Hi Shreeya,

On Mon, 19 Feb 2018 18:43:45 +0530
Shreeya Patel <shreeya.patel23...@gmail.com> wrote:

> The log levels embedded with the name are more concise than
> printk.
> Replace printks having a log level with the appropriate
> pr_*macro.
> 
> Signed-off-by: Shreeya Patel <shreeya.patel23...@gmail.com>
> ---
> 
> Changes in v2:
>   -Merge previous patches of the patchset regarding replacement
> of printk with pr_*macro, into single patch.
> 
> 
>  drivers/mtd/nand/cs553x_nand.c   |  9 ++---
>  drivers/mtd/nand/diskonchip.c    | 76 
> +++++++++++++++++++++-------------------
>  drivers/mtd/nand/fsl_elbc_nand.c |  2 +-
>  drivers/mtd/nand/fsl_ifc_nand.c  |  2 +-
>  drivers/mtd/nand/mxc_nand.c      |  2 +-
>  drivers/mtd/nand/nand_bch.c      | 12 +++----
>  drivers/mtd/nand/nandsim.c       | 10 +++---
>  drivers/mtd/nand/r852.c          |  2 +-
>  drivers/mtd/nand/r852.h          |  6 ++--
>  drivers/mtd/nand/sm_common.c     |  5 ++-
>  10 files changed, 65 insertions(+), 61 deletions(-)
> 

[...]

>  
> diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
> index c3aa53c..b97d88c 100644
> --- a/drivers/mtd/nand/diskonchip.c
> +++ b/drivers/mtd/nand/diskonchip.c

[...]

> @@ -438,7 +438,7 @@ static void __init doc2000_count_chips(struct mtd_info 
> *mtd)
>                       break;
>       }
>       doc->chips_per_floor = i;
> -     printk(KERN_DEBUG "Detected %d chips per floor.\n", i);
> +     pr_info("Detected %d chips per floor.\n", i);

Should be pr_debug() here.

>  }
>  

[...]

> diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
> index 246b439..4e5f817 100644
> --- a/drivers/mtd/nand/nandsim.c
> +++ b/drivers/mtd/nand/nandsim.c
> @@ -184,15 +184,15 @@ MODULE_PARM_DESC(bch,            "Enable BCH ecc and 
> set how many bits should "
>  
>  /* Simulator's output macros (logging, debugging, warning, error) */
>  #define NS_LOG(args...) \
> -     do { if (log) printk(KERN_DEBUG NS_OUTPUT_PREFIX " log: " args); } 
> while(0)
> +     do { if (log) pr_debug(NS_OUTPUT_PREFIX " log: " args); } while(0)

You could define pr_fmt() to avoid passing NS_OUTPUT_PREFIX. Something
like:

#define pr_fmt(fmt)     "[nandsim]" fmt

(remember to put this definition before include directives).

Then, all you have to do is

do { if (log) pr_debug(" log: " args); } while(0)

>  #define NS_DBG(args...) \
> -     do { if (dbg) printk(KERN_DEBUG NS_OUTPUT_PREFIX " debug: " args); } 
> while(0)
> +     do { if (dbg) pr_debug(NS_OUTPUT_PREFIX " debug: " args); } while(0)
>  #define NS_WARN(args...) \
> -     do { printk(KERN_WARNING NS_OUTPUT_PREFIX " warning: " args); } while(0)
> +     do { pr_warn(NS_OUTPUT_PREFIX " warning: " args); } while(0)
>  #define NS_ERR(args...) \
> -     do { printk(KERN_ERR NS_OUTPUT_PREFIX " error: " args); } while(0)
> +     do { pr_err(NS_OUTPUT_PREFIX " error: " args); } while(0)
>  #define NS_INFO(args...) \
> -     do { printk(KERN_INFO NS_OUTPUT_PREFIX " " args); } while(0)
> +     do { pr_info(NS_OUTPUT_PREFIX " " args); } while(0)
>  
>  /* Busy-wait delay macros (microseconds, milliseconds) */
>  #define NS_UDELAY(us) \
> diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c
> index fc9287a..3d54c6a 100644
> --- a/drivers/mtd/nand/r852.c
> +++ b/drivers/mtd/nand/r852.c
> @@ -935,7 +935,7 @@ static int  r852_probe(struct pci_dev *pci_dev, const 
> struct pci_device_id *id)
>               &dev->card_detect_work, 0);
>  
>  
> -     printk(KERN_NOTICE DRV_NAME ": driver loaded successfully\n");
> +     pr_notice(DRV_NAME ": driver loaded successfully\n");

Same here:

#define pr_fmt(fmt)     DRV_NAME fmt

>       return 0;
>  
>  error10:
> diff --git a/drivers/mtd/nand/r852.h b/drivers/mtd/nand/r852.h
> index 8713c57..63de9b6 100644
> --- a/drivers/mtd/nand/r852.h
> +++ b/drivers/mtd/nand/r852.h
> @@ -149,12 +149,12 @@ struct r852_device {
>  
>  #define dbg(format, ...) \
>       if (debug) \
> -             printk(KERN_DEBUG DRV_NAME ": " format "\n", ## __VA_ARGS__)
> +             pr_debug(DRV_NAME ": " format "\n", ## __VA_ARGS__)
>  
>  #define dbg_verbose(format, ...) \
>       if (debug > 1) \
> -             printk(KERN_DEBUG DRV_NAME ": " format "\n", ## __VA_ARGS__)
> +             pr_debug(DRV_NAME ": " format "\n", ## __VA_ARGS__)
>  

And here as well.

Regards,

Boris

-- 
Boris Brezillon, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
http://bootlin.com

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