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27 March 2024, 02:37:15 UTC
Revision 51be1335151771075dcb19f3464ca9f331134285 authored by Kirill A. Shutemov on 22 June 2018, 22:08:40 UTC, committed by Thomas Gleixner on 23 June 2018, 12:20:37 UTC 
Revert "x86/mm: Mark __pgtable_l5_enabled __initdata"
 
This reverts commit e4e961e36f063484c48bed919013c106d178995d.

We need to use early version of pgtable_l5_enabled() in
early_identify_cpu() as this code runs before cpu_feature_enabled() is
usable.

But it leads to section mismatch:

cpu_init()
  load_mm_ldt()
    ldt_slot_va()
      LDT_BASE_ADDR
        LDT_PGD_ENTRY
	  pgtable_l5_enabled()
	    __pgtable_l5_enabled

__pgtable_l5_enabled marked as __initdata, but cpu_init() is not __init.

It's fixable: early code can be isolated into a separate translation unit,
but such change collides with other work in the area.  That's too much
hassle to save 4 bytes of memory.

Return __pgtable_l5_enabled back to be __ro_after_init.

Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Link: https://lkml.kernel.org/r/20180622220841.54135-2-kirill.shutemov@linux.intel.com
1 parent 964d978
History
Tip revision: 51be1335151771075dcb19f3464ca9f331134285 authored by Kirill A. Shutemov on 22 June 2018, 22:08:40 UTC
Revert "x86/mm: Mark __pgtable_l5_enabled __initdata"
Tip revision: 51be133
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