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Date: Wed, 18 Feb 2015 00:51:37 -0800
From: Joe Perches <joe@...ches.com>
To: Parmeshwr Prasad <parmeshwr_prasad@...l.com>
Cc: pjones@...hat.com, plagnioj@...osoft.com,
linux-fbdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/3] Printk() is replaced with pr_* respective functions
in efifb.c
On Wed, 2015-02-18 at 03:29 -0500, Parmeshwr Prasad wrote:
> This is a trivial patch:
>
> I have replaced printk() with respective pr_* functions.
Hi.
A few suggestions:
o Add this #define before any include
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
o Strip the embedded "efifb: " prefixes from the formats
o Coalesce the formats
o Don't change KERN_<LEVEL> uses unnecessarily
If you do change logging levels, state why in the change log
o Align the multiline arguments
> diff --git a/drivers/video/fbdev/efifb.c b/diriveom rrs/video/fbdev/efifb.c
[]
> @@ -142,10 +142,10 @@ static int efifb_probe(struct platform_device *dev)
> if (!screen_info.pages)
> screen_info.pages = 1;
> if (!screen_info.lfb_base) {
> - printk(KERN_DEBUG "efifb: invalid framebuffer address\n");
> + pr_err("efifb: invalid framebuffer address\n");
Strip the "efifb: " prefix from all the pr_<level> uses
pr_err("invalid framebuffer address\n");
> @@ -193,14 +193,14 @@ static int efifb_probe(struct platform_device *dev)
> } else {
> /* We cannot make this fatal. Sometimes this comes from magic
> spaces our resource handlers simply don't know about */
> - printk(KERN_WARNING
> + pr_warn(
> "efifb: cannot reserve video memory at 0x%lx\n",
> efifb_fix.smem_start);
Move the format to the same line as pr_warn
pr_warn("cannot reserve video memory at 0x%lx\n",
> @@ -218,18 +218,18 @@ static int efifb_probe(struct platform_device *dev)
>
> info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len);
> if (!info->screen_base) {
> - printk(KERN_ERR "efifb: abort, cannot ioremap video memory "
> + pr_err("efifb: abort, cannot ioremap video memory "
> "0x%x @ 0x%lx\n",
> efifb_fix.smem_len, efifb_fix.smem_start);
Coalesce the format and align the arguments
pr_err("abort, cannot ioremap video memory 0x%x @ 0x%lx\n"
efifb_fix.smem_len, efifb_fix.smem_start);
You should end up with something like:
---
drivers/video/fbdev/efifb.c | 57 +++++++++++++++++++++------------------------
1 file changed, 27 insertions(+), 30 deletions(-)
diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c
index 4bfff34..2769bc9 100644
--- a/drivers/video/fbdev/efifb.c
+++ b/drivers/video/fbdev/efifb.c
@@ -6,6 +6,8 @@
*
*/
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
@@ -142,10 +144,10 @@ static int efifb_probe(struct platform_device *dev)
if (!screen_info.pages)
screen_info.pages = 1;
if (!screen_info.lfb_base) {
- printk(KERN_DEBUG "efifb: invalid framebuffer address\n");
+ pr_debug("invalid framebuffer address\n");
return -ENODEV;
}
- printk(KERN_INFO "efifb: probing for efifb\n");
+ pr_info("probing for efifb\n");
/* just assume they're all unset if any are */
if (!screen_info.blue_size) {
@@ -193,14 +195,13 @@ static int efifb_probe(struct platform_device *dev)
} else {
/* We cannot make this fatal. Sometimes this comes from magic
spaces our resource handlers simply don't know about */
