From b023a9396062df289399c6c4eab1f78c73199751 Mon Sep 17 00:00:00 2001 From: Paul Burton Date: Mon, 6 Aug 2018 18:18:52 -0700 Subject: [PATCH] MIPS: Avoid using array as parameter to write_c0_kpgd() Passing an array (swapper_pg_dir) as the argument to write_c0_kpgd() in setup_pw() will become problematic if we modify __write_64bit_c0_split() to cast its val argument to unsigned long long, because for 32-bit kernel builds the size of a pointer will differ from the size of an unsigned long long. This would fall foul of gcc's pointer-to-int-cast diagnostic. Cast the value to a long, which should be the same width as the pointer that we ultimately want & will be sign extended if required to the unsigned long long that __write_64bit_c0_split() ultimately needs. Signed-off-by: Paul Burton --- arch/mips/mm/tlbex.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 79b9f2ad3ff5..49312a14cd17 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -1509,7 +1509,7 @@ static void setup_pw(void) #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT write_c0_pwctl(1 << 6 | psn); #endif - write_c0_kpgd(swapper_pg_dir); + write_c0_kpgd((long)swapper_pg_dir); kscratch_used_mask |= (1 << 7); /* KScratch6 is used for KPGD */ }