linux-kernel - [PATCH 04/16] x86/microcode/AMD: Clean up find_equiv

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Message-Id: <20170120202955.4091-5-bp@alien8.de>
Date:   Fri, 20 Jan 2017 21:29:43 +0100
From:   Borislav Petkov <bp@...en8.de>
To:     X86 ML <x86@...nel.org>
Cc:     LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 04/16] x86/microcode/AMD: Clean up find_equiv_id()

From: Borislav Petkov <bp@...e.de>

No need to have it marked "inline" - let gcc decide. Also, shorten the
argument name and simplify while-test.

While at it, make it into a proper for-loop and simplify it even more,
as tglx suggests.

No functionality change.

Signed-off-by: Borislav Petkov <bp@...e.de>
---
 arch/x86/kernel/cpu/microcode/amd.c | 17 +++++------------
 1 file changed, 5 insertions(+), 12 deletions(-)

diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index 6a31e2691f3a..5c1509a38048 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -97,20 +97,13 @@ static size_t compute_container_size(u8 *data, u32 total_size)
 	return size;
 }
 
-static inline u16 find_equiv_id(struct equiv_cpu_entry *equiv_cpu_table,
-				unsigned int sig)
+static u16 find_equiv_id(struct equiv_cpu_entry *equiv_table, u32 sig)
 {
-	int i = 0;
-
-	if (!equiv_cpu_table)
-		return 0;
-
-	while (equiv_cpu_table[i].installed_cpu != 0) {
-		if (sig == equiv_cpu_table[i].installed_cpu)
-			return equiv_cpu_table[i].equiv_cpu;
-
-		i++;
+	for (; equiv_table && equiv_table->installed_cpu; equiv_table++) {
+		if (sig == equiv_table->installed_cpu)
+			return equiv_table->equiv_cpu;
 	}
+
 	return 0;
 }
 
-- 
2.11.0