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Message-ID: <20240807042210.1608026-1-sunilvl@ventanamicro.com>
Date: Wed,  7 Aug 2024 09:52:10 +0530
From: Sunil V L <sunilvl@...tanamicro.com>
To: linux-kernel@...r.kernel.org,
	linux-serial@...r.kernel.org
Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>,
	Sunil V L <sunilvl@...tanamicro.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	kernel test robot <lkp@...el.com>
Subject: [PATCH] serial: 8250_platform: Fix structure initialization warning

Use memset to initialize the uart structure instead of universal zero
initializer to fix the below warning.

drivers/tty/serial/8250/8250_platform.c: In function 'serial8250_platform_probe':
drivers/tty/serial/8250/8250_platform.c:111:40: warning: excess elements in struct initializer
  111 |         struct uart_8250_port uart = { 0 };
      |                                        ^
drivers/tty/serial/8250/8250_platform.c:111:40: note: (near initialization for 'uart.port.lock.<anonymous>.rlock.raw_lock')

Reported-by: Stephen Rothwell <sfr@...b.auug.org.au>
Reported-by: kernel test robot <lkp@...el.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202407310023.h0JgJG1C-lkp@intel.com/
Fixes: d9e5a0ce2f16 ("serial: 8250_platform: Enable generic 16550A platform devices")
Signed-off-by: Sunil V L <sunilvl@...tanamicro.com>
---
 drivers/tty/serial/8250/8250_platform.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_platform.c b/drivers/tty/serial/8250/8250_platform.c
index bdfb16bed4f2..d8c3c169a620 100644
--- a/drivers/tty/serial/8250/8250_platform.c
+++ b/drivers/tty/serial/8250/8250_platform.c
@@ -108,11 +108,12 @@ void __init serial8250_isa_init_ports(void)
 static int serial8250_platform_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
-	struct uart_8250_port uart = { 0 };
+	struct uart_8250_port uart;
 	struct resource *regs;
 	unsigned char iotype;
 	int ret, line;
 
+	memset(&uart, 0, sizeof(uart));
 	regs = platform_get_resource(pdev, IORESOURCE_IO, 0);
 	if (regs) {
 		uart.port.iobase = regs->start;
-- 
2.43.0


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