summaryrefslogtreecommitdiffstats
path: root/arch
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 08:51:55 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2011-05-23 08:51:55 -0700
commitd7ef64a9f9987b29e3d911369a9d40122d5be2dd (patch)
treec674cbed424876b95ddb23ec99344574be0dab39 /arch
parentff2a9941ca27ab18169d17b3803aca68b154951c (diff)
parent6ec5ff4bc3a90b7716eadc4c8a686e904131f03a (diff)
Merge branch 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86: Eliminate various 'set but not used' warnings x86, SMEP: Fix section mismatch warnings x86, amd: Use _safe() msr access for GartTlbWlk disable code
Diffstat (limited to 'arch')
-rw-r--r--arch/x86/kernel/amd_iommu.c5
-rw-r--r--arch/x86/kernel/cpu/amd.c9
-rw-r--r--arch/x86/kernel/test_nx.c2
-rw-r--r--arch/x86/mm/pf_in.c14
4 files changed, 11 insertions, 19 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c
index 873e7e1ead7..cd8cbeb5fa3 100644
--- a/arch/x86/kernel/amd_iommu.c
+++ b/arch/x86/kernel/amd_iommu.c
@@ -1538,13 +1538,11 @@ static void do_detach(struct device *dev)
{
struct iommu_dev_data *dev_data;
struct amd_iommu *iommu;
- struct pci_dev *pdev;
u16 devid;
devid = get_device_id(dev);
iommu = amd_iommu_rlookup_table[devid];
dev_data = get_dev_data(dev);
- pdev = to_pci_dev(dev);
/* decrease reference counters */
dev_data->domain->dev_iommu[iommu->index] -= 1;
@@ -1703,10 +1701,9 @@ static struct protection_domain *domain_for_device(struct device *dev)
struct protection_domain *dom;
struct iommu_dev_data *dev_data, *alias_data;
unsigned long flags;
- u16 devid, alias;
+ u16 devid;
devid = get_device_id(dev);
- alias = amd_iommu_alias_table[devid];
dev_data = get_dev_data(dev);
alias_data = get_dev_data(dev_data->alias);
if (!alias_data)
diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c
index 6f9d1f6063e..8f5cabb3c5b 100644
--- a/arch/x86/kernel/cpu/amd.c
+++ b/arch/x86/kernel/cpu/amd.c
@@ -629,10 +629,13 @@ static void __cpuinit init_amd(struct cpuinfo_x86 *c)
* Fixes: https://bugzilla.kernel.org/show_bug.cgi?id=33012
*/
u64 mask;
+ int err;
- rdmsrl(MSR_AMD64_MCx_MASK(4), mask);
- mask |= (1 << 10);
- wrmsrl(MSR_AMD64_MCx_MASK(4), mask);
+ err = rdmsrl_safe(MSR_AMD64_MCx_MASK(4), &mask);
+ if (err == 0) {
+ mask |= (1 << 10);
+ checking_wrmsrl(MSR_AMD64_MCx_MASK(4), mask);
+ }
}
}
diff --git a/arch/x86/kernel/test_nx.c b/arch/x86/kernel/test_nx.c
index 787a5e499dd..3f92ce07e52 100644
--- a/arch/x86/kernel/test_nx.c
+++ b/arch/x86/kernel/test_nx.c
@@ -161,7 +161,7 @@ static int test_NX(void)
}
#endif
- return 0;
+ return ret;
}
static void test_exit(void)
diff --git a/arch/x86/mm/pf_in.c b/arch/x86/mm/pf_in.c
index 38e6d174c49..9f0614daea8 100644
--- a/arch/x86/mm/pf_in.c
+++ b/arch/x86/mm/pf_in.c
@@ -414,22 +414,17 @@ unsigned long get_ins_reg_val(unsigned long ins_addr, struct pt_regs *regs)
unsigned char *p;
struct prefix_bits prf;
int i;
- unsigned long rv;
p = (unsigned char *)ins_addr;
p += skip_prefix(p, &prf);
p += get_opcode(p, &opcode);
for (i = 0; i < ARRAY_SIZE(reg_rop); i++)
- if (reg_rop[i] == opcode) {
- rv = REG_READ;
+ if (reg_rop[i] == opcode)
goto do_work;
- }
for (i = 0; i < ARRAY_SIZE(reg_wop); i++)
- if (reg_wop[i] == opcode) {
- rv = REG_WRITE;
+ if (reg_wop[i] == opcode)
goto do_work;
- }
printk(KERN_ERR "mmiotrace: Not a register instruction, opcode "
"0x%02x\n", opcode);
@@ -474,16 +469,13 @@ unsigned long get_ins_imm_val(unsigned long ins_addr)
unsigned char *p;
struct prefix_bits prf;
int i;
- unsigned long rv;
p = (unsigned char *)ins_addr;
p += skip_prefix(p, &prf);
p += get_opcode(p, &opcode);
for (i = 0; i < ARRAY_SIZE(imm_wop); i++)
- if (imm_wop[i] == opcode) {
- rv = IMM_WRITE;
+ if (imm_wop[i] == opcode)
goto do_work;
- }
printk(KERN_ERR "mmiotrace: Not an immediate instruction, opcode "
"0x%02x\n", opcode);