linux-kernel - Re: linux-next: build failure after merge of the block tree

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Date:   Thu, 1 Jun 2023 08:27:12 +0000
From:   Johannes Thumshirn <Johannes.Thumshirn@....com>
To:     Stephen Rothwell <sfr@...b.auug.org.au>,
        Jens Axboe <axboe@...nel.dk>
CC:     Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Linux Next Mailing List <linux-next@...r.kernel.org>
Subject: Re: linux-next: build failure after merge of the block tree

On 01.06.23 02:50, Stephen Rothwell wrote:
> Hi all,
> 
> After merging the block tree, today's linux-next build (x86_64
> allmodconfig) failed like this:
> 
> In file included from include/linux/slab.h:15,
>                  from drivers/md/raid1.c:26:
> drivers/md/raid1.c: In function 'alloc_behind_master_bio':
> include/linux/gfp.h:320:36: error: passing argument 1 of 'free_pages' makes integer from pointer without a cast [-Werror=int-conversion]
>   320 | #define free_page(addr) free_pages((addr), 0)
>       |                                    ^~~~~~
>       |                                    |
>       |                                    struct page *
> drivers/md/raid1.c:1151:25: note: in expansion of macro 'free_page'
>  1151 |                         free_page(page);
>       |                         ^~~~~~~~~
> include/linux/gfp.h:303:38: note: expected 'long unsigned int' but argument is of type 'struct page *'
>   303 | extern void free_pages(unsigned long addr, unsigned int order);
>       |                        ~~~~~~~~~~~~~~^~~~
> 
> Caused by commit
> 
>   6473bc325644 ("md: check for failure when adding pages in alloc_behind_master_bio")
> 
> I have used the block tree from next-20230531 for today.
> 

This obviously has to be:
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index ff89839455ec..3570da63969b 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -1148,7 +1148,7 @@ static void alloc_behind_master_bio(struct r1bio *r1_bio,
                        goto free_pages;
 
                if (!bio_add_page(behind_bio, page, len, 0)) {
-                       free_page(page);
+                       put_page(page);
                        goto free_pages;
                }
 

But I wonder why I dint see it in my allmodconfig build. 

Jens can you fold that in or do you want me to update the patch?