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staging: lustre: lnet: make sure lnet data not greater than LIBCFS_IOC_DATA_MAX

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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@intel.com>
Intel-bug-id: https://jira.hpdd.intel.com/browse/LU-5435
Reviewed-on: http://review.whamcloud.com/11313
Reviewed-by: Bobi Jam <bobijam@gmail.com>
Reviewed-by: Johann Lombardi <johann.lombardi@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Liang Zhen 2016-03-22 19:03:58 -04:00 committed by Greg Kroah-Hartman
parent ed2f549dc0
commit da4e589837
1 changed files with 4 additions and 0 deletions
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4
drivers/staging/lustre/lnet/lnet/api-ni.c
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@ -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);