Re: [PATCH v2 01/11] em28xx-i2c: replace printk() with the corresponding em28xx macros

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Em Mon, 04 Mar 2013 19:27:12 +0100
Frank Schäfer <fschaefer.oss@xxxxxxxxxxxxxx> escreveu:

> Am 04.03.2013 19:09, schrieb Mauro Carvalho Chehab:
> > Em Sun,  3 Mar 2013 20:37:34 +0100
> > Frank Schäfer <fschaefer.oss@xxxxxxxxxxxxxx> escreveu:
> >
> >> Reduces the number of characters/lines, unifies the code and improves readability.
> > Had you actually test this patch? The reason why printk() is used on some
> > places is because dev->name is not available early.
> 
> The em28xx-specific macros are using printk, too.
> They are actually just an abbreviation of the current printks (saving us
> the KERN_XY and the the dev->name parameter).
> See em28xx.h.

Hmm... em28xx dev->name used to be initialized after I2C register. 
With the current logic this patch makes sense ;)

Ok, I'm requeuing it.

> > That's said, it makes sense to replace all those em28xx-specific printk
> > functions by the standard pr_fmt-based ones (pr_err, pr_info, pr_debug, etc).
> 
> Yeah, I agree.
> But that would be a separate patch series... ;)
> I can do that (later) if you want.

