diff mbox series

[v2,1/5] lib/scatterlist: use consistent sg_copy_buffer() return type

Message ID 20201026190646.8727-2-ddiss@suse.de (mailing list archive)
State Superseded
Headers show
Series scsi: target: COMPARE AND WRITE miscompare sense | expand

Commit Message

David Disseldorp Oct. 26, 2020, 7:06 p.m. UTC
sg_copy_buffer() returns a size_t with the number of bytes copied.
Return 0 instead of false if the copy is skipped.

Signed-off-by: David Disseldorp <ddiss@suse.de>
---
 lib/scatterlist.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Douglas Gilbert Oct. 26, 2020, 8:50 p.m. UTC | #1
On 2020-10-26 3:06 p.m., David Disseldorp wrote:
> sg_copy_buffer() returns a size_t with the number of bytes copied.
> Return 0 instead of false if the copy is skipped.
> 
> Signed-off-by: David Disseldorp <ddiss@suse.de>
> ---
>   lib/scatterlist.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/scatterlist.c b/lib/scatterlist.c
> index 0a482ef988e5..a59778946404 100644
> --- a/lib/scatterlist.c
> +++ b/lib/scatterlist.c
> @@ -933,7 +933,7 @@ size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,
>   	sg_miter_start(&miter, sgl, nents, sg_flags);
>   
>   	if (!sg_miter_skip(&miter, skip))
> -		return false;
> +		return 0;
>   
>   	while ((offset < buflen) && sg_miter_next(&miter)) {
>   		unsigned int len;
> 

This one probably should be sent by itself as a fix to:
    linux-block@vger.kernel.org

and cc-ed to:
    axboe@kernel.dk

on the assumption that Jens Axboe is the maintainer of lib/scatterlist.c .
He put a fix of mine in sgl_alloc_order() into the kernel recently.

Otherwise:
Reviewed-by: Douglas Gilbert <dgilbert@interlog.com>
David Disseldorp Oct. 26, 2020, 9:05 p.m. UTC | #2
On Mon, 26 Oct 2020 16:50:53 -0400, Douglas Gilbert wrote:

> On 2020-10-26 3:06 p.m., David Disseldorp wrote:
> > sg_copy_buffer() returns a size_t with the number of bytes copied.
> > Return 0 instead of false if the copy is skipped.
> > 
> > Signed-off-by: David Disseldorp <ddiss@suse.de>
> > ---
> >   lib/scatterlist.c | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> > 
> > diff --git a/lib/scatterlist.c b/lib/scatterlist.c
> > index 0a482ef988e5..a59778946404 100644
> > --- a/lib/scatterlist.c
> > +++ b/lib/scatterlist.c
> > @@ -933,7 +933,7 @@ size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,
> >   	sg_miter_start(&miter, sgl, nents, sg_flags);
> >   
> >   	if (!sg_miter_skip(&miter, skip))
> > -		return false;
> > +		return 0;
> >   
> >   	while ((offset < buflen) && sg_miter_next(&miter)) {
> >   		unsigned int len;
> >   
> 
> This one probably should be sent by itself as a fix to:
>     linux-block@vger.kernel.org
> 
> and cc-ed to:
>     axboe@kernel.dk
> 
> on the assumption that Jens Axboe is the maintainer of lib/scatterlist.c .
> He put a fix of mine in sgl_alloc_order() into the kernel recently.
> 
> Otherwise:
> Reviewed-by: Douglas Gilbert <dgilbert@interlog.com>

Sent. Thanks Douglas!
diff mbox series

Patch

diff --git a/lib/scatterlist.c b/lib/scatterlist.c
index 0a482ef988e5..a59778946404 100644
--- a/lib/scatterlist.c
+++ b/lib/scatterlist.c
@@ -933,7 +933,7 @@  size_t sg_copy_buffer(struct scatterlist *sgl, unsigned int nents, void *buf,
 	sg_miter_start(&miter, sgl, nents, sg_flags);
 
 	if (!sg_miter_skip(&miter, skip))
-		return false;
+		return 0;
 
 	while ((offset < buflen) && sg_miter_next(&miter)) {
 		unsigned int len;