diff options
| author | Randy Dunlap <randy.dunlap@oracle.com> | 2008-08-21 13:43:51 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-08-22 06:55:21 +0200 |
| commit | 5b792d320f28ff83dd4c13f984807e26235f7703 (patch) | |
| tree | 51681747d4c731f1ca1b5ba7f6c8b763e0edb41e /arch/x86/kernel/microcode_amd.c | |
| parent | d45de40934897c6ee5b05141f7895bbb28512395 (diff) | |
x86, microcode_amd: fix shift warning
microcode_amd.c uses ">> 32" on a 32-bit value, so gcc warns about that.
The code could use something like this *untested* patch.
linux-next-20080821/arch/x86/kernel/microcode_amd.c:229: warning: right shift count >= width of type
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel/microcode_amd.c')
| -rw-r--r-- | arch/x86/kernel/microcode_amd.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/x86/kernel/microcode_amd.c b/arch/x86/kernel/microcode_amd.c index 4006e5e3adf..d606a05545c 100644 --- a/arch/x86/kernel/microcode_amd.c +++ b/arch/x86/kernel/microcode_amd.c @@ -206,6 +206,7 @@ static void apply_microcode_amd(int cpu) unsigned int rev; int cpu_num = raw_smp_processor_id(); struct ucode_cpu_info *uci = ucode_cpu_info + cpu_num; + unsigned long addr; /* We should bind the task to the CPU */ BUG_ON(cpu_num != cpu); @@ -215,10 +216,9 @@ static void apply_microcode_amd(int cpu) spin_lock_irqsave(µcode_update_lock, flags); - edx = (unsigned int)(((unsigned long) - &(uci->mc.mc_amd->hdr.data_code)) >> 32); - eax = (unsigned int)(((unsigned long) - &(uci->mc.mc_amd->hdr.data_code)) & 0xffffffffL); + addr = (unsigned long)&uci->mc.mc_amd->hdr.data_code; + edx = (unsigned int)(((unsigned long)upper_32_bits(addr))); + eax = (unsigned int)(((unsigned long)lower_32_bits(addr))); asm volatile("movl %0, %%ecx; wrmsr" : : "i" (0xc0010020), "a" (eax), "d" (edx) : "ecx"); |