Mathias Krause 734c2363eb scsi: lpfc: Properly set WC for DPP mapping ...

[ Upstream commit bffda93a51 ]

Using set_memory_wc() to enable write-combining for the DPP portion of
the MMIO mapping is wrong as set_memory_*() is meant to operate on RAM
only, not MMIO mappings. In fact, as used currently triggers a BUG_ON()
with enabled CONFIG_DEBUG_VIRTUAL.

Simply map the DPP region separately and in addition to the already
existing mappings, avoiding any possible negative side effects for
these.

Fixes: 1351e69fc6 ("scsi: lpfc: Add push-to-adapter support to sli4")
Signed-off-by: Mathias Krause <minipli@grsecurity.net>
Signed-off-by: Justin Tee <justin.tee@broadcom.com>
Reviewed-by: Mathias Krause <minipli@grsecurity.net>
Link: https://patch.msgid.link/20260212192327.141104-1-justintee8345@gmail.com
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>

2026-03-13 17:20:16 +01:00

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lpfc_attr.c

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lpfc_attr.h

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lpfc_bsg.c

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lpfc_bsg.h

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lpfc_compat.h

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lpfc_crtn.h

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lpfc_ct.c

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lpfc_debugfs.c

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lpfc_debugfs.h

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lpfc_disc.h

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lpfc_els.c

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lpfc_hbadisc.c

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lpfc_hw4.h

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lpfc_hw.h

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lpfc_ids.h

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lpfc_init.c

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lpfc_logmsg.h

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lpfc_mbox.c

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lpfc_mem.c

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lpfc_nl.h

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lpfc_nportdisc.c

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lpfc_nvme.c

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lpfc_nvme.h

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lpfc_nvmet.c

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lpfc_scsi.c

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lpfc_scsi.h

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lpfc_sli4.h

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lpfc_sli.c

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lpfc_sli.h

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lpfc_version.h

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lpfc_vmid.c

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lpfc_vport.c

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lpfc_vport.h

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lpfc.h

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Makefile

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