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Message-ID: <20170309210051.GH3929@fieldses.org>
Date:   Thu, 9 Mar 2017 16:00:51 -0500
From:   "J. Bruce Fields" <bfields@...ldses.org>
To:     "Dmitry V. Levin" <ldv@...linux.org>
Cc:     Jeff Layton <jlayton@...chiereds.net>, linux-nfs@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] uapi: fix linux/nfsd/cld.h userspace compilation errors

Why aren't the unitX_t types OK here?

Anyway, assuming this is right I'll apply for 4.12.  (I'm assuming it's
not urgent since this file's always been this way.)

--b.

On Wed, Mar 01, 2017 at 03:12:03AM +0300, Dmitry V. Levin wrote:
> Include <linux/types.h> and consistently use types it provides
> to fix the following linux/nfsd/cld.h userspace compilation errors:
> 
> /usr/include/linux/nfsd/cld.h:40:2: error: unknown type name 'uint16_t'
>   uint16_t cn_len;    /* length of cm_id */
> /usr/include/linux/nfsd/cld.h:46:2: error: unknown type name 'uint8_t'
>   uint8_t  cm_vers;  /* upcall version */
> /usr/include/linux/nfsd/cld.h:47:2: error: unknown type name 'uint8_t'
>   uint8_t  cm_cmd;   /* upcall command */
> /usr/include/linux/nfsd/cld.h:48:2: error: unknown type name 'int16_t'
>   int16_t  cm_status;  /* return code */
> /usr/include/linux/nfsd/cld.h:49:2: error: unknown type name 'uint32_t'
>   uint32_t cm_xid;   /* transaction id */
> /usr/include/linux/nfsd/cld.h:51:3: error: unknown type name 'int64_t'
>    int64_t  cm_gracetime; /* grace period start time */
> 
> Signed-off-by: Dmitry V. Levin <ldv@...linux.org>
> ---
>  include/uapi/linux/nfsd/cld.h | 14 ++++++++------
>  1 file changed, 8 insertions(+), 6 deletions(-)
> 
> diff --git a/include/uapi/linux/nfsd/cld.h b/include/uapi/linux/nfsd/cld.h
> index f14a9ab..ec26027 100644
> --- a/include/uapi/linux/nfsd/cld.h
> +++ b/include/uapi/linux/nfsd/cld.h
> @@ -22,6 +22,8 @@
>  #ifndef _NFSD_CLD_H
>  #define _NFSD_CLD_H
>  
> +#include <linux/types.h>
> +
>  /* latest upcall version available */
>  #define CLD_UPCALL_VERSION 1
>  
> @@ -37,18 +39,18 @@ enum cld_command {
>  
>  /* representation of long-form NFSv4 client ID */
>  struct cld_name {
> -	uint16_t	cn_len;				/* length of cm_id */
> +	__u16		cn_len;				/* length of cm_id */
>  	unsigned char	cn_id[NFS4_OPAQUE_LIMIT];	/* client-provided */
>  } __attribute__((packed));
>  
>  /* message struct for communication with userspace */
>  struct cld_msg {
> -	uint8_t		cm_vers;		/* upcall version */
> -	uint8_t		cm_cmd;			/* upcall command */
> -	int16_t		cm_status;		/* return code */
> -	uint32_t	cm_xid;			/* transaction id */
> +	__u8		cm_vers;		/* upcall version */
> +	__u8		cm_cmd;			/* upcall command */
> +	__s16		cm_status;		/* return code */
> +	__u32		cm_xid;			/* transaction id */
>  	union {
> -		int64_t		cm_gracetime;	/* grace period start time */
> +		__s64		cm_gracetime;	/* grace period start time */
>  		struct cld_name	cm_name;
>  	} __attribute__((packed)) cm_u;
>  } __attribute__((packed));
> -- 
> ldv

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