From: Filip Bozuta Date: Sat, 5 Sep 2020 16:38:02 +0000 (+0200) Subject: linux-user: Protect btrfs ioctl target definitions X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=5d5d17522f59696d18fdbc51984c7b4ebf191f7c;p=qemu.git linux-user: Protect btrfs ioctl target definitions Target definitions of btrfs ioctls in 'syscall_defs.h' use the value BTRFS_IOCTL_MAGIC that is defined header 'btrfs.h'. This header is not available in kernel versions before 3.9. For that reason, these target ioctl definitions should be enwrapped in an #ifdef directive to check whether the 'btrfs.h' header is available as to not cause build errors on older Linux systems. Signed-off-by: Filip Bozuta Reviewed-by: Laurent Vivier Message-Id: <20200905163802.2666-1-Filip.Bozuta@syrmia.com> Signed-off-by: Laurent Vivier --- diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h index 33a414c50f..731c3d5341 100644 --- a/linux-user/syscall_defs.h +++ b/linux-user/syscall_defs.h @@ -1006,6 +1006,7 @@ struct target_rtc_pll_info { #define TARGET_FS_IOC32_SETVERSION TARGET_IOW('v', 2, int) /* btrfs ioctls */ +#ifdef CONFIG_BTRFS #define TARGET_BTRFS_IOC_SNAP_CREATE TARGET_IOWU(BTRFS_IOCTL_MAGIC, 1) #define TARGET_BTRFS_IOC_SCAN_DEV TARGET_IOWU(BTRFS_IOCTL_MAGIC, 4) #define TARGET_BTRFS_IOC_FORGET_DEV TARGET_IOWU(BTRFS_IOCTL_MAGIC, 5) @@ -1041,6 +1042,7 @@ struct target_rtc_pll_info { #define TARGET_BTRFS_IOC_GET_SUBVOL_INFO TARGET_IORU(BTRFS_IOCTL_MAGIC, 60) #define TARGET_BTRFS_IOC_GET_SUBVOL_ROOTREF TARGET_IOWRU(BTRFS_IOCTL_MAGIC, 61) #define TARGET_BTRFS_IOC_INO_LOOKUP_USER TARGET_IOWRU(BTRFS_IOCTL_MAGIC, 62) +#endif /* usb ioctls */ #define TARGET_USBDEVFS_CONTROL TARGET_IOWRU('U', 0)