MIPS: mm: Remove redundant drop_mmu_context() cpu argument

The drop_mmu_context() function accepts a cpu argument, but it
implicitly expects that this is always equal to smp_processor_id() by
allocating & configuring an ASID on the local CPU when the mm is active
on the CPU indicated by the cpu argument.

All callers do provide the value of smp_processor_id() to the cpu
argument.

Remove the redundant argument and have drop_mmu_context() call
smp_processor_id() itself, making it clearer that the cpu variable
always represents the local CPU.

Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: linux-mips@vger.kernel.org

arch/mips/mm/c-r4k.c

@@ -700,7 +700,7 @@ static inline void local_r4k_flush_cache_page(void *args)
 			int cpu = smp_processor_id();
 
 			if (cpu_context(cpu, mm) != 0)
-				drop_mmu_context(mm, cpu);
+				drop_mmu_context(mm);
 		} else
 			vaddr ? r4k_blast_icache_page(addr) :
 				r4k_blast_icache_user_page(addr);