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[ARM] 5329/1: Feroceon: fix feroceon_l2_inv_range

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Same fix as commit c7cf72dcad: when 'start' and 'end' are less than a
cacheline apart and 'start' is unaligned we are done after cleaning and
invalidating the first cacheline.

Cc: <stable@kernel.org>
Signed-off-by: Nicolas Pitre <nico@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Nicolas Pitre 2008-11-08 21:15:53 +01:00 committed by Russell King
parent 4bab0ea1d4
commit 72bc2b1ad6
1 changed files with 2 additions and 2 deletions
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4
arch/arm/mm/cache-feroceon-l2.c
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@ -150,7 +150,7 @@ static void feroceon_l2_inv_range(unsigned long start, unsigned long end)
/*
* Clean and invalidate partial last cache line.
*/
if (end & (CACHE_LINE_SIZE - 1)) {
if (start < end && end & (CACHE_LINE_SIZE - 1)) {
l2_clean_inv_pa(end & ~(CACHE_LINE_SIZE - 1));
end &= ~(CACHE_LINE_SIZE - 1);
}
@ -158,7 +158,7 @@ static void feroceon_l2_inv_range(unsigned long start, unsigned long end)
/*
* Invalidate all full cache lines between 'start' and 'end'.
*/
while (start != end) {
while (start < end) {
unsigned long range_end = calc_range_end(start, end);
l2_inv_pa_range(start, range_end - CACHE_LINE_SIZE);
start = range_end;