unfortunately there does not seem to be a better error code, or at least I don't see one. Guenter > > Reported-by: ionut_n2001@yahoo.com > Link: https://bugzilla.kernel.org/show_bug.cgi?id=215762 > Signed-off-by: Mario Limonciello > --- > drivers/watchdog/sp5100_tco.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/watchdog/sp5100_tco.c b/drivers/watchdog/sp5100_tco.c > index 86ffb58fbc85..e51ecbd5c8b7 100644 > --- a/drivers/watchdog/sp5100_tco.c > +++ b/drivers/watchdog/sp5100_tco.c > @@ -286,7 +286,7 @@ static int sp5100_tco_timer_init(struct sp5100_tco *tco) > > val = readl(SP5100_WDT_CONTROL(tco->tcobase)); > if (val & SP5100_WDT_DISABLED) { > - dev_err(dev, "Watchdog hardware is disabled\n"); > + dev_dbg(dev, "Watchdog hardware is disabled\n"); > return -ENODEV; > } >