K 10
svn:author
V 3
erj
K 8
svn:date
V 27
2019-04-17T23:09:06.575505Z
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svn:log
V 538
MFC r345312

iflib: mark isc_driver_version as constant

From Jake:
The iflib core never modifies the isc_driver_version string. Allow
drivers to safely assign pointers to constant buffers by marking this
parameter const.

(Additional comment by erj: This also adds a new sysctl_add_oid macro,
SYSCTL_ADD_CONST_STRING, for displaying const strings).

Submitted by:   Jacob Keller <jacob.e.keller@intel.com>
Reviewed by:    erj@, gallatin@, jhb@
Sponsored by:   Intel Corporation
Differential Revision:  https://reviews.freebsd.org/D19577

END