From: Arnd Bergmann <arnd@xxxxxxxx>
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 <arnd@xxxxxxxx>
---
drivers/media/common/b2c2/flexcop.h | 2 +-
drivers/media/pci/b2c2/flexcop-pci.c | 2 +-
drivers/media/usb/b2c2/flexcop-usb.c | 4 ++--
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/media/common/b2c2/flexcop.h b/drivers/media/common/b2c2/flexcop.h
index 486fe2380b92..632d7bb9631a 100644
--- a/drivers/media/common/b2c2/flexcop.h
+++ b/drivers/media/common/b2c2/flexcop.h
@@ -17,7 +17,7 @@ extern int b2c2_flexcop_debug;
#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 a9d9520a94c6..83d0ce7fc80e 100644
--- a/drivers/media/pci/b2c2/flexcop-pci.c
+++ b/drivers/media/pci/b2c2/flexcop-pci.c
@@ -22,7 +22,7 @@ MODULE_PARM_DESC(irq_chk_intv, "set the interval for IRQ streaming watchdog.");
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 e731243267e4..6f8dc96adc08 100644
--- a/drivers/media/usb/b2c2/flexcop-usb.c
+++ b/drivers/media/usb/b2c2/flexcop-usb.c
@@ -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
--
2.29.2
