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authorBorislav Petkov <bp@suse.de>2015-02-10 06:00:56 -0500
committerBorislav Petkov <bp@suse.de>2015-03-02 14:32:16 -0500
commit140f74fcedbfc862178c082c50b5f54dd52c1ce4 (patch)
tree448aa8abb8f95fef2d2bd6a806eae3f39dee2f7e
parente3d8f6747663b468ccedb8af0f38f2be82874c63 (diff)
x86/microcode/intel: Sanitize microcode_pointer()
Shorten variable names and rename it to what it does. No functionality change. Signed-off-by: Borislav Petkov <bp@suse.de>
-rw-r--r--arch/x86/kernel/cpu/microcode/intel_early.c23
1 files changed, 9 insertions, 14 deletions
diff --git a/arch/x86/kernel/cpu/microcode/intel_early.c b/arch/x86/kernel/cpu/microcode/intel_early.c
index 844c75895160..7bcad1aacce3 100644
--- a/arch/x86/kernel/cpu/microcode/intel_early.c
+++ b/arch/x86/kernel/cpu/microcode/intel_early.c
@@ -66,16 +66,14 @@ load_microcode_early(struct microcode_intel **saved,
66 return UCODE_OK; 66 return UCODE_OK;
67} 67}
68 68
69static void 69static inline void
70microcode_pointer(struct microcode_intel **mc_saved, 70copy_initrd_ptrs(struct microcode_intel **mc_saved, unsigned long *initrd,
71 unsigned long *mc_saved_in_initrd, 71 unsigned long off, int num_saved)
72 unsigned long initrd_start, int mc_saved_count)
73{ 72{
74 int i; 73 int i;
75 74
76 for (i = 0; i < mc_saved_count; i++) 75 for (i = 0; i < num_saved; i++)
77 mc_saved[i] = (struct microcode_intel *) 76 mc_saved[i] = (struct microcode_intel *)(initrd[i] + off);
78 (mc_saved_in_initrd[i] + initrd_start);
79} 77}
80 78
81#ifdef CONFIG_X86_32 79#ifdef CONFIG_X86_32
@@ -99,17 +97,14 @@ microcode_phys(struct microcode_intel **mc_saved_tmp,
99#endif 97#endif
100 98
101static enum ucode_state 99static enum ucode_state
102load_microcode(struct mc_saved_data *mc_saved_data, 100load_microcode(struct mc_saved_data *mc_saved_data, unsigned long *initrd,
103 unsigned long *mc_saved_in_initrd, 101 unsigned long initrd_start, struct ucode_cpu_info *uci)
104 unsigned long initrd_start,
105 struct ucode_cpu_info *uci)
106{ 102{
107 struct microcode_intel *mc_saved_tmp[MAX_UCODE_COUNT]; 103 struct microcode_intel *mc_saved_tmp[MAX_UCODE_COUNT];
108 unsigned int count = mc_saved_data->mc_saved_count; 104 unsigned int count = mc_saved_data->mc_saved_count;
109 105
110 if (!mc_saved_data->mc_saved) { 106 if (!mc_saved_data->mc_saved) {
111 microcode_pointer(mc_saved_tmp, mc_saved_in_initrd, 107 copy_initrd_ptrs(mc_saved_tmp, initrd, initrd_start, count);
112 initrd_start, count);
113 108
114 return load_microcode_early(mc_saved_tmp, count, uci); 109 return load_microcode_early(mc_saved_tmp, count, uci);
115 } else { 110 } else {
@@ -672,7 +667,7 @@ int __init save_microcode_in_initrd_intel(void)
672 if (count == 0) 667 if (count == 0)
673 return ret; 668 return ret;
674 669
675 microcode_pointer(mc_saved, mc_saved_in_initrd, initrd_start, count); 670 copy_initrd_ptrs(mc_saved, mc_saved_in_initrd, initrd_start, count);
676 ret = save_microcode(&mc_saved_data, mc_saved, count); 671 ret = save_microcode(&mc_saved_data, mc_saved, count);
677 if (ret) 672 if (ret)
678 pr_err("Cannot save microcode patches from initrd.\n"); 673 pr_err("Cannot save microcode patches from initrd.\n");