| Message ID | 20220831074027.13849-7-justin.he@arm.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Make ghes_edac a proper module | expand |
On Wednesday, August 31, 2022 1:40 AM, Jia He wrote: > edac_mc_add_mc* is too late in the init path and that check should happen > as the very first thing in the driver init function. > Add the newly introduced helper ghes_edac_preferred() for the platform > check. I'd suggest to rephase a bit, something like: == Add ghes_edac_preferred() check to chipset-specific edac drivers to ensure that ghes_edac is used on the platform where ghes_edac is preferred over chipset-specific edac driver. Unlike the existing edac_get_owner() check, the ghes_edac_preferred() check works independent to the module_init ordering. == Otherwise, the patch looks good to me. Reviewed-by: Toshi Kani <toshi.kani@hpe.com> Toshi
diff --git a/drivers/edac/amd64_edac.c b/drivers/edac/amd64_edac.c index 2f854feeeb23..5314a934c2bf 100644 --- a/drivers/edac/amd64_edac.c +++ b/drivers/edac/amd64_edac.c @@ -4329,6 +4329,9 @@ static int __init amd64_edac_init(void) int err = -ENODEV; int i; + if (ghes_edac_preferred()) + return -EBUSY; + owner = edac_get_owner(); if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR))) return -EBUSY; diff --git a/drivers/edac/armada_xp_edac.c b/drivers/edac/armada_xp_edac.c index 038abbb83f4b..486532b92ce0 100644 --- a/drivers/edac/armada_xp_edac.c +++ b/drivers/edac/armada_xp_edac.c @@ -599,6 +599,9 @@ static int __init armada_xp_edac_init(void) { int res; + if (ghes_edac_preferred()) + return -EBUSY; + /* only polling is supported */ edac_op_state = EDAC_OPSTATE_POLL; diff --git a/drivers/edac/edac_module.h b/drivers/edac/edac_module.h index 96f6de0c8ff6..3826f82de487 100644 --- a/drivers/edac/edac_module.h +++ b/drivers/edac/edac_module.h @@ -11,6 +11,7 @@ #ifndef __EDAC_MODULE_H__ #define __EDAC_MODULE_H__ +#include <acpi/ghes.h> #include "edac_mc.h" #include "edac_pci.h" #include "edac_device.h" diff --git a/drivers/edac/i10nm_base.c b/drivers/edac/i10nm_base.c index 6cf50ee0b77c..691df9b51622 100644 --- a/drivers/edac/i10nm_base.c +++ b/drivers/edac/i10nm_base.c @@ -548,6 +548,9 @@ static int __init i10nm_init(void) edac_dbg(2, "\n"); + if (ghes_edac_preferred()) + return -EBUSY; + owner = edac_get_owner(); if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR))) return -EBUSY; diff --git a/drivers/edac/igen6_edac.c b/drivers/edac/igen6_edac.c index a07bbfd075d0..4ac6d0c533ec 100644 --- a/drivers/edac/igen6_edac.c +++ b/drivers/edac/igen6_edac.c @@ -1271,6 +1271,9 @@ static int __init igen6_init(void) edac_dbg(2, "\n"); + if (ghes_edac_preferred()) + return -EBUSY; + owner = edac_get_owner(); if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR))) return -ENODEV; diff --git a/drivers/edac/layerscape_edac.c b/drivers/edac/layerscape_edac.c index 94cac7686a56..60ff4c6674cd 100644 --- a/drivers/edac/layerscape_edac.c +++ b/drivers/edac/layerscape_edac.c @@ -38,6 +38,9 @@ static int __init fsl_ddr_mc_init(void) { int res; + if (ghes_edac_preferred()) + return -EBUSY; + /* make sure error reporting method is sane */ switch (edac_op_state) { case EDAC_OPSTATE_POLL: diff --git a/drivers/edac/pnd2_edac.c b/drivers/edac/pnd2_edac.c index a20b299f1202..4ddc43e6c420 100644 --- a/drivers/edac/pnd2_edac.c +++ b/drivers/edac/pnd2_edac.c @@ -1528,6 +1528,9 @@ static int __init pnd2_init(void) edac_dbg(2, "\n"); + if (ghes_edac_preferred()) + return -EBUSY; + owner = edac_get_owner(); if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR))) return -EBUSY; diff --git a/drivers/edac/sb_edac.c b/drivers/edac/sb_edac.c index 9678ab97c7ac..3ff604a5e95a 100644 --- a/drivers/edac/sb_edac.c +++ b/drivers/edac/sb_edac.c @@ -3506,6 +3506,9 @@ static int __init sbridge_init(void) edac_dbg(2, "\n"); + if (ghes_edac_preferred()) + return -EBUSY; + owner = edac_get_owner(); if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR))) return -EBUSY; diff --git a/drivers/edac/skx_base.c b/drivers/edac/skx_base.c index 1abc020d49ab..286370728552 100644 --- a/drivers/edac/skx_base.c +++ b/drivers/edac/skx_base.c @@ -653,6 +653,9 @@ static int __init skx_init(void) edac_dbg(2, "\n"); + if (ghes_edac_preferred()) + return -EBUSY; + owner = edac_get_owner(); if (owner && strncmp(owner, EDAC_MOD_STR, sizeof(EDAC_MOD_STR))) return -EBUSY; diff --git a/drivers/edac/thunderx_edac.c b/drivers/edac/thunderx_edac.c index f13674081cb6..2c4baa6817a9 100644 --- a/drivers/edac/thunderx_edac.c +++ b/drivers/edac/thunderx_edac.c @@ -2114,6 +2114,9 @@ static int __init thunderx_edac_init(void) { int rc = 0; + if (ghes_edac_preferred()) + return -EBUSY; + rc = pci_register_driver(&thunderx_lmc_driver); if (rc) return rc; diff --git a/drivers/edac/xgene_edac.c b/drivers/edac/xgene_edac.c index 54081403db4f..9aa68220b625 100644 --- a/drivers/edac/xgene_edac.c +++ b/drivers/edac/xgene_edac.c @@ -2004,6 +2004,9 @@ static int __init xgene_edac_init(void) { int rc; + if (ghes_edac_preferred()) + return -EBUSY; + /* Make sure error reporting method is sane */ switch (edac_op_state) { case EDAC_OPSTATE_POLL:
edac_mc_add_mc* is too late in the init path and that check should happen as the very first thing in the driver init function. Add the newly introduced helper ghes_edac_preferred() for the platform check. Suggested-by: Toshi Kani <toshi.kani@hpe.com> Signed-off-by: Jia He <justin.he@arm.com> --- drivers/edac/amd64_edac.c | 3 +++ drivers/edac/armada_xp_edac.c | 3 +++ drivers/edac/edac_module.h | 1 + drivers/edac/i10nm_base.c | 3 +++ drivers/edac/igen6_edac.c | 3 +++ drivers/edac/layerscape_edac.c | 3 +++ drivers/edac/pnd2_edac.c | 3 +++ drivers/edac/sb_edac.c | 3 +++ drivers/edac/skx_base.c | 3 +++ drivers/edac/thunderx_edac.c | 3 +++ drivers/edac/xgene_edac.c | 3 +++ 11 files changed, 31 insertions(+)