summaryrefslogtreecommitdiffstats
path: root/arch/sh/kernel/traps_32.c
diff options
context:
space:
mode:
authorPaul Mundt <lethal@linux-sh.org>2008-09-04 18:53:58 +0900
committerPaul Mundt <lethal@linux-sh.org>2008-09-08 10:35:04 +0900
commitfa43972fab24a3c050e880a7831f9378c6cebc0b (patch)
tree35d51e6a0ac6556f82d843506e8317854dc3192c /arch/sh/kernel/traps_32.c
parent7d96169cb769f459dd6730b06fa3a88cb0c9297d (diff)
downloadop-kernel-dev-fa43972fab24a3c050e880a7831f9378c6cebc0b.zip
op-kernel-dev-fa43972fab24a3c050e880a7831f9378c6cebc0b.tar.gz
sh: fixup many sparse errors.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/traps_32.c')
-rw-r--r--arch/sh/kernel/traps_32.c68
1 files changed, 35 insertions, 33 deletions
diff --git a/arch/sh/kernel/traps_32.c b/arch/sh/kernel/traps_32.c
index 511a942..4901f67 100644
--- a/arch/sh/kernel/traps_32.c
+++ b/arch/sh/kernel/traps_32.c
@@ -192,6 +192,7 @@ static int handle_unaligned_ins(opcode_t instruction, struct pt_regs *regs,
int ret, index, count;
unsigned long *rm, *rn;
unsigned char *src, *dst;
+ unsigned char __user *srcu, *dstu;
index = (instruction>>8)&15; /* 0x0F00 */
rn = &regs->regs[index];
@@ -206,28 +207,28 @@ static int handle_unaligned_ins(opcode_t instruction, struct pt_regs *regs,
case 0: /* mov.[bwl] to/from memory via r0+rn */
if (instruction & 8) {
/* from memory */
- src = (unsigned char*) *rm;
- src += regs->regs[0];
- dst = (unsigned char*) rn;
- *(unsigned long*)dst = 0;
+ srcu = (unsigned char __user *)*rm;
+ srcu += regs->regs[0];
+ dst = (unsigned char *)rn;
+ *(unsigned long *)dst = 0;
#if !defined(__LITTLE_ENDIAN__)
dst += 4-count;
#endif
- if (ma->from(dst, src, count))
+ if (ma->from(dst, srcu, count))
goto fetch_fault;
sign_extend(count, dst);
} else {
/* to memory */
- src = (unsigned char*) rm;
+ src = (unsigned char *)rm;
#if !defined(__LITTLE_ENDIAN__)
src += 4-count;
#endif
- dst = (unsigned char*) *rn;
- dst += regs->regs[0];
+ dstu = (unsigned char __user *)*rn;
+ dstu += regs->regs[0];
- if (ma->to(dst, src, count))
+ if (ma->to(dstu, src, count))
goto fetch_fault;
}
ret = 0;
@@ -235,10 +236,10 @@ static int handle_unaligned_ins(opcode_t instruction, struct pt_regs *regs,
case 1: /* mov.l Rm,@(disp,Rn) */
src = (unsigned char*) rm;
- dst = (unsigned char*) *rn;
- dst += (instruction&0x000F)<<2;
+ dstu = (unsigned char __user *)*rn;
+ dstu += (instruction&0x000F)<<2;
- if (ma->to(dst, src, 4))
+ if (ma->to(dstu, src, 4))
goto fetch_fault;
ret = 0;
break;
@@ -247,28 +248,28 @@ static int handle_unaligned_ins(opcode_t instruction, struct pt_regs *regs,
if (instruction & 4)
*rn -= count;
src = (unsigned char*) rm;
- dst = (unsigned char*) *rn;
+ dstu = (unsigned char __user *)*rn;
#if !defined(__LITTLE_ENDIAN__)
src += 4-count;
#endif
- if (ma->to(dst, src, count))
+ if (ma->to(dstu, src, count))
goto fetch_fault;
ret = 0;
break;
case 5: /* mov.l @(disp,Rm),Rn */
