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

[Stephen Rothwell <sfr@canb.auug.org.au>]

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Hi all,

On Wed, 8 Jul 2020 14:00:34 +1000 Stephen Rothwell <sfr@canb.auug.org.au> wrote:
>
> After merging the security tree, today's linux-next build (powerpc
> ppc64_defconfig) failed like this:
> 
> fs/anon_inodes.c: In function 'anon_inode_make_secure_inode':
> fs/anon_inodes.c:70:10: error: implicit declaration of function 'security_inode_init_security_anon'; did you mean 'security_inode_init_security'? [-Werror=implicit-function-declaration]
>    70 |  error = security_inode_init_security_anon(
>       |          ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>       |          security_inode_init_security
> 
> Caused by commit
> 
>   2749d3f84a70 ("Add a new LSM-supporting anonymous inode interface")
> 
> # CONFIG_SECURITY is not set
> 
> Also, the explicit include of linux/security.h is missing ...
> 
> I have added the following patch for today.
> 
> From b2bae25c9b715e06f7e802ec7b51cfbfec046e6c Mon Sep 17 00:00:00 2001
> From: Stephen Rothwell <sfr@canb.auug.org.au>
> Date: Wed, 8 Jul 2020 13:43:01 +1000
> Subject: [PATCH] fix up for "Add a new LSM-supporting anonymous inode interface"
> 
> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
> ---
>  fs/anon_inodes.c         | 1 +
>  include/linux/security.h | 7 +++++++
>  2 files changed, 8 insertions(+)
> 
> diff --git a/fs/anon_inodes.c b/fs/anon_inodes.c
> index f87f221167cf..25d92c64411e 100644
> --- a/fs/anon_inodes.c
> +++ b/fs/anon_inodes.c
> @@ -21,6 +21,7 @@
>  #include <linux/magic.h>
>  #include <linux/anon_inodes.h>
>  #include <linux/pseudo_fs.h>
> +#include <linux/security.h>
>  
>  #include <linux/uaccess.h>
>  
> diff --git a/include/linux/security.h b/include/linux/security.h
> index 95c133a8f8bb..7c6b3dcf4721 100644
> --- a/include/linux/security.h
> +++ b/include/linux/security.h
> @@ -735,6 +735,13 @@ static inline int security_inode_init_security(struct inode *inode,
>  	return 0;
>  }
>  
> +static inline int security_inode_init_security_anon(struct inode *inode,
> +						    const struct qstr *name,
> +						    const struct inode *context_inode)
> +{
> +	return 0;
> +}
> +
>  static inline int security_old_inode_init_security(struct inode *inode,
>  						   struct inode *dir,
>  						   const struct qstr *qstr,

I am still applying the above patch ...

-- 
Cheers,
Stephen Rothwell

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