cpuid.c (1f503e7743df91eb6f63af27c310c557edfc3307) cpuid.c (92cb7612aee39642d109b8d935ad265e602c0563)
1/* ----------------------------------------------------------------------- *
2 *
3 * Copyright 2000 H. Peter Anvin - All Rights Reserved
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, Inc., 675 Mass Ave, Cambridge MA 02139,
8 * USA; either version 2 of the License, or (at your option) any later

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109 }
110
111 return tmp - buf;
112}
113
114static int cpuid_open(struct inode *inode, struct file *file)
115{
116 unsigned int cpu = iminor(file->f_path.dentry->d_inode);
1/* ----------------------------------------------------------------------- *
2 *
3 * Copyright 2000 H. Peter Anvin - All Rights Reserved
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, Inc., 675 Mass Ave, Cambridge MA 02139,
8 * USA; either version 2 of the License, or (at your option) any later

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109 }
110
111 return tmp - buf;
112}
113
114static int cpuid_open(struct inode *inode, struct file *file)
115{
116 unsigned int cpu = iminor(file->f_path.dentry->d_inode);
117 struct cpuinfo_x86 *c = &(cpu_data)[cpu];
117 struct cpuinfo_x86 *c = &cpu_data(cpu);
118
119 if (cpu >= NR_CPUS || !cpu_online(cpu))
120 return -ENXIO; /* No such CPU */
121 if (c->cpuid_level < 0)
122 return -EIO; /* CPUID not supported */
123
124 return 0;
125}

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119 if (cpu >= NR_CPUS || !cpu_online(cpu))
120 return -ENXIO; /* No such CPU */
121 if (c->cpuid_level < 0)
122 return -EIO; /* CPUID not supported */
123
124 return 0;
125}

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