linux-kernel - [PATCH v2 1/2] mfd: ipaq-micro: Use %*ph for printing hexdump of a small buffer

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Message-Id: <20230703140923.2840-1-andriy.shevchenko@linux.intel.com>
Date:   Mon,  3 Jul 2023 17:09:22 +0300
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     linux-kernel@...r.kernel.org
Cc:     Lee Jones <lee@...nel.org>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Subject: [PATCH v2 1/2] mfd: ipaq-micro: Use %*ph for printing hexdump of a small buffer

The kernel already has a helper to print a hexdump of a small
buffer via pointer extension. Use that instead of open coded
variant.

In long term it helps to kill pr_cont() or at least narrow down
its use.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
---
v2: split another change to a separate patch (Lee)
 drivers/mfd/ipaq-micro.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/mfd/ipaq-micro.c b/drivers/mfd/ipaq-micro.c
index 6d3968458e81..cddfd2e808f2 100644
--- a/drivers/mfd/ipaq-micro.c
+++ b/drivers/mfd/ipaq-micro.c
@@ -131,10 +131,7 @@ static void micro_rx_msg(struct ipaq_micro *micro, u8 id, int len, u8 *data)
 		break;
 	default:
 		dev_err(micro->dev,
-			"unknown msg %d [%d] ", id, len);
-		for (i = 0; i < len; ++i)
-			pr_cont("0x%02x ", data[i]);
-		pr_cont("\n");
+			"unknown msg %d [%d] %*ph\n", id, len, len, data);
 	}
 	spin_unlock(&micro->lock);
 }
-- 
2.40.0.1.gaa8946217a0b