x86, cpuid: Remove the bkl from cpuid_open()
Most of the variables are local to the function. It IS possible that for struct cpuinfo_x86 *c c could point to the same area. However, this is used read only. Signed-off-by: John Kacur <jkacur@redhat.com> LKML-Reference: <alpine.LFD.2.00.0910072016190.15183@localhost.localdomain> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
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@ -118,8 +118,6 @@ static int cpuid_open(struct inode *inode, struct file *file)
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struct cpuinfo_x86 *c;
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int ret = 0;
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lock_kernel();
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cpu = iminor(file->f_path.dentry->d_inode);
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if (cpu >= nr_cpu_ids || !cpu_online(cpu)) {
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ret = -ENXIO; /* No such CPU */
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@ -129,7 +127,6 @@ static int cpuid_open(struct inode *inode, struct file *file)
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if (c->cpuid_level < 0)
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ret = -EIO; /* CPUID not supported */
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out:
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unlock_kernel();
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return ret;
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}
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