- src = (unsigned char*) *rm;
- src += (instruction&0x000F)<<2;
- dst = (unsigned char*) rn;
- *(unsigned long*)dst = 0;
+ srcu = (unsigned char __user *)*rm;
+ srcu += (instruction & 0x000F) << 2;
+ dst = (unsigned char *)rn;
+ *(unsigned long *)dst = 0;
- if (ma->from(dst, src, 4))
+ if (ma->from(dst, srcu, 4))
goto fetch_fault;
ret = 0;
break;
case 6: /* mov.[bwl] from memory, possibly with post-increment */
- src = (unsigned char*) *rm;
+ srcu = (unsigned char __user *)*rm;
if (instruction & 4)
*rm += count;
dst = (unsigned char*) rn;
@@ -277,7 +278,7 @@ static int handle_unaligned_ins(opcode_t instruction, struct pt_regs *regs,
#if !defined(__LITTLE_ENDIAN__)
dst += 4-count;
#endif
- if (ma->from(dst, src, count))
+ if (ma->from(dst, srcu, count))
goto fetch_fault;
sign_extend(count, dst);
ret = 0;
@@ -286,28 +287,28 @@ static int handle_unaligned_ins(opcode_t instruction, struct pt_regs *regs,
case 8:
switch ((instruction&0xFF00)>>8) {
case 0x81: /* mov.w R0,@(disp,Rn) */
- src = (unsigned char*) &regs->regs[0];
+ src = (unsigned char *) &regs->regs[0];
#if !defined(__LITTLE_ENDIAN__)
src += 2;
#endif
- dst = (unsigned char*) *rm; /* called Rn in the spec */
- dst += (instruction&0x000F)<<1;
+ dstu = (unsigned char __user *)*rm; /* called Rn in the spec */
+ dstu += (instruction & 0x000F) << 1;
- if (ma->to(dst, src, 2))
+ if (ma->to(dstu, src, 2))
goto fetch_fault;
ret = 0;
break;
case 0x85: /* mov.w @(disp,Rm),R0 */
- src = (unsigned char*) *rm;
- src += (instruction&0x000F)<<1;
- dst = (unsigned char*) &regs->regs[0];
- *(unsigned long*)dst = 0;
+ srcu = (unsigned char __user *)*rm;
+ srcu += (instruction & 0x000F) << 1;
+ dst = (unsigned char *) &regs->regs[0];
+ *(unsigned long *)dst = 0;
#if !defined(__LITTLE_ENDIAN__)
dst += 2;
#endif
- if (ma->from(dst, src, 2))
+ if (ma->from(dst, srcu, 2))
goto fetch_fault;
sign_extend(2, dst);
ret = 0;
@@ -333,7 +334,8 @@ static inline int handle_delayslot(struct pt_regs *regs,
struct mem_access *ma)
{
opcode_t instruction;
- void *addr = (void *)(regs->pc + instruction_size(old_instruction));
+ void __user *addr = (void __user *)(regs->pc +
+ instruction_size(old_instruction));
if (copy_from_user(&instruction, addr, sizeof(instruction))) {
/* the instruction-fetch faulted */
@@ -559,7 +561,7 @@ asmlinkage void do_address_error(struct pt_regs *regs,
}
set_fs(USER_DS);
- if (copy_from_user(&instruction, (void *)(regs->pc),
+ if (copy_from_user(&instruction, (void __user *)(regs->pc),
sizeof(instruction))) {
/* Argh. Fault on the instruction itself.
This should never happen non-SMP
@@ -589,7 +591,7 @@ uspace_segv:
die("unaligned program counter", regs, error_code);
set_fs(KERNEL_DS);
- if (copy_from_user(&instruction, (void *)(regs->pc),
+ if (copy_from_user(&instruction, (void __user *)(regs->pc),
sizeof(instruction))) {
/* Argh. Fault on the instruction itself.
This should never happen non-SMP
OpenPOWER on IntegriCloud