From 6c640422baa46c5061efa5d2ff1b386bca72253c Mon Sep 17 00:00:00 2001 From: AKASHI Takahiro Date: Thu, 28 Apr 2022 13:49:16 +0900 Subject: [PATCH] efi_loader: disk: allow blk devices even without UCLASS_PARTITION While GPT partition is mandated in UEFI specification, CONFIG_PARTITION is seen optional under the current implementation. So modify efi_disk_rw_blocks() to allow accepting UCLASS_BLK devices. Fixes: commit d97e98c887ed ("efi_loader: disk: use udevice instead of blk_desc") Signed-off-by: AKASHI Takahiro Reviewed-by: Heinrich Schuchardt Tested-by: Mark Kettenis --- lib/efi_loader/efi_disk.c | 29 +++++++++++++++-------------- 1 file changed, 15 insertions(+), 14 deletions(-) diff --git a/lib/efi_loader/efi_disk.c b/lib/efi_loader/efi_disk.c index 8fb5b2363c..f5b462fb16 100644 --- a/lib/efi_loader/efi_disk.c +++ b/lib/efi_loader/efi_disk.c @@ -99,21 +99,22 @@ static efi_status_t efi_disk_rw_blocks(struct efi_block_io *this, if (buffer_size & (blksz - 1)) return EFI_BAD_BUFFER_SIZE; -#if CONFIG_IS_ENABLED(PARTITIONS) - if (direction == EFI_DISK_READ) - n = dev_read(diskobj->dev, lba, blocks, buffer); - else - n = dev_write(diskobj->dev, lba, blocks, buffer); -#else - /* dev is always a block device (UCLASS_BLK) */ - struct blk_desc *desc; + if (CONFIG_IS_ENABLED(PARTITIONS) && + device_get_uclass_id(diskobj->dev) == UCLASS_PARTITION) { + if (direction == EFI_DISK_READ) + n = dev_read(diskobj->dev, lba, blocks, buffer); + else + n = dev_write(diskobj->dev, lba, blocks, buffer); + } else { + /* dev is a block device (UCLASS_BLK) */ + struct blk_desc *desc; - desc = dev_get_uclass_plat(diskobj->dev); - if (direction == EFI_DISK_READ) - n = blk_dread(desc, lba, blocks, buffer); - else - n = blk_dwrite(desc, lba, blocks, buffer); -#endif + desc = dev_get_uclass_plat(diskobj->dev); + if (direction == EFI_DISK_READ) + n = blk_dread(desc, lba, blocks, buffer); + else + n = blk_dwrite(desc, lba, blocks, buffer); + } /* We don't do interrupts, so check for timers cooperatively */ efi_timer_check(); -- 2.39.5