From: Liang Zhen <liang.zhen@xxxxxxxxx> Fail to compile if largest LNet user land data structures passed to kernel are larger than LIBCFS_IOC_DATA_MAX Signed-off-by: Liang Zhen <liang.zhen@xxxxxxxxx> Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435 Reviewed-on: http://review.whamcloud.com/11313 Reviewed-by: Bobi Jam <bobijam@xxxxxxxxx> Reviewed-by: Johann Lombardi <johann.lombardi@xxxxxxxxx> Reviewed-by: Oleg Drokin <oleg.drokin@xxxxxxxxx> --- drivers/staging/lustre/lnet/lnet/api-ni.c | 4 ++++ 1 files changed, 4 insertions(+), 0 deletions(-) diff --git a/drivers/staging/lustre/lnet/lnet/api-ni.c b/drivers/staging/lustre/lnet/lnet/api-ni.c index 8764755..f825784 100644 --- a/drivers/staging/lustre/lnet/lnet/api-ni.c +++ b/drivers/staging/lustre/lnet/lnet/api-ni.c @@ -1864,6 +1864,10 @@ LNetCtl(unsigned int cmd, void *arg) int rc; unsigned long secs_passed; + BUILD_BUG_ON(LIBCFS_IOC_DATA_MAX < + sizeof(struct lnet_ioctl_net_config) + + sizeof(struct lnet_ioctl_config_data)); + switch (cmd) { case IOC_LIBCFS_GET_NI: rc = LNetGetId(data->ioc_count, &id); -- 1.7.1 _______________________________________________ devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxx http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
