From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Hans de Goede <hdegoede@redhat.com>
Date: Fri, 15 Jun 2018 09:58:50 +0200
Subject: [PATCH] TPM: Fix compiler warnings

Stop defining our own Event type in tpm.c instead use the one from
the header, so that it matches the function prototype.
Note this requires some further code changes to go from all lowercaps
of the private Event type to the CamelCaps from the header.

Also cast buf, which gets passed as a efi_physicall_address_t to an
integer, to avoid the compiler complaining about passing a pointer as
an integer.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
 grub-core/kern/efi/tpm.c | 24 ++++++++----------------
 1 file changed, 8 insertions(+), 16 deletions(-)

diff --git a/grub-core/kern/efi/tpm.c b/grub-core/kern/efi/tpm.c
index 36e1f69df16..0d3ebe22e57 100644
--- a/grub-core/kern/efi/tpm.c
+++ b/grub-core/kern/efi/tpm.c
@@ -161,21 +161,12 @@ grub_tpm_execute(PassThroughToTPM_InputParamBlock *inbuf,
   }
 }
 
-typedef struct {
-	grub_uint32_t pcrindex;
-	grub_uint32_t eventtype;
-	grub_uint8_t digest[20];
-	grub_uint32_t eventsize;
-	grub_uint8_t event[1];
-} Event;
-
-
 static grub_err_t
 grub_tpm1_log_event(grub_efi_handle_t tpm_handle, unsigned char *buf,
 		    grub_size_t size, grub_uint8_t pcr,
 		    const char *description)
 {
-  Event *event;
+  TCG_PCR_EVENT *event;
   grub_efi_status_t status;
   grub_efi_tpm_protocol_t *tpm;
   grub_efi_physical_address_t lastevent;
@@ -188,18 +179,19 @@ grub_tpm1_log_event(grub_efi_handle_t tpm_handle, unsigned char *buf,
   if (!grub_tpm_present(tpm))
     return 0;
 
-  event = grub_zalloc(sizeof (Event) + grub_strlen(description) + 1);
+  event = grub_zalloc(sizeof (TCG_PCR_EVENT) + grub_strlen(description) + 1);
   if (!event)
     return grub_error (GRUB_ERR_OUT_OF_MEMORY,
 		       N_("cannot allocate TPM event buffer"));
 
-  event->pcrindex = pcr;
-  event->eventtype = EV_IPL;
-  event->eventsize = grub_strlen(description) + 1;
-  grub_memcpy(event->event, description, event->eventsize);
+  event->PCRIndex = pcr;
+  event->EventType = EV_IPL;
+  event->EventSize = grub_strlen(description) + 1;
+  grub_memcpy(event->Event, description, event->EventSize);
 
   algorithm = TCG_ALG_SHA;
-  status = efi_call_7 (tpm->log_extend_event, tpm, buf, (grub_uint64_t) size,
+  status = efi_call_7 (tpm->log_extend_event, tpm,
+                       (unsigned long) buf, (grub_uint64_t) size,
 		       algorithm, event, &eventnum, &lastevent);
 
   switch (status) {