ARM: mm: alignment: use "u32" for 32-bit instructions

Rather than using "unsigned long", use "u32" for 32-bit instructions in
the alignment fault handler.

Signed-off-by: Russell King <rmk+kernel@armlinux.org.uk>

diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c
index 6587432..788c5cf 100644 (file)
--- a/arch/arm/mm/alignment.c
+++ b/arch/arm/mm/alignment.c
@@ -324,7 +324,7 @@ union offset_union {
        __put32_unaligned_check("strbt", val, addr)
 
 static void
-do_alignment_finish_ldst(unsigned long addr, unsigned long instr, struct pt_regs *regs, union offset_union offset)
+do_alignment_finish_ldst(unsigned long addr, u32 instr, struct pt_regs *regs, union offset_union offset)
 {
        if (!LDST_U_BIT(instr))
                offset.un = -offset.un;
@@ -337,7 +337,7 @@ do_alignment_finish_ldst(unsigned long addr, unsigned long instr, struct pt_regs
 }
 
 static int
-do_alignment_ldrhstrh(unsigned long addr, unsigned long instr, struct pt_regs *regs)
+do_alignment_ldrhstrh(unsigned long addr, u32 instr, struct pt_regs *regs)
 {
        unsigned int rd = RD_BITS(instr);
 
@@ -386,8 +386,7 @@ do_alignment_ldrhstrh(unsigned long addr, unsigned long instr, struct pt_regs *r
 }
 
 static int
-do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
-                     struct pt_regs *regs)
+do_alignment_ldrdstrd(unsigned long addr, u32 instr, struct pt_regs *regs)
 {
        unsigned int rd = RD_BITS(instr);
        unsigned int rd2;
@@ -449,7 +448,7 @@ do_alignment_ldrdstrd(unsigned long addr, unsigned long instr,
 }
 
 static int
-do_alignment_ldrstr(unsigned long addr, unsigned long instr, struct pt_regs *regs)
+do_alignment_ldrstr(unsigned long addr, u32 instr, struct pt_regs *regs)
 {
        unsigned int rd = RD_BITS(instr);
 
@@ -498,7 +497,7 @@ do_alignment_ldrstr(unsigned long addr, unsigned long instr, struct pt_regs *reg
  * PU = 10             A                    B
  */
 static int
-do_alignment_ldmstm(unsigned long addr, unsigned long instr, struct pt_regs *regs)
+do_alignment_ldmstm(unsigned long addr, u32 instr, struct pt_regs *regs)
 {
        unsigned int rd, rn, correction, nr_regs, regbits;
        unsigned long eaddr, newaddr;
@@ -539,7 +538,7 @@ do_alignment_ldmstm(unsigned long addr, unsigned long instr, struct pt_regs *reg
         * processor for us.
         */
        if (addr != eaddr) {
-               pr_err("LDMSTM: PC = %08lx, instr = %08lx, "
+               pr_err("LDMSTM: PC = %08lx, instr = %08x, "
                        "addr = %08lx, eaddr = %08lx\n",
                         instruction_pointer(regs), instr, addr, eaddr);
                show_regs(regs);
@@ -716,10 +715,10 @@ thumb2arm(u16 tinstr)
  * 2. Register name Rt from ARMv7 is same as Rd from ARMv6 (Rd is Rt)
  */
 static void *
-do_alignment_t32_to_handler(unsigned long *pinstr, struct pt_regs *regs,
+do_alignment_t32_to_handler(u32 *pinstr, struct pt_regs *regs,
                            union offset_union *poffset)
 {
-       unsigned long instr = *pinstr;
+       u32 instr = *pinstr;
        u16 tinst1 = (instr >> 16) & 0xffff;
        u16 tinst2 = instr & 0xffff;
 
@@ -767,7 +766,7 @@ do_alignment_t32_to_handler(unsigned long *pinstr, struct pt_regs *regs,
        return NULL;
 }
 
-static int alignment_get_arm(struct pt_regs *regs, u32 *ip, unsigned long *inst)
+static int alignment_get_arm(struct pt_regs *regs, u32 *ip, u32 *inst)
 {
        u32 instr = 0;
        int fault;
@@ -801,9 +800,10 @@ static int
 do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
 {
        union offset_union uninitialized_var(offset);
-       unsigned long instr = 0, instrptr;
-       int (*handler)(unsigned long addr, unsigned long instr, struct pt_regs *regs);
+       unsigned long instrptr;
+       int (*handler)(unsigned long addr, u32 instr, struct pt_regs *regs);
        unsigned int type;
+       u32 instr = 0;
        u16 tinstr = 0;
        int isize = 4;
        int thumb2_32b = 0;
@@ -954,7 +954,7 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
         * Oops, we didn't handle the instruction.
         */
        pr_err("Alignment trap: not handling instruction "
-               "%0*lx at [<%08lx>]\n",
+               "%0*x at [<%08lx>]\n",
                isize << 1,
                isize == 2 ? tinstr : instr, instrptr);
        ai_skipped += 1;
@@ -964,7 +964,7 @@ do_alignment(unsigned long addr, unsigned int fsr, struct pt_regs *regs)
        ai_user += 1;
 
        if (ai_usermode & UM_WARN)
-               printk("Alignment trap: %s (%d) PC=0x%08lx Instr=0x%0*lx "
+               printk("Alignment trap: %s (%d) PC=0x%08lx Instr=0x%0*x "
                       "Address=0x%08lx FSR 0x%03x\n", current->comm,
                        task_pid_nr(current), instrptr,
                        isize << 1,