s390/ipl: Fix incorrect initialization of nvme dump block

JIRA: https://issues.redhat.com/browse/RHEL-86670

commit 7faacae
Author: Alexander Egorenkov <[email protected]>
Date:   Fri May 10 12:41:26 2024 +0200

    s390/ipl: Fix incorrect initialization of nvme dump block

    Initialize the correct fields of the nvme dump block.
    This bug had not been detected before because first, the fcp and nvme fields
    of struct ipl_parameter_block are part of the same union and, therefore,
    overlap in memory and second, they are identical in structure and size.

    Fixes: d70e38c ("s390: nvme dump support")
    Reviewed-by: Heiko Carstens <[email protected]>
    Signed-off-by: Alexander Egorenkov <[email protected]>
    Signed-off-by: Alexander Gordeev <[email protected]>

Signed-off-by: Thomas Huth <[email protected]>

Author: huth

arch/s390/kernel/ipl.c

@@ -1864,9 +1864,9 @@ static int __init dump_nvme_init(void)
 	}
 	dump_block_nvme->hdr.len = IPL_BP_NVME_LEN;
 	dump_block_nvme->hdr.version = IPL_PARM_BLOCK_VERSION;
-	dump_block_nvme->fcp.len = IPL_BP0_NVME_LEN;
-	dump_block_nvme->fcp.pbt = IPL_PBT_NVME;
-	dump_block_nvme->fcp.opt = IPL_PB0_NVME_OPT_DUMP;
+	dump_block_nvme->nvme.len = IPL_BP0_NVME_LEN;
+	dump_block_nvme->nvme.pbt = IPL_PBT_NVME;
+	dump_block_nvme->nvme.opt = IPL_PB0_NVME_OPT_DUMP;
 	dump_capabilities |= DUMP_TYPE_NVME;
 	return 0;
 }