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Subject[PATCH 03/16] x86/microcode/AMD: Move verify_patch_size() up in the file
Date
From: Borislav Petkov <bp@suse.de>

... to enable later improvements.

No functional changes.

Signed-off-by: Borislav Petkov <bp@suse.de>
---
arch/x86/kernel/cpu/microcode/amd.c | 82 ++++++++++++++---------------
1 file changed, 41 insertions(+), 41 deletions(-)

diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index 36aeb01b3ae8..f8d60cb9bb9a 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -174,6 +174,47 @@ static bool verify_patch_section(const u8 *buf, size_t buf_size, bool early)
return true;
}

+/*
+ * Check whether the passed remaining file @size is large enough to contain a
+ * patch of the indicated @patch_size (and also whether this size does not
+ * exceed the per-family maximum).
+ */
+static unsigned int verify_patch_size(u8 family, u32 patch_size, unsigned int size)
+{
+ u32 max_size;
+
+#define F1XH_MPB_MAX_SIZE 2048
+#define F14H_MPB_MAX_SIZE 1824
+#define F15H_MPB_MAX_SIZE 4096
+#define F16H_MPB_MAX_SIZE 3458
+#define F17H_MPB_MAX_SIZE 3200
+
+ switch (family) {
+ case 0x14:
+ max_size = F14H_MPB_MAX_SIZE;
+ break;
+ case 0x15:
+ max_size = F15H_MPB_MAX_SIZE;
+ break;
+ case 0x16:
+ max_size = F16H_MPB_MAX_SIZE;
+ break;
+ case 0x17:
+ max_size = F17H_MPB_MAX_SIZE;
+ break;
+ default:
+ max_size = F1XH_MPB_MAX_SIZE;
+ break;
+ }
+
+ if (patch_size > min_t(u32, size, max_size)) {
+ pr_err("patch size mismatch\n");
+ return 0;
+ }
+
+ return patch_size;
+}
+
/*
* This scans the ucode blob for the proper container as we can have multiple
* containers glued together. Returns the equivalence ID from the equivalence
@@ -562,47 +603,6 @@ static int collect_cpu_info_amd(int cpu, struct cpu_signature *csig)
return 0;
}

-/*
- * Check whether the passed remaining file @size is large enough to contain a
- * patch of the indicated @patch_size (and also whether this size does not
- * exceed the per-family maximum).
- */
-static unsigned int verify_patch_size(u8 family, u32 patch_size, unsigned int size)
-{
- u32 max_size;
-
-#define F1XH_MPB_MAX_SIZE 2048
-#define F14H_MPB_MAX_SIZE 1824
-#define F15H_MPB_MAX_SIZE 4096
-#define F16H_MPB_MAX_SIZE 3458
-#define F17H_MPB_MAX_SIZE 3200
-
- switch (family) {
- case 0x14:
- max_size = F14H_MPB_MAX_SIZE;
- break;
- case 0x15:
- max_size = F15H_MPB_MAX_SIZE;
- break;
- case 0x16:
- max_size = F16H_MPB_MAX_SIZE;
- break;
- case 0x17:
- max_size = F17H_MPB_MAX_SIZE;
- break;
- default:
- max_size = F1XH_MPB_MAX_SIZE;
- break;
- }
-
- if (patch_size > min_t(u32, size, max_size)) {
- pr_err("patch size mismatch\n");
- return 0;
- }
-
- return patch_size;
-}
-
static enum ucode_state apply_microcode_amd(int cpu)
{
struct cpuinfo_x86 *c = &cpu_data(cpu);
--
2.19.1
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