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authorFilip Bozuta <Filip.Bozuta@syrmia.com>2020-09-05 18:38:02 +0200
committerLaurent Vivier <laurent@vivier.eu>2020-09-06 12:29:19 +0200
commit5d5d17522f59696d18fdbc51984c7b4ebf191f7c (patch)
tree00a264e55c14c05e35f82ff31bf4f1c3e27df5a4 /linux-user/syscall_defs.h
parent4d6e318af00eab64977370163404fece78d56ef3 (diff)
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 <Filip.Bozuta@syrmia.com> Reviewed-by: Laurent Vivier <laurent@vivier.eu> Message-Id: <20200905163802.2666-1-Filip.Bozuta@syrmia.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Diffstat (limited to 'linux-user/syscall_defs.h')
-rw-r--r--linux-user/syscall_defs.h2
1 files changed, 2 insertions, 0 deletions
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)