On Fri, 26 Feb 2016 12:59:43 +0100 Arnd Bergmann <arnd@xxxxxxxx> wrote:
> After commit cde70140fed8 ("mm/gup: Overload get_user_pages() functions"),
> we get warning for this file, as it calls get_user_pages() with eight
> arguments after the change of the calling convention to use only six:
>
> drivers/platform/goldfish/goldfish_pipe.c: In function 'goldfish_pipe_read_write':
> drivers/platform/goldfish/goldfish_pipe.c:312:3: error: 'get_user_pages8' is deprecated [-Werror=deprecated-declarations]
>
> This removes the first two arguments, which are now the default.
>
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
> ---
> The API change is currently only in the mm/pkeys branch of the
> tip tree, while the goldfish_pipe driver started using the
> old API in the staging/next branch.
>
> Andrew could pick it up into linux-mm in the meantime, or I can
> resend it at some later point if nobody else does the change
> after 4.6-rc1.
This is one for Ingo.
From: Arnd Bergmann <arnd@xxxxxxxx>
Subject: staging/goldfish: use 6-arg get_user_pages()
After commit cde70140fed8 ("mm/gup: Overload get_user_pages() functions"),
we get warning for this file, as it calls get_user_pages() with eight
arguments after the change of the calling convention to use only six:
drivers/platform/goldfish/goldfish_pipe.c: In function 'goldfish_pipe_read_write':
drivers/platform/goldfish/goldfish_pipe.c:312:3: error: 'get_user_pages8' is deprecated [-Werror=deprecated-declarations]
This removes the first two arguments, which are now the default.
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/platform/goldfish/goldfish_pipe.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff -puN drivers/platform/goldfish/goldfish_pipe.c~staging-goldfish-use-6-arg-get_user_pages drivers/platform/goldfish/goldfish_pipe.c
--- a/drivers/platform/goldfish/goldfish_pipe.c~staging-goldfish-use-6-arg-get_user_pages
+++ a/drivers/platform/goldfish/goldfish_pipe.c
@@ -309,8 +309,7 @@ static ssize_t goldfish_pipe_read_write(
* much memory to the process.
*/
down_read(¤t->mm->mmap_sem);
- ret = get_user_pages(current, current->mm, address, 1,
- !is_write, 0, &page, NULL);
+ ret = get_user_pages(address, 1, !is_write, 0, &page, NULL);
up_read(¤t->mm->mmap_sem);
if (ret < 0)
break;
_
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