[PATCH v3 04/10] EDAC/mc: Determine mci pointer from the error descriptor

Robert Richter
2020-01-23T09:03:15Z

Each struct mci has its own error descriptor. Create a function
error_desc_to_mci() to determine the corresponding mci from an error
descriptor. This eases the parameter list of edac_raw_mc_handle_
error() as the mci pointer do not need to be passed any longer.

Signed-off-by: Robert Richter <rrichter@marvell.com>
Reviewed-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Acked-by: Aristeu Rozanski <aris@redhat.com>
---
drivers/edac/edac_mc.c | 11 ++++++++---
drivers/edac/edac_mc.h | 4 +---
drivers/edac/ghes_edac.c | 2 +-
3 files changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 8ef69d24297d..3c00c046acc9 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -55,6 +55,11 @@ static LIST_HEAD(mc_devices);
*/
static const char *edac_mc_owner;

+static struct mem_ctl_info *error_desc_to_mci(struct edac_raw_error_desc *e)
+{
+ return container_of(e, struct mem_ctl_info, error_desc);
+}
+
int edac_get_report_status(void)
{
return edac_report;
@@ -1086,9 +1091,9 @@ static void edac_ue_error(struct mem_ctl_info *mci,
edac_inc_ue_error(mci, enable_per_layer_report, pos, error_count);
}

-void edac_raw_mc_handle_error(struct mem_ctl_info *mci,
- struct edac_raw_error_desc *e)
+void edac_raw_mc_handle_error(struct edac_raw_error_desc *e)
{
+ struct mem_ctl_info *mci = error_desc_to_mci(e);
char detail[80];
int pos[EDAC_MAX_LAYERS] = { e->top_layer, e->mid_layer, e->low_layer };
u8 grain_bits;
@@ -1284,6 +1289,6 @@ void edac_mc_handle_error(const enum hw_event_mc_err_type type,
if (p > e->location)
*(p - 1) = '\0';

- edac_raw_mc_handle_error(mci, e);
+ edac_raw_mc_handle_error(e);
}
EXPORT_SYMBOL_GPL(edac_mc_handle_error);
diff --git a/drivers/edac/edac_mc.h b/drivers/edac/edac_mc.h
index 5d78be774f9e..881b00eadf7a 100644
--- a/drivers/edac/edac_mc.h
+++ b/drivers/edac/edac_mc.h
@@ -212,15 +212,13 @@ extern int edac_mc_find_csrow_by_page(struct mem_ctl_info *mci,
* edac_raw_mc_handle_error() - Reports a memory event to userspace without
* doing anything to discover the error location.
*
- * @mci: a struct mem_ctl_info pointer
* @e: error description
*
* This raw function is used internally by edac_mc_handle_error(). It should
* only be called directly when the hardware error come directly from BIOS,
* like in the case of APEI GHES driver.
*/
-void edac_raw_mc_handle_error(struct mem_ctl_info *mci,
- struct edac_raw_error_desc *e);
+void edac_raw_mc_handle_error(struct edac_raw_error_desc *e);

/**
* edac_mc_handle_error() - Reports a memory event to userspace.
diff --git a/drivers/edac/ghes_edac.c b/drivers/edac/ghes_edac.c
index 7c3e5264a41e..bef8a428c429 100644
--- a/drivers/edac/ghes_edac.c
+++ b/drivers/edac/ghes_edac.c
@@ -441,7 +441,7 @@ void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)
if (p > pvt->other_detail)
*(p - 1) = '\0';

- edac_raw_mc_handle_error(mci, e);
+ edac_raw_mc_handle_error(e);

unlock:
spin_unlock_irqrestore(&ghes_lock, flags);
--
2.20.1