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

Stephen Rothwell
2021-10-28T05:11:07Z

[-- Attachment #1: Type: text/plain, Size: 2120 bytes --]

Hi all,

On Mon, 25 Oct 2021 15:11:44 +1100 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> After merging the tip tree, today's linux-next build (x86_64 allmodconfig)
> failed like this:
>
> arch/x86/kernel/fpu/core.c: In function 'fpu_alloc_guest_fpstate':
> arch/x86/kernel/fpu/core.c:187:12: error: implicit declaration of function 'vzalloc'; did you mean 'kzalloc'? [-Werror=implicit-function-declaration]
> 187 | fpstate = vzalloc(size);
> | ^~~~~~~
> | kzalloc
> arch/x86/kernel/fpu/core.c:187:10: error: assignment to 'struct fpstate *' from 'int' makes pointer from integer without a cast [-Werror=int-conversion]
> 187 | fpstate = vzalloc(size);
> | ^
> arch/x86/kernel/fpu/core.c: In function 'fpu_free_guest_fpstate':
> arch/x86/kernel/fpu/core.c:212:2: error: implicit declaration of function 'vfree'; did you mean 'kfree'? [-Werror=implicit-function-declaration]
> 212 | vfree(fps);
> | ^~~~~
> | kfree
> cc1: all warnings being treated as errors
>
> Caused by commit
>
> 69f6ed1d14c6 ("x86/fpu: Provide infrastructure for KVM FPU cleanup")
>
> I have applied the following patch for today (because it was quicker
> than using the tip tree from next-20211022).
>
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Mon, 25 Oct 2021 15:04:13 +1100
> Subject: [PATCH] x86/fpu: include vmalloc.h for vzalloc etc
>
> Fixes: 69f6ed1d14c6 ("x86/fpu: Provide infrastructure for KVM FPU cleanup")
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
> arch/x86/kernel/fpu/core.c | 1 +
> 1 file changed, 1 insertion(+)
>
> diff --git a/arch/x86/kernel/fpu/core.c b/arch/x86/kernel/fpu/core.c
> index 9c475e2efd4d..c55013fc82ab 100644
> --- a/arch/x86/kernel/fpu/core.c
> +++ b/arch/x86/kernel/fpu/core.c
> @@ -16,6 +16,7 @@
>
> #include <linux/hardirq.h>
> #include <linux/pkeys.h>
> +#include <linux/vmalloc.h>
>
> #include "context.h"
> #include "internal.h"
> --
> 2.33.0

This build failure has returned today :-(

--
Cheers,
Stephen Rothwell

[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 488 bytes --]