Star Zeng 62016c1e89 MdeModulePkg VariableSmm: Do not need check CommBufferSize buffer
Current code in SmmVariableHandler() checks CommBufferSize
buffer to make sure it points to outside SMRAM in
"case SMM_VARIABLE_FUNCTION_GET_STATISTICS".

But after eaae7b33b1,
CommBufferSize buffer points to SMRAM that was used by
SMM core to cache CommSize from SmmCommunication protocol,
then the check will fail definitely and GET_STATISTICS
feature breaks.

In fact, do not need check CommBufferSize buffer at all
even before eaae7b33b1.
Before eaae7b33b1,
CommBufferSize buffer pointed to gSmmCorePrivate->BufferSize
that is outside SMRAM, the check will success definitely;
after eaae7b33b1,
CommBufferSize buffer points to local variable BufferSize
(in SMRAM) in SmmEntryPoint(), the check is not needed
definitely.

The patch is to remove the check.

Cc: Jiewen Yao <jiewen.yao@intel.com>
Cc: Jeff Fan <jeff.fan@intel.com>
Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Star Zeng <star.zeng@intel.com>
Reviewed-by: Jiewen Yao <jiewen.yao@intel.com>
2016-12-12 09:17:58 +08:00
2016-10-26 09:34:34 -07:00
2014-10-14 16:08:15 +00:00
2014-10-14 16:08:15 +00:00
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