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[92.176.231.205]) by smtp.gmail.com with ESMTPSA id bo28-20020a056000069c00b0033b406bc689sm14668667wrb.75.2024.02.28.02.10.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 28 Feb 2024 02:10:44 -0800 (PST) From: Javier Martinez Canillas To: linux-kernel@vger.kernel.org Cc: Nishanth Menon , Javier Martinez Canillas , Breno Leitao , Kalle Valo , Li Zetao , linux-wireless@vger.kernel.org Subject: [PATCH v2] wlcore: sdio: Rate limit wl12xx_sdio_raw_{read,write}() failures warns Date: Wed, 28 Feb 2024 11:10:32 +0100 Message-ID: <20240228101042.728881-1-javierm@redhat.com> X-Mailer: git-send-email 2.43.2 Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 When these failures happen, the warning and call trace is printed which is excessive. Instead, just print the error but rate limited to prevent warns to unnecessarily pollute the kernel log buffer and make the serial console practically unusable. For example, on an AM625 BeaglePlay board where accessing a SDIO WiFi chip fails with an -110 (ETIMEDOUT) error: $ dmesg | grep "sdio write\|read failed (-110)" | wc -l 39 Signed-off-by: Javier Martinez Canillas Reviewed-by: Breno Leitao --- Changes in v2: - Add Reviewed-by tag by Breno Leitao. - Drop warns which seems excesive and rate limit the error (Kalle Vallo). drivers/net/wireless/ti/wlcore/sdio.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ti/wlcore/sdio.c b/drivers/net/wireless/ti/wlcore/sdio.c index eb5482ed76ae..70b9648acaaf 100644 --- a/drivers/net/wireless/ti/wlcore/sdio.c +++ b/drivers/net/wireless/ti/wlcore/sdio.c @@ -75,8 +75,8 @@ static int __must_check wl12xx_sdio_raw_read(struct device *child, int addr, sdio_release_host(func); - if (WARN_ON(ret)) - dev_err(child->parent, "sdio read failed (%d)\n", ret); + if (ret) + dev_err_ratelimited(child->parent, "sdio read failed (%d)\n", ret); if (unlikely(dump)) { printk(KERN_DEBUG "wlcore_sdio: READ from 0x%04x\n", addr); @@ -120,8 +120,8 @@ static int __must_check wl12xx_sdio_raw_write(struct device *child, int addr, sdio_release_host(func); - if (WARN_ON(ret)) - dev_err(child->parent, "sdio write failed (%d)\n", ret); + if (ret) + dev_err_ratelimited(child->parent, "sdio write failed (%d)\n", ret); return ret; }