ARM: OMAP2+: Fix save_secure_ram_context for rodata

We don't want to write to .text and we can move save_secure_ram_context
into .data as it all gets copied into SRAM anyways.

Cc: Kees Cook <keescook@chromium.org>
Cc: Laura Abbott <labbott@redhat.com>
Cc: Nishanth Menon <nm@ti.com>
Cc: Richard Woodruff <r-woodruff2@ti.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: Tero Kristo <t-kristo@ti.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: stable@vger.kernel.org # v4.0+
Fixes: 1e6b48116a95 ("ARM: mm: allow non-text sections to be
non-executable")
Signed-off-by: Tony Lindgren <tony@atomide.com>

diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S
index 5659d96..8e2a7ac 100644 (file)
--- a/arch/arm/mach-omap2/sleep34xx.S
+++ b/arch/arm/mach-omap2/sleep34xx.S
@@ -92,8 +92,12 @@ ENTRY(enable_omap3630_toggle_l2_on_restore)
        ldmfd   sp!, {pc}       @ restore regs and return
 ENDPROC(enable_omap3630_toggle_l2_on_restore)
 
-       .text
-/* Function to call rom code to save secure ram context */
+/*
+ * Function to call rom code to save secure ram context. This gets
+ * relocated to SRAM, so it can be all in .data section. Otherwise
+ * we need to initialize api_params separately.
+ */
+       .data
        .align  3
 ENTRY(save_secure_ram_context)
        stmfd   sp!, {r4 - r11, lr}     @ save registers on stack
@@ -127,6 +131,8 @@ ENDPROC(save_secure_ram_context)
 ENTRY(save_secure_ram_context_sz)
        .word   . - save_secure_ram_context
 
+       .text
+
 /*
  * ======================
  * == Idle entry point ==