Re: [PATCH v2 1/5] ACPI: add in a bad_madt_entry() function to eventually replace the macro

From: Sudeep Holla
Date: Mon Sep 07 2015 - 11:32:16 EST

Hi Al,

On 19/08/15 23:07, Al Stone wrote:

I finally got a chance to try this series on Juno. Well it exposed a firmware bug in MADT table :)


acpi_tbl_entry_handler handler,
@@ -245,6 +484,8 @@ acpi_parse_entries(char *id, unsigned long table_size,
table_end) {
if (entry->type == entry_id
&& (!max_entries || count < max_entries)) {
+ if (bad_madt_entry(table_header, entry))
+ return -EINVAL;

Not sure if we can have the above check here unconditionally.
Currently I can see there are 2 other users of acpi_parse_entries i.e.
PCC and NUMA. So may be it can be made conditional or return success for
non-MADT tables from bad_madt_entry ?

Other than that, you can add for ARM64 specific parts:
Reviewed-and-tested-by: Sudeep Holla <sudeep.holla@xxxxxxx>

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