5.15-stable review patch. If anyone has any objections, please let me know.
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From: Alexander Egorenkov egorenar@linux.ibm.com
[ Upstream commit 7faacaeaf6ce12fae78751de5ad869d8f1e1cd7a ]
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: d70e38cb1dee ("s390: nvme dump support") Reviewed-by: Heiko Carstens hca@linux.ibm.com Signed-off-by: Alexander Egorenkov egorenar@linux.ibm.com Signed-off-by: Alexander Gordeev agordeev@linux.ibm.com Signed-off-by: Sasha Levin sashal@kernel.org --- arch/s390/kernel/ipl.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c index 77246ff5b0141..d2ba82873abfd 100644 --- a/arch/s390/kernel/ipl.c +++ b/arch/s390/kernel/ipl.c @@ -1603,9 +1603,9 @@ 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; }