[dm-devel] [PATCH 09/11] block: remove unsed param in blk_fill_rwbs()

[Christoph Hellwig]

On Mon, Jun 29, 2020 at 04:43:12PM -0700, Chaitanya Kulkarni wrote:
> The last parameter for the function blk_fill_rwbs() was added in
> 5782138e47 ("tracing/events: convert block trace points to
> TRACE_EVENT()") in order to signal read request and use of that parameter
> was replaced with using switch case REQ_OP_READ with
> 1b9a9ab78b0 ("blktrace: use op accessors"), but the parameter was never
> removed.
> 
> This patch removes unused parameter which also allows us to merge existing
> trace points in the following patch.
> 
> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni at wdc.com>
> ---
>  include/linux/blktrace_api.h  |  2 +-
>  include/trace/events/bcache.h | 10 +++++-----
>  include/trace/events/block.h  | 19 +++++++++----------
>  kernel/trace/blktrace.c       |  2 +-
>  4 files changed, 16 insertions(+), 17 deletions(-)
> 
> diff --git a/include/linux/blktrace_api.h b/include/linux/blktrace_api.h
> index 3b6ff5902edc..80123eebf005 100644
> --- a/include/linux/blktrace_api.h
> +++ b/include/linux/blktrace_api.h
> @@ -120,7 +120,7 @@ struct compat_blk_user_trace_setup {
>  
>  #endif
>  
> -extern void blk_fill_rwbs(char *rwbs, unsigned int op, int bytes);
> +extern void blk_fill_rwbs(char *rwbs, unsigned int op);

You might want to drop the extern while you're at it.