linux-kernel - [PATCH 2/4] mailbox: pcc: Drop uninformative output during boot

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Message-Id: <20170720110402.15313-3-punit.agrawal@arm.com>
Date:   Thu, 20 Jul 2017 12:04:00 +0100
From:   Punit Agrawal <punit.agrawal@....com>
To:     linux-kernel@...r.kernel.org
Cc:     lorenzo.pieralisi@....com, sudeep.holla@....com,
        Punit Agrawal <punit.agrawal@....com>,
        Jassi Brar <jassisinghbrar@...il.com>
Subject: [PATCH 2/4] mailbox: pcc: Drop uninformative output during boot

When booting on an ACPI enabled system that does not provide the
Platform Communications Channel Table (PCCT), the pcc mailbox driver
prints -

[    0.484261] PCCT header not found.

during probe before returning -ENODEV.

This message clutters the bootlog and doesn't provide any useful
information. Drop this message.

Signed-off-by: Punit Agrawal <punit.agrawal@....com>
Cc: Jassi Brar <jassisinghbrar@...il.com>
---
 drivers/mailbox/pcc.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/drivers/mailbox/pcc.c b/drivers/mailbox/pcc.c
index ac91fd0d62c6..3d83cdc11ab5 100644
--- a/drivers/mailbox/pcc.c
+++ b/drivers/mailbox/pcc.c
@@ -457,10 +457,8 @@ static int __init acpi_pcc_probe(void)
 	/* Search for PCCT */
 	status = acpi_get_table(ACPI_SIG_PCCT, 0, &pcct_tbl);
 
-	if (ACPI_FAILURE(status) || !pcct_tbl) {
-		pr_warn("PCCT header not found.\n");
+	if (ACPI_FAILURE(status) || !pcct_tbl)
 		return -ENODEV;
-	}
 
 	count = acpi_table_parse_entries(ACPI_SIG_PCCT,
 			sizeof(struct acpi_table_pcct),
-- 
2.11.0