Patch "drm/amdgpu: Don't offset by 2 in FRU EEPROM" has been added to the 5.17-stable tree

[Sasha Levin <sashal@xxxxxxxxxx>]

This is a note to let you know that I've just added the patch titled

    drm/amdgpu: Don't offset by 2 in FRU EEPROM

to the 5.17-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     drm-amdgpu-don-t-offset-by-2-in-fru-eeprom.patch
and it can be found in the queue-5.17 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.



commit 827cf2a9ac07bead71c0ab71c2580032aa791622
Author: Luben Tuikov <luben.tuikov@xxxxxxx>
Date:   Thu Feb 3 19:05:20 2022 -0500

    drm/amdgpu: Don't offset by 2 in FRU EEPROM
    
    [ Upstream commit 3f3a24a0a3a58677d2b4f3c442d7a1be05afb123 ]
    
    Read buffers no longer expose the I2C address, and so we don't need to
    offset by two when we get the read data.
    
    Cc: Alex Deucher <Alexander.Deucher@xxxxxxx>
    Cc: Kent Russell <kent.russell@xxxxxxx>
    Cc: Andrey Grodzovsky <Andrey.Grodzovsky@xxxxxxx>
    Fixes: bd607166af7fe3 ("drm/amdgpu: Enable reading FRU chip via I2C v3")
    Signed-off-by: Luben Tuikov <luben.tuikov@xxxxxxx>
    Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@xxxxxxx>
    Reviewed-by: Kent Russell <kent.russell@xxxxxxx>
    Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
    Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
index 2a786e788627..978c46395ced 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fru_eeprom.c
@@ -91,17 +91,13 @@ static int amdgpu_fru_read_eeprom(struct amdgpu_device *adev, uint32_t addrptr,
 
 int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
 {
-	unsigned char buff[AMDGPU_PRODUCT_NAME_LEN+2];
+	unsigned char buff[AMDGPU_PRODUCT_NAME_LEN];
 	u32 addrptr;
 	int size, len;
-	int offset = 2;
 
 	if (!is_fru_eeprom_supported(adev))
 		return 0;
 
-	if (adev->asic_type == CHIP_ALDEBARAN)
-		offset = 0;
-
 	/* If algo exists, it means that the i2c_adapter's initialized */
 	if (!adev->pm.smu_i2c.algo) {
 		DRM_WARN("Cannot access FRU, EEPROM accessor not initialized");
@@ -143,8 +139,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
 				AMDGPU_PRODUCT_NAME_LEN);
 		len = AMDGPU_PRODUCT_NAME_LEN - 1;
 	}
-	/* Start at 2 due to buff using fields 0 and 1 for the address */
-	memcpy(adev->product_name, &buff[offset], len);
+	memcpy(adev->product_name, buff, len);
 	adev->product_name[len] = '\0';
 
 	addrptr += size + 1;
@@ -162,7 +157,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
 		DRM_WARN("FRU Product Number is larger than 16 characters. This is likely a mistake");
 		len = sizeof(adev->product_number) - 1;
 	}
-	memcpy(adev->product_number, &buff[offset], len);
+	memcpy(adev->product_number, buff, len);
 	adev->product_number[len] = '\0';
 
 	addrptr += size + 1;
@@ -189,7 +184,7 @@ int amdgpu_fru_get_product_info(struct amdgpu_device *adev)
 		DRM_WARN("FRU Serial Number is larger than 16 characters. This is likely a mistake");
 		len = sizeof(adev->serial) - 1;
 	}
-	memcpy(adev->serial, &buff[offset], len);
+	memcpy(adev->serial, buff, len);
 	adev->serial[len] = '\0';
 
 	return 0;