tree 39b0581719832b892a925706be0af3cbf6768137
parent 9bbe77669c6e2b71826449d854f5aa0e2cee7767
author Michael Brown <mcb30@ipxe.org> 1711549727 +0000
committer Michael Brown <mcb30@ipxe.org> 1711549727 +0000

[build] Fix build failures with random versions of gcc

For unknown reasons, miscellaneous versions of gcc seem to struggle
with the static assertions used to ensure the correct layout of the
GCM structures.

Adjust the assertions to use offsetof() rather than direct pointer
comparison, on the basis that offsetof() must be a compile-time
constant value.

Signed-off-by: Michael Brown <mcb30@ipxe.org>