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ACPICA: DT compiler: prevent error if optional field at the end of table is not present

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ACPICA commit a7f73af9003bf4e730db5a133300c01ba7992a01

The data table compiler throws under the following conditions:
 1.) there is a table with a last field that is optional
 2.) if the optional field is not present
 3.) the optional field is the last line of the data table

A change was made to dt_compile_table to return an AE_EOF under
these conditions.  This AE_EOF means that we are at the end of the
file.  The caller to dt_compile_table() is responsible for handling
this case. For DBG2 table, we will complete the compilation of this
subtable.  For other tables, this could be different.

Link: a7f73af9
Signed-off-by: Erik Schmauss <erik.schmauss@intel.com>
Signed-off-by: Bob Moore <robert.moore@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Erik Schmauss 2018-01-03 15:06:27 -08:00 • committed by Rafael J. Wysocki
commit 87cdece169
1 changed files with 4 additions and 2 deletions
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6
include/acpi/acexcep.h
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@ -130,8 +130,9 @@ struct acpi_exception_info {
#define AE_HEX_OVERFLOW EXCEP_ENV (0x0020)
#define AE_DECIMAL_OVERFLOW EXCEP_ENV (0x0021)
#define AE_OCTAL_OVERFLOW EXCEP_ENV (0x0022)
#define AE_END_OF_TABLE EXCEP_ENV (0x0023)
#define AE_CODE_ENV_MAX 0x0022
#define AE_CODE_ENV_MAX 0x0023
/*
* Programmer exceptions
@ -275,7 +276,8 @@ static const struct acpi_exception_info acpi_gbl_exception_names_env[] = {
EXCEP_TXT("AE_DECIMAL_OVERFLOW",
"Overflow during ASCII decimal-to-binary conversion"),
EXCEP_TXT("AE_OCTAL_OVERFLOW",
"Overflow during ASCII octal-to-binary conversion")
"Overflow during ASCII octal-to-binary conversion"),
EXCEP_TXT("AE_END_OF_TABLE", "Reached the end of table")
};
static const struct acpi_exception_info acpi_gbl_exception_names_pgm[] = {