[PATCH v6 12/15] x86/mce/amd: Remove redundant reset_block()

Yazen Ghannam posted 15 patches 1 day, 10 hours ago
[PATCH v6 12/15] x86/mce/amd: Remove redundant reset_block()
Posted by Yazen Ghannam 1 day, 10 hours ago
Many of the checks in reset_block() are done again in the block reset
function. So drop the redundant checks.

Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
---

Notes:
    Link:
    https://lore.kernel.org/r/20250825-wip-mca-updates-v5-17-865768a2eef8@amd.com
    
    v5->v6:
    * No change.
    
    v4->v5:
    * No change.
    
    v3->v4:
    * New in v4.

 arch/x86/kernel/cpu/mce/amd.c | 28 +++++++---------------------
 1 file changed, 7 insertions(+), 21 deletions(-)

diff --git a/arch/x86/kernel/cpu/mce/amd.c b/arch/x86/kernel/cpu/mce/amd.c
index 34268940c88a..9ca4079ff342 100644
--- a/arch/x86/kernel/cpu/mce/amd.c
+++ b/arch/x86/kernel/cpu/mce/amd.c
@@ -812,29 +812,11 @@ static void amd_deferred_error_interrupt(void)
 	machine_check_poll(MCP_TIMESTAMP, &this_cpu_ptr(&mce_amd_data)->dfr_intr_banks);
 }
 
-static void reset_block(struct threshold_block *block)
-{
-	struct thresh_restart tr;
-	u32 low = 0, high = 0;
-
-	if (!block)
-		return;
-
-	if (rdmsr_safe(block->address, &low, &high))
-		return;
-
-	if (!(high & MASK_OVERFLOW_HI))
-		return;
-
-	memset(&tr, 0, sizeof(tr));
-	tr.b = block;
-	threshold_restart_block(&tr);
-}
-
 static void amd_reset_thr_limit(unsigned int bank)
 {
 	struct threshold_bank **bp = this_cpu_read(threshold_banks);
 	struct threshold_block *block, *tmp;
+	struct thresh_restart tr;
 
 	/*
 	 * Validate that the threshold bank has been initialized already. The
@@ -844,8 +826,12 @@ static void amd_reset_thr_limit(unsigned int bank)
 	if (!bp || !bp[bank])
 		return;
 
-	list_for_each_entry_safe(block, tmp, &bp[bank]->miscj, miscj)
-		reset_block(block);
+	memset(&tr, 0, sizeof(tr));
+
+	list_for_each_entry_safe(block, tmp, &bp[bank]->miscj, miscj) {
+		tr.b = block;
+		threshold_restart_block(&tr);
+	}
 }
 
 /*

-- 
2.51.0