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-rw-r--r--sys/dev/sfxge/common/ef10_mcdi.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/sys/dev/sfxge/common/ef10_mcdi.c b/sys/dev/sfxge/common/ef10_mcdi.c
index 22df040..46ea572 100644
--- a/sys/dev/sfxge/common/ef10_mcdi.c
+++ b/sys/dev/sfxge/common/ef10_mcdi.c
@@ -159,6 +159,8 @@ ef10_mcdi_poll_response(
efx_dword_t hdr;
EFSYS_MEM_READD(esmp, 0, &hdr);
+ EFSYS_MEM_READ_BARRIER();
+
return (EFX_DWORD_FIELD(hdr, MCDI_HEADER_RESPONSE) ? B_TRUE : B_FALSE);
}
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