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efi_loader: Add guidcpy function

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Add guidcpy function to copy the source guid to the destination
guid. Use this function instead of memcpy for copying to the
destination guid.

Signed-off-by: Sughosh Ganu <sughosh.ganu@linaro.org>

Use void * instead of efi_guid_t * for arguments to allow copying unaligned
GUIDs. The GUIDs of configuration tables are __packed.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
This commit is contained in:
Sughosh Ganu 2019-12-29 00:01:04 +05:30 committed by Heinrich Schuchardt
parent 9bb758aab6
commit 61e42d9465
2 changed files with 7 additions and 2 deletions
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5
include/efi_loader.h
View File

@ -17,6 +17,11 @@ static inline int guidcmp(const void *g1, const void *g2)
return memcmp(g1, g2, sizeof(efi_guid_t));
}
static inline void *guidcpy(void *dst, const void *src)
{
return memcpy(dst, src, sizeof(efi_guid_t));
}
/* No need for efi loader support in SPL */
#if CONFIG_IS_ENABLED(EFI_LOADER)

4
lib/efi_loader/efi_boottime.c
View File

@ -1401,7 +1401,7 @@ static efi_status_t EFIAPI efi_register_protocol_notify(
}
item->event = event;
memcpy(&item->protocol, protocol, sizeof(efi_guid_t));
guidcpy(&item->protocol, protocol);
INIT_LIST_HEAD(&item->handles);
list_add_tail(&item->link, &efi_register_notify_events);
@ -1632,7 +1632,7 @@ efi_status_t efi_install_configuration_table(const efi_guid_t *guid,
return EFI_OUT_OF_RESOURCES;
/* Add a new entry */
memcpy(&systab.tables[i].guid, guid, sizeof(*guid));
guidcpy(&systab.tables[i].guid, guid);
systab.tables[i].table = table;
systab.nr_tables = i + 1;