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authorFelix Held <felix-coreboot@felixheld.de>2023-11-10 19:57:03 +0100
committerFelix Held <felix-coreboot@felixheld.de>2023-11-13 14:10:33 +0000
commit6ac6f6a6d096cb9b37e57e4cf3ad6fdccdcfad2f (patch)
tree249b9123a9d0593a285f1679a8b82036f53664b1
parent291a14223aa8e6291858b59ce41b53a1ee9687fe (diff)
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acpi/acpigen: point out what acpigen_write_len_f does
Signed-off-by: Felix Held <felix-coreboot@felixheld.de> Change-Id: Ibaf2f54f2f428f4438ef22b7f9d205db10e144db Reviewed-on: https://review.coreboot.org/c/coreboot/+/79001 Reviewed-by: Nico Huber <nico.h@gmx.de> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Matt DeVillier <matt.devillier@gmail.com>
-rw-r--r--src/acpi/acpigen.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/acpi/acpigen.c b/src/acpi/acpigen.c
index b2db19d249b2..57f0d104886f 100644
--- a/src/acpi/acpigen.c
+++ b/src/acpi/acpigen.c
@@ -29,6 +29,8 @@ void acpigen_write_len_f(void)
{
ASSERT(ltop < (ACPIGEN_LENSTACK_SIZE - 1))
len_stack[ltop++] = gencurrent;
+ /* Reserve 3 bytes for PkgLength. The actual byte values will be written later in the
+ acpigen_pop_len call. */
acpigen_emit_byte(0);
acpigen_emit_byte(0);
acpigen_emit_byte(0);