Re: [PATCH v2 0/3] s390/pci: Updates to PCI insn tracing

[Heiko Carstens <hca@linux.ibm.com>]

On Mon, Oct 12, 2026 at 04:21:48PM +0200, Gerd Bayer wrote:
> With this series applied (+ a test patch to trace RPCIT even in CC0
> situations) an entry in /sys/kernel/debug/s390dbf/pci_error/hex_ascii
> looks like the following (removed time-stamp and ASCII transcription,
> replaced instruction address with "<IA>"):

...

> Signed-off-by: Gerd Bayer <gbayer@linux.ibm.com>
> ---
> Changes in v2:
> - 1/3 and 3/3: Replace unnamed bitfields with named dummy members for
>   padding (address Sashiko findings)
> - Link to v1: https://lore.kernel.org/r/20261007-rpcit_trcfh_upstream-v1-0-8a2718cfb90b@linux.ibm.com
> 
> ---
> Gerd Bayer (3):
>       s390/pci: Adjust alignment in insn trace
>       s390/pci: Use 32-bit fh outside of inline asm
>       s390/pci: Add function handle to RPCIT insn trace
> 
>  arch/s390/include/asm/pci_insn.h |  2 +-
>  arch/s390/pci/pci_insn.c         | 42 +++++++++++++++++++++++++++++++++-------
>  drivers/iommu/s390-iommu.c       |  8 +++-----
>  3 files changed, 39 insertions(+), 13 deletions(-)

Even though this touches drivers/iommu/s390-iommu.c I assume this
should go upstream via s390. Is this correct?