We know what the end looks like without examining .tail: it's NULL. It's
always NULL.
---
src/mesa/drivers/dri/i965/brw_cfg.h | 5 ++---
1 file changed, 2 insertions(+), 3 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_cfg.h
b/src/mesa/drivers/dri/i965/brw_cfg.h
index 5b770aa..1c90eab 100644
--- a/src/mesa/drivers/dri/i965/brw_cfg.h
+++ b/src/mesa/drivers/dri/i965/brw_cfg.h
@@ -334,9 +334,8 @@ struct cfg_t {
#define foreach_inst_in_block_safe(__type, __inst, __block) \
for (__type *__inst = (__type *)__block->instructions.head, \
- *__next = (__type *)__inst->next, \
- *__end = (__type *)__block->instructions.tail; \
- __next != __end; \
+ *__next = (__type *)__inst->next; \
+ __next != NULL; \
__inst = __next, \
__next = (__type *)__next->next)
--
2.7.3
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