From 72bc2b1ad62f4d2f0a51b35829093d41f55accce Mon Sep 17 00:00:00 2001 From: Nicolas Pitre Date: Sat, 8 Nov 2008 21:15:53 +0100 Subject: [PATCH] [ARM] 5329/1: Feroceon: fix feroceon_l2_inv_range Same fix as commit c7cf72dcadb: 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: Signed-off-by: Nicolas Pitre Signed-off-by: Russell King --- arch/arm/mm/cache-feroceon-l2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/arm/mm/cache-feroceon-l2.c b/arch/arm/mm/cache-feroceon-l2.c index 13cdae8b0d4..80cd207cbae 100644 --- a/arch/arm/mm/cache-feroceon-l2.c +++ b/arch/arm/mm/cache-feroceon-l2.c @@ -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; -- 2.41.1