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parisc: Drop PMD_SHIFT from calculation in pgtable.h 

commit fe94cb1a61 upstream.

PMD_SHIFT isn't defined if CONFIG_PGTABLE_LEVELS == 3, and as
such the kernel test robot found this warning:

 In file included from include/linux/pgtable.h:6,
                  from arch/parisc/kernel/head.S:23:
 arch/parisc/include/asm/pgtable.h:169:32: warning: "PMD_SHIFT" is not defined, evaluates to 0 [-Wundef]
     169 | #if (KERNEL_INITIAL_ORDER) >= (PMD_SHIFT)

Avoid the warning by using PLD_SHIFT and BITS_PER_PTE.

Signed-off-by: Helge Deller <deller@gmx.de>
Reported-by: kernel test robot <lkp@intel.com>
Cc: <stable@vger.kernel.org> # 6.0+
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Helge Deller 2022-12-14 22:17:57 +01:00 committed by Greg Kroah-Hartman
parent 790aba4492
commit 4def68cc15
1 changed files with 2 additions and 2 deletions
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4
arch/parisc/include/asm/pgtable.h
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@ -166,8 +166,8 @@ extern void __update_cache(pte_t pte);
/* This calculates the number of initial pages we need for the initial
* page tables */
#if (KERNEL_INITIAL_ORDER) >= (PMD_SHIFT)
# define PT_INITIAL (1 << (KERNEL_INITIAL_ORDER - PMD_SHIFT))
#if (KERNEL_INITIAL_ORDER) >= (PLD_SHIFT + BITS_PER_PTE)
# define PT_INITIAL (1 << (KERNEL_INITIAL_ORDER - PLD_SHIFT - BITS_PER_PTE))
#else
# define PT_INITIAL (1) /* all initial PTEs fit into one page */
#endif