[PATCH 35/36] tty: synclink: Mark disposable variables as __always_unused

Lee Jones
2020-11-04T19:37:03Z

Fixes the following W=1 kernel build warning(s):

drivers/tty/synclink.c: In function ‘usc_reset’:
drivers/tty/synclink.c:5571:6: warning: variable ‘readval’ set but not used [-Wunused-but-set-variable]
drivers/tty/synclink.c: In function ‘mgsl_load_pci_memory’:
drivers/tty/synclink.c:7267:16: warning: variable ‘Dummy’ set but not used [-Wunused-but-set-variable]

Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jiri Slaby <jirislaby@kernel.org>
Cc: paulkf@microgate.com
Signed-off-by: Lee Jones <lee.jones@linaro.org>
---
drivers/tty/synclink.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/tty/synclink.c b/drivers/tty/synclink.c
index c8324d58ef564..8ed64b1e7c378 100644
--- a/drivers/tty/synclink.c
+++ b/drivers/tty/synclink.c
@@ -5568,7 +5568,7 @@ static void usc_load_txfifo( struct mgsl_struct *info )
static void usc_reset( struct mgsl_struct *info )
{
int i;
- u32 readval;
+ u32 __always_unused readval;

/* Set BIT30 of Misc Control Register */
/* (Local Control Register 0x50) to force reset of USC. */
@@ -7264,7 +7264,7 @@ static void mgsl_load_pci_memory( char* TargetPtr, const char* SourcePtr,

unsigned short Intervalcount = count / PCI_LOAD_INTERVAL;
unsigned short Index;
- unsigned long Dummy;
+ unsigned long __always_unused Dummy;

for ( Index = 0 ; Index < Intervalcount ; Index++ )
{
--
2.25.1