Message ID | 20221129223855.1005674-1-colin.i.king@gmail.com |
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State | New |
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[80.193.200.194]) by smtp.gmail.com with ESMTPSA id s4-20020adfecc4000000b002421f89df39sm3594347wro.37.2022.11.29.14.38.56 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Nov 2022 14:38:56 -0800 (PST) From: Colin Ian King <colin.i.king@gmail.com> To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Colin Ian King <colin.i.king@gmail.com>, Miaoqian Lin <linmq006@gmail.com> Cc: kernel-janitors@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH][next] firmware: dmi-sysfs: make pr_info messages rate limited Date: Tue, 29 Nov 2022 22:38:55 +0000 Message-Id: <20221129223855.1005674-1-colin.i.king@gmail.com> X-Mailer: git-send-email 2.38.1 MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM, RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS 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: <linux-kernel.vger.kernel.org> X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1750872179189824076?= X-GMAIL-MSGID: =?utf-8?q?1750872179189824076?= |
Series |
[next] firmware: dmi-sysfs: make pr_info messages rate limited
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Commit Message
Colin Ian King
Nov. 29, 2022, 10:38 p.m. UTC
Currently if a process repeat repeatedly reads the dmi sysfs raw event log
/sys/firmware/dmi/entries/15-0/system_event_log/raw_event_log when GPNV
support is missing or using an unknown access method the kernel log gets
spammed with info messages. Make the messages rate limited to reduce the
message spamming. Triggered when running sudo stress-ng --sysfs -t 5m.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
---
drivers/firmware/dmi-sysfs.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/drivers/firmware/dmi-sysfs.c b/drivers/firmware/dmi-sysfs.c index 66727ad3361b..9b6ce172175c 100644 --- a/drivers/firmware/dmi-sysfs.c +++ b/drivers/firmware/dmi-sysfs.c @@ -418,10 +418,10 @@ static ssize_t dmi_sel_raw_read_helper(struct dmi_sysfs_entry *entry, return dmi_sel_raw_read_phys32(entry, &sel, state->buf, state->pos, state->count); case DMI_SEL_ACCESS_METHOD_GPNV: - pr_info("dmi-sysfs: GPNV support missing.\n"); + pr_info_ratelimited("dmi-sysfs: GPNV support missing.\n"); return -EIO; default: - pr_info("dmi-sysfs: Unknown access method %02x\n", + pr_info_ratelimited("dmi-sysfs: Unknown access method %02x\n", sel.access_method); return -EIO; }