From d6bed580ebd1cc34f5abb49ee74b5e6ff84f8636 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Mon, 22 Mar 2021 11:07:24 +0100 Subject: [PATCH] media: flexcop: avoid -Wempty-body warning Building with 'make W=1' shows many warnings -Wempty-body warnings like drivers/media/common/b2c2/flexcop-misc.c: In function 'flexcop_determine_revision': drivers/media/common/b2c2/flexcop-misc.c:35:85: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body] 35 | deb_info("this FlexCop has the 6 basic main hardware pid filter.\n"); drivers/media/usb/b2c2/flexcop-usb.c: In function 'flexcop_usb_process_frame': drivers/media/usb/b2c2/flexcop-usb.c:357:79: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body] 357 | deb_ts("not ts packet %*ph\n", 4, b+2); | ^ drivers/media/common/b2c2/flexcop-misc.c: In function 'flexcop_determine_revision': drivers/media/common/b2c2/flexcop-misc.c:35:85: error: suggest braces around empty body in an 'else' statement [-Werror=empty-body] 35 | deb_info("this FlexCop has the 6 basic main hardware pid filter.\n"); | ^ Change the empty dprintk() macros to no_printk(), which avoids this warning and adds format string checking. Signed-off-by: Arnd Bergmann Signed-off-by: Sean Young Signed-off-by: Mauro Carvalho Chehab --- drivers/media/common/b2c2/flexcop.h | 6 +++--- drivers/media/pci/b2c2/flexcop-pci.c | 6 +++--- drivers/media/usb/b2c2/flexcop-usb.c | 8 ++++---- 3 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/media/common/b2c2/flexcop.h b/drivers/media/common/b2c2/flexcop.h index 486fe23..05e595f 100644 --- a/drivers/media/common/b2c2/flexcop.h +++ b/drivers/media/common/b2c2/flexcop.h @@ -14,10 +14,10 @@ extern int b2c2_flexcop_debug; /* debug */ #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG -#define dprintk(level,args...) \ - do { if ((b2c2_flexcop_debug & level)) printk(args); } while (0) +#define dprintk(level, args...) \ + do { if ((b2c2_flexcop_debug & (level))) printk(args); } while (0) #else -#define dprintk(level,args...) +#define dprintk(level, args...) no_printk(args) #endif #define deb_info(args...) dprintk(0x01, args) diff --git a/drivers/media/pci/b2c2/flexcop-pci.c b/drivers/media/pci/b2c2/flexcop-pci.c index a9d9520..6a4c7cb 100644 --- a/drivers/media/pci/b2c2/flexcop-pci.c +++ b/drivers/media/pci/b2c2/flexcop-pci.c @@ -18,11 +18,11 @@ module_param(irq_chk_intv, int, 0644); MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog."); #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG -#define dprintk(level,args...) \ - do { if ((debug & level)) printk(args); } while (0) +#define dprintk(level, args...) \ + do { if ((debug & (level))) printk(args); } while (0) #define DEBSTATUS "" #else -#define dprintk(level,args...) +#define dprintk(level, args...) no_printk(args) #define DEBSTATUS " (debugging is not enabled)" #endif diff --git a/drivers/media/usb/b2c2/flexcop-usb.c b/drivers/media/usb/b2c2/flexcop-usb.c index 01d2283..5d38171 100644 --- a/drivers/media/usb/b2c2/flexcop-usb.c +++ b/drivers/media/usb/b2c2/flexcop-usb.c @@ -15,8 +15,8 @@ /* debug */ #ifdef CONFIG_DVB_B2C2_FLEXCOP_DEBUG -#define dprintk(level,args...) \ - do { if ((debug & level)) printk(args); } while (0) +#define dprintk(level, args...) \ + do { if ((debug & (level))) printk(args); } while (0) #define debug_dump(b, l, method) do {\ int i; \ @@ -27,8 +27,8 @@ #define DEBSTATUS "" #else -#define dprintk(level, args...) -#define debug_dump(b, l, method) +#define dprintk(level, args...) no_printk(args) +#define debug_dump(b, l, method) do { } while (0) #define DEBSTATUS " (debugging is not enabled)" #endif -- 2.7.4