fbdev: pm[23]fb.c: fix -Wextra build warnings and errors

When 'DEBUG' is not defined, modify the DPRINTK() macro to use the
no_printk() macro instead of using <empty>.
This fixes build warnings when -Wextra is used and provides
printk format checking:

../drivers/video/fbdev/pm2fb.c:227:38: warning: suggest braces around empty body in an ‘if’ statement [-Wempty-body]
../drivers/video/fbdev/pm3fb.c:1039:33: warning: suggest braces around empty body in an ‘else’ statement [-Wempty-body]

Also drop one argument in two DPRINTK() macro uses to provide the
correct number of arguments and use the correct field in one case
to fix a build error:

../drivers/video/fbdev/pm3fb.c:353:9: error: ‘struct fb_info’ has no member named ‘current_par’
     info->current_par->depth);

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200315041002.24473-6-rdunlap@infradead.org

diff --git a/drivers/video/fbdev/pm2fb.c b/drivers/video/fbdev/pm2fb.c
index fe2cade..c7c98d8 100644 (file)
--- a/drivers/video/fbdev/pm2fb.c
+++ b/drivers/video/fbdev/pm2fb.c
@@ -54,7 +54,7 @@
 #define DPRINTK(a, b...)       \
        printk(KERN_DEBUG "pm2fb: %s: " a, __func__ , ## b)
 #else
-#define DPRINTK(a, b...)
+#define DPRINTK(a, b...)       no_printk(a, ##b)
 #endif
 
 #define PM2_PIXMAP_SIZE        (1600 * 4)

diff --git a/drivers/video/fbdev/pm3fb.c b/drivers/video/fbdev/pm3fb.c
index 2f5e23c..7497bd3 100644 (file)
--- a/drivers/video/fbdev/pm3fb.c
+++ b/drivers/video/fbdev/pm3fb.c
@@ -44,7 +44,7 @@
 #define DPRINTK(a, b...)       \
        printk(KERN_DEBUG "pm3fb: %s: " a, __func__ , ## b)
 #else
-#define DPRINTK(a, b...)
+#define DPRINTK(a, b...)       no_printk(a, ##b)
 #endif
 
 #define PM3_PIXMAP_SIZE        (2048 * 4)
@@ -306,7 +306,7 @@ static void pm3fb_init_engine(struct fb_info *info)
                                           PM3PixelSize_GLOBAL_32BIT);
                        break;
                default:
-                       DPRINTK(1, "Unsupported depth %d\n",
+                       DPRINTK("Unsupported depth %d\n",
                                info->var.bits_per_pixel);
                        break;
                }
@@ -349,8 +349,8 @@ static void pm3fb_init_engine(struct fb_info *info)
                                           (1 << 10) | (0 << 3));
                        break;
                default:
-                       DPRINTK(1, "Unsupported depth %d\n",
-                               info->current_par->depth);
+                       DPRINTK("Unsupported depth %d\n",
+                               info->var.bits_per_pixel);
                        break;
                }
        }