On Thu, 11 Jan 2018 10:28:22 +0530
venkat.prashanth2498@xxxxxxxxx wrote:
> From: Venkat Prashanth B U <venkat.prashanth2498@xxxxxxxxx>
>
> Use DEFINE_DEBUGFS_ATTRIBUTE rather than DEFINE_SIMPLE_ATTRIBUTE
> for debugfs files.
>
> Semantic patch information:
> Rationale: DEFINE_SIMPLE_ATTRIBUTE + debugfs_create_file()
> imposes some significant overhead as compared to
> DEFINE_DEBUGFS_ATTRIBUTE + debugfs_create_file_unsafe().
>
> Generated by: scripts/coccinelle/api/debugfs/debugfs_simple_attr.cocci
>
> Signed-off-by: Venkat Prashanth B U <venkat.prashanth2498@xxxxxxxxx>
Please read the code you are patching. The indentation in this
patch is wrong and does not reflect what it is doing.
Jonathan
> ---
> Change Log v1:-
> - Fixed indentation issue.
> - changed the subject line appropriately.
> ---
> drivers/iio/imu/adis16400_core.c | 13 +++++++------
> 1 file changed, 7 insertions(+), 6 deletions(-)
>
> diff --git a/drivers/iio/imu/adis16400_core.c b/drivers/iio/imu/adis16400_core.c
> index 46a5690..b199c73 100644
> --- a/drivers/iio/imu/adis16400_core.c
> +++ b/drivers/iio/imu/adis16400_core.c
> @@ -85,7 +85,7 @@ static int adis16400_show_product_id(void *arg, u64 *val)
>
> return 0;
> }
> -DEFINE_SIMPLE_ATTRIBUTE(adis16400_product_id_fops,
> +DEFINE_DEBUGFS_ATTRIBUTE(adis16400_product_id_fops,
> adis16400_show_product_id, NULL, "%lld\n");
>
> static int adis16400_show_flash_count(void *arg, u64 *val)
> @@ -102,7 +102,7 @@ static int adis16400_show_flash_count(void *arg, u64 *val)
>
> return 0;
> }
> -DEFINE_SIMPLE_ATTRIBUTE(adis16400_flash_count_fops,
> +DEFINE_DEBUGFS_ATTRIBUTE(adis16400_flash_count_fops,
> adis16400_show_flash_count, NULL, "%lld\n");
>
> static int adis16400_debugfs_init(struct iio_dev *indio_dev)
> @@ -110,15 +110,16 @@ static int adis16400_debugfs_init(struct iio_dev *indio_dev)
> struct adis16400_state *st = iio_priv(indio_dev);
>
> if (st->variant->flags & ADIS16400_HAS_SERIAL_NUMBER)
> - debugfs_create_file("serial_number", 0400,
> + debugfs_create_file_unsafe("serial_number", 0400,
> indio_dev->debugfs_dentry, st,
> &adis16400_serial_number_fops);
> if (st->variant->flags & ADIS16400_HAS_PROD_ID)
> - debugfs_create_file("product_id", 0400,
> + debugfs_create_file_unsafe("product_id", 0400,
> indio_dev->debugfs_dentry, st,
> &adis16400_product_id_fops);
> - debugfs_create_file("flash_count", 0400, indio_dev->debugfs_dentry,
> - st, &adis16400_flash_count_fops);
> + debugfs_create_file_unsafe("flash_count", 0400,
> + indio_dev->debugfs_dentry, st,
> + &adis16400_flash_count_fops);
>
> return 0;
> }
> --
> 1.9.1
>
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