pc-bios/s390-ccw/virtio-blkdev: Remove virtio_assume_scsi()

The virtio_assume_scsi() function is very questionable: First, it is only called for virtio-blk, and not for virtio-scsi, so the naming is already quite confusing. Second, it is called if we detected a "invalid" IPL disk, trying to fix it by blindly setting a sector size of 512. This of course won't work in most cases since disks might have a different sector size for a reason. Thus let's remove this strange function now. The calling code can also be removed completely, since there is another spot in main.c that does "IPL_assert(virtio_ipl_disk_is_valid(), ...)" to make sure that we do not try to IPL from an invalid device. Message-Id: <[email protected]> Reviewed-by: Eric Farman <[email protected]> Signed-off-by: Thomas Huth <[email protected]>
amarioguy · Jul 6, 2022 · 5447de2 · 5447de2
1 parent bbf615f
commit 5447de2
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diff --git a/pc-bios/s390-ccw/virtio-blkdev.c b/pc-bios/s390-ccw/virtio-blkdev.c
@@ -112,23 +112,6 @@ VirtioGDN virtio_guessed_disk_nature(void)
     return virtio_get_device()->guessed_disk_nature;
 }
 
-void virtio_assume_scsi(void)
-{
-    VDev *vdev = virtio_get_device();
-
-    switch (vdev->senseid.cu_model) {
-    case VIRTIO_ID_BLOCK:
-        vdev->guessed_disk_nature = VIRTIO_GDN_SCSI;
-        vdev->config.blk.blk_size = VIRTIO_SCSI_BLOCK_SIZE;
-        vdev->config.blk.physical_block_exp = 0;
-        vdev->blk_factor = 1;
-        break;
-    case VIRTIO_ID_SCSI:
-        vdev->scsi_block_size = VIRTIO_SCSI_BLOCK_SIZE;
-        break;
-    }
-}
-
 void virtio_assume_iso9660(void)
 {
     VDev *vdev = virtio_get_device();
@@ -247,13 +230,6 @@ int virtio_blk_setup_device(SubChannelId schid)
     switch (vdev->senseid.cu_model) {
     case VIRTIO_ID_BLOCK:
         sclp_print("Using virtio-blk.\n");
-        if (!virtio_ipl_disk_is_valid()) {
-            /* make sure all getters but blocksize return 0 for
-             * invalid IPL disk
-             */
-            memset(&vdev->config.blk, 0, sizeof(vdev->config.blk));
-            virtio_assume_scsi();
-        }
         break;
     case VIRTIO_ID_SCSI:
         IPL_assert(vdev->config.scsi.sense_size == VIRTIO_SCSI_SENSE_SIZE,

diff --git a/pc-bios/s390-ccw/virtio.h b/pc-bios/s390-ccw/virtio.h
@@ -182,7 +182,6 @@ enum guessed_disk_nature_type {
 typedef enum guessed_disk_nature_type VirtioGDN;
 
 VirtioGDN virtio_guessed_disk_nature(void);
-void virtio_assume_scsi(void);
 void virtio_assume_eckd(void);
 void virtio_assume_iso9660(void);