i2c.h simply doesn't need sched.h
diff -urpNX dontdiff linux-2.5.47/include/linux/i2c.h linux-2.5.47-pci/include/linux/i2c.h
--- linux-2.5.47/include/linux/i2c.h 2002-10-01 03:06:20.000000000 -0400
+++ linux-2.5.47-pci/include/linux/i2c.h 2002-11-16 22:32:14.000000000 -0500
@@ -48,7 +48,6 @@ struct i2c_msg;
#endif
#include <asm/page.h> /* for 2.2.xx */
-#include <linux/sched.h>
#include <asm/semaphore.h>
#include <linux/config.h>
--
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