Re: [PATCH v2 18/28] video: fbdev: mx3fb: Fix kernel-doc, set but not used and string warnings

2020-11-30 Thread Thomas Zimmermann



Am 28.11.20 um 23:41 schrieb Sam Ravnborg:

Fix W=1 warnings:
- Fix kernel-doc
- Drop unused code/variables
- Use memcpy to copy a string without zero-termination
   strncpy() generates a warning

v2:
   - Updated subject (Lee)

Signed-off-by: Sam Ravnborg 
Cc: Sam Ravnborg 
Cc: Jani Nikula 
Cc: Laurent Pinchart 
Cc: Daniel Vetter 
Cc: Xiaofei Tan 
Cc: Arnd Bergmann 
Cc: Lee Jones 


Acked-by: Thomas Zimmermann 


---
  drivers/video/fbdev/mx3fb.c | 13 -
  1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/video/fbdev/mx3fb.c b/drivers/video/fbdev/mx3fb.c
index 894617ddabcb..fabb271337ed 100644
--- a/drivers/video/fbdev/mx3fb.c
+++ b/drivers/video/fbdev/mx3fb.c
@@ -445,7 +445,6 @@ static void sdc_enable_channel(struct mx3fb_info *mx3_fbi)
  static void sdc_disable_channel(struct mx3fb_info *mx3_fbi)
  {
struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;
-   uint32_t enabled;
unsigned long flags;
  
  	if (mx3_fbi->txd == NULL)

@@ -453,7 +452,7 @@ static void sdc_disable_channel(struct mx3fb_info *mx3_fbi)
  
  	spin_lock_irqsave(>lock, flags);
  
-	enabled = sdc_fb_uninit(mx3_fbi);

+   sdc_fb_uninit(mx3_fbi);
  
  	spin_unlock_irqrestore(>lock, flags);
  
@@ -732,7 +731,7 @@ static int mx3fb_unmap_video_memory(struct fb_info *fbi);
  
  /**

   * mx3fb_set_fix() - set fixed framebuffer parameters from variable settings.
- * @info:  framebuffer information pointer
+ * @fbi:   framebuffer information pointer
   * @return:   0 on success or negative error code on failure.
   */
  static int mx3fb_set_fix(struct fb_info *fbi)
@@ -740,7 +739,7 @@ static int mx3fb_set_fix(struct fb_info *fbi)
struct fb_fix_screeninfo *fix = >fix;
struct fb_var_screeninfo *var = >var;
  
-	strncpy(fix->id, "DISP3 BG", 8);

+   memcpy(fix->id, "DISP3 BG", 8);
  
  	fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
  
@@ -1105,6 +1104,8 @@ static void __blank(int blank, struct fb_info *fbi)
  
  /**

   * mx3fb_blank() - blank the display.
+ * @blank: blank value for the panel
+ * @fbi:   framebuffer information pointer
   */
  static int mx3fb_blank(int blank, struct fb_info *fbi)
  {
@@ -1126,7 +1127,7 @@ static int mx3fb_blank(int blank, struct fb_info *fbi)
  /**
   * mx3fb_pan_display() - pan or wrap the display
   * @var:  variable screen buffer information.
- * @info:  framebuffer information pointer.
+ * @fbi:   framebuffer information pointer.
   *
   * We look only at xoffset, yoffset and the FB_VMODE_YWRAP flag
   */
@@ -1387,6 +1388,8 @@ static int mx3fb_unmap_video_memory(struct fb_info *fbi)
  
  /**

   * mx3fb_init_fbinfo() - initialize framebuffer information object.
+ * @dev: the device
+ * @ops:   framebuffer device operations
   * @return:   initialized framebuffer structure.
   */
  static struct fb_info *mx3fb_init_fbinfo(struct device *dev,



--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer



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[PATCH v2 18/28] video: fbdev: mx3fb: Fix kernel-doc, set but not used and string warnings

2020-11-28 Thread Sam Ravnborg
Fix W=1 warnings:
- Fix kernel-doc
- Drop unused code/variables
- Use memcpy to copy a string without zero-termination
  strncpy() generates a warning

v2:
  - Updated subject (Lee)

Signed-off-by: Sam Ravnborg 
Cc: Sam Ravnborg 
Cc: Jani Nikula 
Cc: Laurent Pinchart 
Cc: Daniel Vetter 
Cc: Xiaofei Tan 
Cc: Arnd Bergmann 
Cc: Lee Jones 
---
 drivers/video/fbdev/mx3fb.c | 13 -
 1 file changed, 8 insertions(+), 5 deletions(-)

diff --git a/drivers/video/fbdev/mx3fb.c b/drivers/video/fbdev/mx3fb.c
index 894617ddabcb..fabb271337ed 100644
--- a/drivers/video/fbdev/mx3fb.c
+++ b/drivers/video/fbdev/mx3fb.c
@@ -445,7 +445,6 @@ static void sdc_enable_channel(struct mx3fb_info *mx3_fbi)
 static void sdc_disable_channel(struct mx3fb_info *mx3_fbi)
 {
struct mx3fb_data *mx3fb = mx3_fbi->mx3fb;
-   uint32_t enabled;
unsigned long flags;
 
if (mx3_fbi->txd == NULL)
@@ -453,7 +452,7 @@ static void sdc_disable_channel(struct mx3fb_info *mx3_fbi)
 
spin_lock_irqsave(>lock, flags);
 
-   enabled = sdc_fb_uninit(mx3_fbi);
+   sdc_fb_uninit(mx3_fbi);
 
spin_unlock_irqrestore(>lock, flags);
 
@@ -732,7 +731,7 @@ static int mx3fb_unmap_video_memory(struct fb_info *fbi);
 
 /**
  * mx3fb_set_fix() - set fixed framebuffer parameters from variable settings.
- * @info:  framebuffer information pointer
+ * @fbi:   framebuffer information pointer
  * @return:0 on success or negative error code on failure.
  */
 static int mx3fb_set_fix(struct fb_info *fbi)
@@ -740,7 +739,7 @@ static int mx3fb_set_fix(struct fb_info *fbi)
struct fb_fix_screeninfo *fix = >fix;
struct fb_var_screeninfo *var = >var;
 
-   strncpy(fix->id, "DISP3 BG", 8);
+   memcpy(fix->id, "DISP3 BG", 8);
 
fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
 
@@ -1105,6 +1104,8 @@ static void __blank(int blank, struct fb_info *fbi)
 
 /**
  * mx3fb_blank() - blank the display.
+ * @blank: blank value for the panel
+ * @fbi:   framebuffer information pointer
  */
 static int mx3fb_blank(int blank, struct fb_info *fbi)
 {
@@ -1126,7 +1127,7 @@ static int mx3fb_blank(int blank, struct fb_info *fbi)
 /**
  * mx3fb_pan_display() - pan or wrap the display
  * @var:   variable screen buffer information.
- * @info:  framebuffer information pointer.
+ * @fbi:   framebuffer information pointer.
  *
  * We look only at xoffset, yoffset and the FB_VMODE_YWRAP flag
  */
@@ -1387,6 +1388,8 @@ static int mx3fb_unmap_video_memory(struct fb_info *fbi)
 
 /**
  * mx3fb_init_fbinfo() - initialize framebuffer information object.
+ * @dev: the device
+ * @ops:   framebuffer device operations
  * @return:initialized framebuffer structure.
  */
 static struct fb_info *mx3fb_init_fbinfo(struct device *dev,
-- 
2.27.0

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