From patchwork Tue Jan 7 06:34:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Heinrich Schuchardt X-Patchwork-Id: 239182 List-Id: U-Boot discussion From: xypron.glpk at gmx.de (Heinrich Schuchardt) Date: Tue, 7 Jan 2020 07:34:24 +0100 Subject: [PATCH v5 1/1] efi_loader: Add guidcpy function Message-ID: <20200107063424.120741-1-xypron.glpk@gmx.de> From: Sughosh Ganu 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 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 --- v5: use void * as argument type --- include/efi_loader.h | 5 +++++ lib/efi_loader/efi_boottime.c | 4 ++-- 2 files changed, 7 insertions(+), 2 deletions(-) -- 2.24.1 diff --git a/include/efi_loader.h b/include/efi_loader.h index 4d401f69d7..e1c9b1fd6a 100644 --- a/include/efi_loader.h +++ b/include/efi_loader.h @@ -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) diff --git a/lib/efi_loader/efi_boottime.c b/lib/efi_loader/efi_boottime.c index 88a7604bbf..3103a50158 100644 --- a/lib/efi_loader/efi_boottime.c +++ b/lib/efi_loader/efi_boottime.c @@ -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;