[IA64] bte_copy of BTE_MAX_XFER trips BUG_ON.
commit39d481cba27809598e755e184bc0d8ae1d22423e
authorRobin Holt <holt@sgi.com>
Wed, 4 Feb 2009 00:40:59 +0000 (3 18:40 -0600)
committerTony Luck <aegl@agluck-desktop.(none)>
Thu, 19 Feb 2009 19:29:31 +0000 (19 11:29 -0800)
tree15087a039ccdb05749e099e1a1a7ae39e3887a55
parent334f85b647bc46ff4d27ace55aa65f44d6a2f4db
[IA64] bte_copy of BTE_MAX_XFER trips BUG_ON.

BTE_MAX_XFER is wrong.  It is one greater than the number of cache
lines the BTE is actually able to transfer.  If you request a transfer
of exactly BTE_MAX_XFER size, you trip a very cryptic BUG_ON() which
should certainly be made more clear.

This patch fixes that constant and also cleans up the BUG_ON()s in
arch/ia64/sn/kernel/bte.c to test one condition per line.

Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Tony Luck <aegl@agluck-desktop.(none)>
arch/ia64/include/asm/sn/bte.h
arch/ia64/sn/kernel/bte.c