linux-kernel - [PATCH 5/7] EDAC/skx_common: Remove redundant upper bound check for res->imc

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Message-ID: <20250731145534.2759334-6-qiuxu.zhuo@intel.com>
Date: Thu, 31 Jul 2025 22:55:32 +0800
From: Qiuxu Zhuo <qiuxu.zhuo@...el.com>
To: Tony Luck <tony.luck@...el.com>,
	Borislav Petkov <bp@...en8.de>
Cc: Qiuxu Zhuo <qiuxu.zhuo@...el.com>,
	James Morse <james.morse@....com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Robert Richter <rric@...nel.org>,
	Lai Yi <yi1.lai@...ux.intel.com>,
	linux-edac@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 5/7] EDAC/skx_common: Remove redundant upper bound check for res->imc

The following upper bound check for the memory controller physical index
decoded by ADXL is the only place where use the macro 'NUM_IMC' is used:

  res->imc > NUM_IMC - 1

Since this check is already covered by skx_get_mc_mapping(), meaning no
memory controller logical index exists for an invalid memory controller
physical index decoded by ADXL, remove the redundant upper bound check
so that the definition for 'NUM_IMC' can be cleaned up (in another patch).

Signed-off-by: Qiuxu Zhuo <qiuxu.zhuo@...el.com>
---
 drivers/edac/skx_common.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/edac/skx_common.c b/drivers/edac/skx_common.c
index dffd75144060..44f5b5402e31 100644
--- a/drivers/edac/skx_common.c
+++ b/drivers/edac/skx_common.c
@@ -207,7 +207,7 @@ static bool skx_adxl_decode(struct decoded_addr *res, enum error_source err_src)
 		res->cs      = (int)adxl_values[component_indices[INDEX_CS]];
 	}
 
-	if (res->imc > NUM_IMC - 1 || res->imc < 0) {
+	if (res->imc < 0) {
 		skx_printk(KERN_ERR, "Bad imc %d\n", res->imc);
 		return false;
 	}
-- 
2.43.0