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74a0b46667
(cherry pick from commit 92bb8d5d55)
vdso_data_mapping is never modified, so mark it as const.
vdso_total_pages, vdso_data_page, vdso_text_mapping and cntvct_ok are
initialized by vdso_init(), thereafter are read only.
The fact that they are read only after init makes them candidates for
__ro_after_init declarations.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Acked-by: Nathan Lynch <nathan_lynch@mentor.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Bug: 20045882
Bug: 19198045
Change-Id: I0b2f9807d3cd66c5ef7457ac6fc180a41cbe05c6