[PATCH 3/5] x86/microcode: Kill refresh_fw

From: Borislav Petkov
Date: Wed Oct 19 2022 - 13:54:54 EST


From: Borislav Petkov <bp@xxxxxxx>

request_microcode_fw() can always request firmware now so drop this
superfluous argument.

Signed-off-by: Borislav Petkov <bp@xxxxxxx>
---
arch/x86/include/asm/microcode.h | 3 +--
arch/x86/kernel/cpu/microcode/amd.c | 5 ++---
arch/x86/kernel/cpu/microcode/core.c | 4 ++--
arch/x86/kernel/cpu/microcode/intel.c | 3 +--
4 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/arch/x86/include/asm/microcode.h b/arch/x86/include/asm/microcode.h
index 74ecc2bd6cd0..d4c36fbd1d39 100644
--- a/arch/x86/include/asm/microcode.h
+++ b/arch/x86/include/asm/microcode.h
@@ -33,8 +33,7 @@ enum ucode_state {
};

struct microcode_ops {
- enum ucode_state (*request_microcode_fw) (int cpu, struct device *,
- bool refresh_fw);
+ enum ucode_state (*request_microcode_fw) (int cpu, struct device *);

void (*microcode_fini_cpu) (int cpu);

diff --git a/arch/x86/kernel/cpu/microcode/amd.c b/arch/x86/kernel/cpu/microcode/amd.c
index e7410e98fc1f..b103d5e5f447 100644
--- a/arch/x86/kernel/cpu/microcode/amd.c
+++ b/arch/x86/kernel/cpu/microcode/amd.c
@@ -891,8 +891,7 @@ load_microcode_amd(bool save, u8 family, const u8 *data, size_t size)
*
* These might be larger than 2K.
*/
-static enum ucode_state request_microcode_amd(int cpu, struct device *device,
- bool refresh_fw)
+static enum ucode_state request_microcode_amd(int cpu, struct device *device)
{
char fw_name[36] = "amd-ucode/microcode_amd.bin";
struct cpuinfo_x86 *c = &cpu_data(cpu);
@@ -901,7 +900,7 @@ static enum ucode_state request_microcode_amd(int cpu, struct device *device,
const struct firmware *fw;

/* reload ucode container only on the boot cpu */
- if (!refresh_fw || !bsp)
+ if (!bsp)
return UCODE_OK;

if (c->x86 >= 0x15)
diff --git a/arch/x86/kernel/cpu/microcode/core.c b/arch/x86/kernel/cpu/microcode/core.c
index 0aa6609e748c..8401b7235a68 100644
--- a/arch/x86/kernel/cpu/microcode/core.c
+++ b/arch/x86/kernel/cpu/microcode/core.c
@@ -477,7 +477,7 @@ static ssize_t reload_store(struct device *dev,
if (ret)
goto put;

- tmp_ret = microcode_ops->request_microcode_fw(bsp, &microcode_pdev->dev, true);
+ tmp_ret = microcode_ops->request_microcode_fw(bsp, &microcode_pdev->dev);
if (tmp_ret != UCODE_NEW)
goto put;

@@ -657,7 +657,7 @@ static int __init microcode_init(void)
* Frankly, I have no clue how that can happen but hey, loading here is cheap so
* why not.
*/
- microcode_ops->request_microcode_fw(boot_cpu_data.cpu_index, &microcode_pdev->dev, true);
+ microcode_ops->request_microcode_fw(boot_cpu_data.cpu_index, &microcode_pdev->dev);

/* Do per-CPU setup */
cpus_read_lock();
diff --git a/arch/x86/kernel/cpu/microcode/intel.c b/arch/x86/kernel/cpu/microcode/intel.c
index 1fcbd671f1df..8c35c70029bf 100644
--- a/arch/x86/kernel/cpu/microcode/intel.c
+++ b/arch/x86/kernel/cpu/microcode/intel.c
@@ -885,8 +885,7 @@ static bool is_blacklisted(unsigned int cpu)
return false;
}

-static enum ucode_state request_microcode_fw(int cpu, struct device *device,
- bool refresh_fw)
+static enum ucode_state request_microcode_fw(int cpu, struct device *device)
{
struct cpuinfo_x86 *c = &cpu_data(cpu);
const struct firmware *firmware;
--
2.35.1