IMHO, that would be a nice cleanup. Of course, there's no hush for such
cleanups ;)
> 
> Regards,
> Frank
> 
> >
> > Regards,
> > Mauro
> >
> >> Signed-off-by: Frank Schäfer <fschaefer.oss@xxxxxxxxxxxxxx>
> >> ---
> >>  drivers/media/usb/em28xx/em28xx-i2c.c |   55 ++++++++++++++-------------------
> >>  1 Datei geändert, 24 Zeilen hinzugefügt(+), 31 Zeilen entfernt(-)
> >>
> >> diff --git a/drivers/media/usb/em28xx/em28xx-i2c.c b/drivers/media/usb/em28xx/em28xx-i2c.c
> >> index 8532c1d..8819b54 100644
> >> --- a/drivers/media/usb/em28xx/em28xx-i2c.c
> >> +++ b/drivers/media/usb/em28xx/em28xx-i2c.c
> >> @@ -399,7 +399,7 @@ static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)
> >>  	/* Check if board has eeprom */
> >>  	err = i2c_master_recv(&dev->i2c_client, &buf, 0);
> >>  	if (err < 0) {
> >> -		em28xx_errdev("board has no eeprom\n");
> >> +		em28xx_info("board has no eeprom\n");
> >>  		memset(eedata, 0, len);
> >>  		return -ENODEV;
> >>  	}
> >> @@ -408,8 +408,7 @@ static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)
> >>  
> >>  	err = i2c_master_send(&dev->i2c_client, &buf, 1);
> >>  	if (err != 1) {
> >> -		printk(KERN_INFO "%s: Huh, no eeprom present (err=%d)?\n",
> >> -		       dev->name, err);
> >> +		em28xx_errdev("failed to read eeprom (err=%d)\n", err);
> >>  		return err;
> >>  	}
> >>  
> >> @@ -426,9 +425,7 @@ static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)
> >>  
> >>  		if (block !=
> >>  		    (err = i2c_master_recv(&dev->i2c_client, p, block))) {
> >> -			printk(KERN_WARNING
> >> -			       "%s: i2c eeprom read error (err=%d)\n",
> >> -			       dev->name, err);
> >> +			em28xx_errdev("i2c eeprom read error (err=%d)\n", err);
> >>  			return err;
> >>  		}
> >>  		size -= block;
> >> @@ -436,7 +433,7 @@ static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)
> >>  	}
> >>  	for (i = 0; i < len; i++) {
> >>  		if (0 == (i % 16))
> >> -			printk(KERN_INFO "%s: i2c eeprom %02x:", dev->name, i);
> >> +			em28xx_info("i2c eeprom %02x:", i);
> >>  		printk(" %02x", eedata[i]);
> >>  		if (15 == (i % 16))
> >>  			printk("\n");
> >> @@ -445,55 +442,51 @@ static int em28xx_i2c_eeprom(struct em28xx *dev, unsigned char *eedata, int len)
> >>  	if (em_eeprom->id == 0x9567eb1a)
> >>  		dev->hash = em28xx_hash_mem(eedata, len, 32);
> >>  
> >> -	printk(KERN_INFO "%s: EEPROM ID= 0x%08x, EEPROM hash = 0x%08lx\n",
> >> -	       dev->name, em_eeprom->id, dev->hash);
> >> +	em28xx_info("EEPROM ID = 0x%08x, EEPROM hash = 0x%08lx\n",
> >> +		    em_eeprom->id, dev->hash);
> >>  
> >> -	printk(KERN_INFO "%s: EEPROM info:\n", dev->name);
> >> +	em28xx_info("EEPROM info:\n");
> >>  
> >>  	switch (em_eeprom->chip_conf >> 4 & 0x3) {
> >>  	case 0:
> >> -		printk(KERN_INFO "%s:\tNo audio on board.\n", dev->name);
> >> +		em28xx_info("\tNo audio on board.\n");
> >>  		break;
> >>  	case 1:
> >> -		printk(KERN_INFO "%s:\tAC97 audio (5 sample rates)\n",
> >> -				 dev->name);
> >> +		em28xx_info("\tAC97 audio (5 sample rates)\n");
> >>  		break;
> >>  	case 2:
> >> -		printk(KERN_INFO "%s:\tI2S audio, sample rate=32k\n",
> >> -				 dev->name);
> >> +		em28xx_info("\tI2S audio, sample rate=32k\n");
> >>  		break;
> >>  	case 3:
> >> -		printk(KERN_INFO "%s:\tI2S audio, 3 sample rates\n",
> >> -				 dev->name);
> >> +		em28xx_info("\tI2S audio, 3 sample rates\n");
> >>  		break;
> >>  	}
> >>  
> >>  	if (em_eeprom->chip_conf & 1 << 3)
> >> -		printk(KERN_INFO "%s:\tUSB Remote wakeup capable\n", dev->name);
> >> +		em28xx_info("\tUSB Remote wakeup capable\n");
> >>  
> >>  	if (em_eeprom->chip_conf & 1 << 2)
> >> -		printk(KERN_INFO "%s:\tUSB Self power capable\n", dev->name);
> >> +		em28xx_info("\tUSB Self power capable\n");
> >>  
> >>  	switch (em_eeprom->chip_conf & 0x3) {
> >>  	case 0:
> >> -		printk(KERN_INFO "%s:\t500mA max power\n", dev->name);
> >> +		em28xx_info("\t500mA max power\n");
> >>  		break;
> >>  	case 1:
> >> -		printk(KERN_INFO "%s:\t400mA max power\n", dev->name);
> >> +		em28xx_info("\t400mA max power\n");
> >>  		break;
> >>  	case 2:
> >> -		printk(KERN_INFO "%s:\t300mA max power\n", dev->name);
> >> +		em28xx_info("\t300mA max power\n");
> >>  		break;
> >>  	case 3:
> >> -		printk(KERN_INFO "%s:\t200mA max power\n", dev->name);
> >> +		em28xx_info("\t200mA max power\n");
> >>  		break;
> >>  	}
> >> -	printk(KERN_INFO "%s:\tTable at 0x%02x, strings=0x%04x, 0x%04x, 0x%04x\n",
> >> -				dev->name,
> >> -				em_eeprom->string_idx_table,
> >> -				em_eeprom->string1,
> >> -				em_eeprom->string2,
> >> -				em_eeprom->string3);
> >> +	em28xx_info("\tTable at offset 0x%02x, strings=0x%04x, 0x%04x, 0x%04x\n",
> >> +		    em_eeprom->string_idx_table,
> >> +		    em_eeprom->string1,
> >> +		    em_eeprom->string2,
> >> +		    em_eeprom->string3);
> >>  
> >>  	return 0;
> >>  }
> >> @@ -570,8 +563,8 @@ void em28xx_do_i2c_scan(struct em28xx *dev)
> >>  		if (rc < 0)
> >>  			continue;
> >>  		i2c_devicelist[i] = i;
> >> -		printk(KERN_INFO "%s: found i2c device @ 0x%x [%s]\n",
> >> -		       dev->name, i << 1, i2c_devs[i] ? i2c_devs[i] : "???");
> >> +		em28xx_info("found i2c device @ 0x%x [%s]\n",
> >> +			    i << 1, i2c_devs[i] ? i2c_devs[i] : "???");
> >>  	}
> >>  
> >>  	dev->i2c_hash = em28xx_hash_mem(i2c_devicelist,
> >
> 


-- 

Cheers,
Mauro
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