Michal Simek f663b60f52
microblaze: Fix uaccess_ok macro ...
Fix access_ok macro no to permit
case where user will try to access
the last address space which is equal
to segment address.
Example:
segment addr = 0xbfff ffff
address = 0xbfff fff0
size = 0x10
Current wrong implementation
0xbfff ffff >= (0xbfff fff0 | 0x10 | (0xbfff fff0 + 0x10))
0xbfff ffff >= (0xbfff fff0 | 0xc000 0000)
0xbfff ffff >= 0xf000 0000
return 0 which is access failed even the combination is valid.
because get_fs().seq returns the last valid address.
This patch fix this problem.
Size equals to zero is valid access.
Signed-off-by: Michal Simek <michal.simek@xilinx.com >
2013-05-09 09:04:32 +02:00
2009-09-22 10:10:06 +02:00
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2011-03-09 08:09:58 +01:00
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2009-07-06 10:26:55 +02:00
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2010-08-04 10:22:35 +02:00
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2009-07-06 10:26:55 +02:00
2009-03-27 14:25:41 +01:00
f663b60f52