x86/boot: Use proper array element type in memset() size calculation

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I changed open coded zeroing loops to explicit memset()s in the
following commit:

  5e9ebbd87a ("x86/boot: Micro-optimize reset_early_page_tables()")

The base for the size argument of memset was sizeof(pud_p/pmd_p), which
are pointers - but the initialized array has pud_t/pmd_t elements.

Luckily the two types had the same size, so this did not result in any
runtime misbehavior.

Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com>
Cc: Alexander Popov <alpopov@ptsecurity.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Andy Lutomirski <luto@kernel.org>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1455025494-4063-1-git-send-email-kuleshovmail@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

...

This commit is contained in:

Alexander Kuleshov 2016-02-09 19:44:54 +06:00 • committed by Ingo Molnar

parent 8c0517759a

commit a91bbe0175

1 changed files with 2 additions and 2 deletions

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arch/x86/kernel/head64.c

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