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* [PATCH] serial: 8250: 8250_omap: make a const array static, makes object smaller
@ 2021-07-15 14:07 Colin King
  0 siblings, 0 replies; only message in thread
From: Colin King @ 2021-07-15 14:07 UTC (permalink / raw)
  To: Greg Kroah-Hartman, Jiri Slaby, Vignesh Raghavendra,
	linux-serial, linux-kernel
  Cc: kernel-janitors

From: Colin Ian King <colin.king@canonical.com>

Don't populate the const array k3_soc_devices on the stack but instead it
static. Makes the object code smaller by 44 bytes:

Before:
   text    data     bss     dec     hex filename
  31628    5609     128   37365    91f5 drivers/tty/serial/8250/8250_omap.o

After:
   text    data     bss     dec     hex filename
  31520    5673     128   37321    91c9 drivers/tty/serial/8250/8250_omap.o
Reduction of 44 bytes

(gcc version 10.3.0)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
---
 drivers/tty/serial/8250/8250_omap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 79418d4beb48..b81d1bdc7b88 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -538,7 +538,7 @@ static void omap_8250_pm(struct uart_port *port, unsigned int state,
 static void omap_serial_fill_features_erratas(struct uart_8250_port *up,
 					      struct omap8250_priv *priv)
 {
-	const struct soc_device_attribute k3_soc_devices[] = {
+	static const struct soc_device_attribute k3_soc_devices[] = {
 		{ .family = "AM65X",  },
 		{ .family = "J721E", .revision = "SR1.0" },
 		{ /* sentinel */ }
-- 
2.31.1


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2021-07-15 14:07 [PATCH] serial: 8250: 8250_omap: make a const array static, makes object smaller Colin King

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