6.6-stable review patch. If anyone has any objections, please let me know.
------------------
From: peng guo <engguopeng@xxxxxxxxxxx>
[ Upstream commit 8ecef8e01a08c7e3e4ffc8f08d9f9663984f334b ]
When user send a mbox command whose opcode is CXL_MBOX_OP_CLEAR_LOG and
the in_payload is normal vendor debug log UUID according to
the CXL specification cxl_payload_from_user_allowed() will return
false unexpectedly, Sending mbox cmd operation fails and the kernel
log will print:
Clear Log: input payload not allowed.
All CXL devices that support a debug log shall support the Vendor Debug
Log to allow the log to be accessed through a common host driver, for any
device, all versions of the CXL specification define the same value with
Log Identifier of: 5e1819d9-11a9-400c-811f-d60719403d86
Refer to CXL spec r3.1 Table 8-71
Fix the definition value of DEFINE_CXL_VENDOR_DEBUG_UUID to match the
CXL specification.
Fixes: 472b1ce6e9d6 ("cxl/mem: Enable commands via CEL")
Signed-off-by: peng guo <engguopeng@xxxxxxxxxxx>
Reviewed-by: Alison Schofield <alison.schofield@xxxxxxxxx>
Link: https://patch.msgid.link/20240710023112.8063-1-engguopeng@xxxxxxxxxxx
Signed-off-by: Dave Jiang <dave.jiang@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/cxl/cxlmem.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/cxl/cxlmem.h b/drivers/cxl/cxlmem.h
index 59c7f88b915a..edb46123e3eb 100644
--- a/drivers/cxl/cxlmem.h
+++ b/drivers/cxl/cxlmem.h
@@ -538,7 +538,7 @@ enum cxl_opcode {
0x3b, 0x3f, 0x17)
#define DEFINE_CXL_VENDOR_DEBUG_UUID \
- UUID_INIT(0xe1819d9, 0x11a9, 0x400c, 0x81, 0x1f, 0xd6, 0x07, 0x19, \
+ UUID_INIT(0x5e1819d9, 0x11a9, 0x400c, 0x81, 0x1f, 0xd6, 0x07, 0x19, \
0x40, 0x3d, 0x86)
struct cxl_mbox_get_supported_logs {
--
2.43.0
