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[61.220.246.151]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2a7b03945c7sm38423085ad.102.2026.01.22.00.40.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 22 Jan 2026 00:40:15 -0800 (PST) From: Potin Lai Date: Thu, 22 Jan 2026 16:37:56 +0800 Subject: [PATCH] soc: aspeed: soninfo: mask table entries for accurate SoC ID matching Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20260122-soc_aspeed_name_fix-v1-1-33a847f2581c@gmail.com> X-B4-Tracking: v=1; b=H4sIAOThcWkC/x2MQQqAIBAAvyJ7TsglIvpKhCy61R4ycSEC6e9Jx xmYqaBchBVmU6HwLSpXauA6A+GgtLOV2Biwx7F3iFav4Ekzc/SJTvabPJbGIWxEGKchQCtz4ab /67K+7wevLlqeZQAAAA== To: Joel Stanley , Andrew Jeffery Cc: linux-arm-kernel@lists.infradead.org, linux-aspeed@lists.ozlabs.org, linux-kernel@vger.kernel.org, Patrick Williams , Cosmo Chou , Potin Lai , Potin Lai X-Mailer: b4 0.12.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1769071213; l=1296; i=potin.lai.pt@gmail.com; s=20240724; h=from:subject:message-id; bh=NcA+4V/eKoD7laEnrtITGzEvL6h6C7wMkK//E+tf3IU=; b=rLkSU4ZR7LLrHUbxt3uEiBVvpobZHIDelmOZTOc6BulV862CLv2zf2tyIwEKQpsl0CCu7vUkh pdED0LZMfZGCPrqpPmWs9sJdqSz+cplTG8ilFHqfaN5x1F2PlHwB6nJ X-Developer-Key: i=potin.lai.pt@gmail.com; a=ed25519; pk=6Z4H4V4fJwLteH/WzIXSsx6TkuY5FOcBBP+4OflJ5gM= The siliconid_to_name function currently masks the input silicon ID with 0xff00ffff, but compares it against unmasked table entries. This causes matching to fail if the table entries contain non-zero values in the bits covered by the mask (bits 16-23). Update the logic to apply the 0xff00ffff mask to the table entries during comparison. This ensures that only the relevant model and revision bits are considered, providing a consistent match across different manufacturing batches. Signed-off-by: Potin Lai --- drivers/soc/aspeed/aspeed-socinfo.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/soc/aspeed/aspeed-socinfo.c b/drivers/soc/aspeed/aspee= d-socinfo.c index 67e9ac3d08ec..a90b100f4d10 100644 --- a/drivers/soc/aspeed/aspeed-socinfo.c +++ b/drivers/soc/aspeed/aspeed-socinfo.c @@ -39,7 +39,7 @@ static const char *siliconid_to_name(u32 siliconid) unsigned int i; =20 for (i =3D 0 ; i < ARRAY_SIZE(rev_table) ; ++i) { - if (rev_table[i].id =3D=3D id) + if ((rev_table[i].id & 0xff00ffff) =3D=3D id) return rev_table[i].name; } =20 --- base-commit: 24d479d26b25bce5faea3ddd9fa8f3a6c3129ea7 change-id: 20260122-soc_aspeed_name_fix-a64cfaa2d84c Best regards, --=20 Potin Lai