- printk(KERN_WARNING
- "efifb: cannot reserve video memory at 0x%lx\n",
+ pr_warn("cannot reserve video memory at 0x%lx\n",
efifb_fix.smem_start);
}
info = framebuffer_alloc(sizeof(u32) * 16, &dev->dev);
if (!info) {
- printk(KERN_ERR "efifb: cannot allocate framebuffer\n");
+ pr_err("cannot allocate framebuffer\n");
err = -ENOMEM;
goto err_release_mem;
}
@@ -218,26 +219,24 @@ static int efifb_probe(struct platform_device *dev)
info->screen_base = ioremap_wc(efifb_fix.smem_start, efifb_fix.smem_len);
if (!info->screen_base) {
- printk(KERN_ERR "efifb: abort, cannot ioremap video memory "
- "0x%x @ 0x%lx\n",
- efifb_fix.smem_len, efifb_fix.smem_start);
+ pr_err("abort, cannot ioremap video memory 0x%x @ 0x%lx\n",
+ efifb_fix.smem_len, efifb_fix.smem_start);
err = -EIO;
goto err_release_fb;
}
- printk(KERN_INFO "efifb: framebuffer at 0x%lx, mapped to 0x%p, "
- "using %dk, total %dk\n",
- efifb_fix.smem_start, info->screen_base,
- size_remap/1024, size_total/1024);
- printk(KERN_INFO "efifb: mode is %dx%dx%d, linelength=%d, pages=%d\n",
- efifb_defined.xres, efifb_defined.yres,
- efifb_defined.bits_per_pixel, efifb_fix.line_length,
- screen_info.pages);
+ pr_info("framebuffer at 0x%lx, mapped to 0x%p, using %dk, total %dk\n",
+ efifb_fix.smem_start, info->screen_base,
+ size_remap / 1024, size_total / 1024);
+ pr_info("mode is %dx%dx%d, linelength=%d, pages=%d\n",
+ efifb_defined.xres, efifb_defined.yres,
+ efifb_defined.bits_per_pixel, efifb_fix.line_length,
+ screen_info.pages);
efifb_defined.xres_virtual = efifb_defined.xres;
efifb_defined.yres_virtual = efifb_fix.smem_len /
efifb_fix.line_length;
- printk(KERN_INFO "efifb: scrolling: redraw\n");
+ pr_info("scrolling: redraw\n");
efifb_defined.yres_virtual = efifb_defined.yres;
/* some dummy values for timing to make fbset happy */
@@ -255,17 +254,15 @@ static int efifb_probe(struct platform_device *dev)
efifb_defined.transp.offset = screen_info.rsvd_pos;
efifb_defined.transp.length = screen_info.rsvd_size;
- printk(KERN_INFO "efifb: %s: "
- "size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
- "Truecolor",
- screen_info.rsvd_size,
- screen_info.red_size,
- screen_info.green_size,
- screen_info.blue_size,
- screen_info.rsvd_pos,
- screen_info.red_pos,
- screen_info.green_pos,
- screen_info.blue_pos);
+ pr_info("Truecolor: size=%d:%d:%d:%d, shift=%d:%d:%d:%d\n",
+ screen_info.rsvd_size,
+ screen_info.red_size,
+ screen_info.green_size,
+ screen_info.blue_size,
+ screen_info.rsvd_pos,
+ screen_info.red_pos,
+ screen_info.green_pos,
+ screen_info.blue_pos);
efifb_fix.ypanstep = 0;
efifb_fix.ywrapstep = 0;
@@ -276,11 +273,11 @@ static int efifb_probe(struct platform_device *dev)
info->flags = FBINFO_FLAG_DEFAULT | FBINFO_MISC_FIRMWARE;
if ((err = fb_alloc_cmap(&info->cmap, 256, 0)) < 0) {
- printk(KERN_ERR "efifb: cannot allocate colormap\n");
+ pr_err("cannot allocate colormap\n");
goto err_unmap;
}
if ((err = register_framebuffer(info)) < 0) {
- printk(KERN_ERR "efifb: cannot register framebuffer\n");
+ pr_err("cannot register framebuffer\n");
goto err_fb_dealoc;
}
fb_info(info, "%s frame buffer device\n", info->fix.id);
--
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