[PATCH 13/19] EDAC, mc: Determine mci pointer from the error descriptor

Robert Richter
2019-10-10T20:26:11Z

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.

While at it, reorder parameters of edac_raw_mc_handle_error().

Signed-off-by: Robert Richter <rrichter@marvell.com>
---
drivers/edac/edac_mc.c | 13 +++++++++----
drivers/edac/edac_mc.h | 8 +++-----
drivers/edac/ghes_edac.c | 2 +-
3 files changed, 13 insertions(+), 10 deletions(-)

diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index ca206854b8ee..9e8c5716a8c0 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -1040,10 +1040,15 @@ static void edac_ue_error(struct mem_ctl_info *mci,
edac_inc_ue_error(mci, dimm, error_count);
}

-void edac_raw_mc_handle_error(struct mem_ctl_info *mci,
- struct dimm_info *dimm,
- struct edac_raw_error_desc *e)
+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);
+}
+
+void edac_raw_mc_handle_error(struct edac_raw_error_desc *e,
+ struct dimm_info *dimm)
{
+ struct mem_ctl_info *mci = error_desc_to_mci(e);
char detail[80];

/* Memory type dependent details about the error */
@@ -1243,6 +1248,6 @@ void edac_mc_handle_error(const enum hw_event_mc_err_type type,

dimm = edac_get_dimm(mci, top_layer, mid_layer, low_layer);

- edac_raw_mc_handle_error(mci, dimm, e);
+ edac_raw_mc_handle_error(e, dimm);
}
EXPORT_SYMBOL_GPL(edac_mc_handle_error);
diff --git a/drivers/edac/edac_mc.h b/drivers/edac/edac_mc.h
index a8f1b5b5e873..3b01d5d9d7bc 100644
--- a/drivers/edac/edac_mc.h
+++ b/drivers/edac/edac_mc.h
@@ -212,17 +212,15 @@ 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
- * @dimm: a struct dimm_info pointer
* @e: error description
+ * @dimm: a struct dimm_info pointer
*
* 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 dimm_info *dimm,
- struct edac_raw_error_desc *e);
+void edac_raw_mc_handle_error(struct edac_raw_error_desc *e,
+ struct dimm_info *dimm);

/**
* 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 1db1c012bed9..8078d4ec9631 100644
--- a/drivers/edac/ghes_edac.c
+++ b/drivers/edac/ghes_edac.c
@@ -439,7 +439,7 @@ void ghes_edac_report_mem_error(int sev, struct cper_sec_mem_err *mem_err)

dimm = edac_get_dimm_by_index(mci, e->top_layer);

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

spin_unlock_irqrestore(&ghes_lock, flags);
}
--
2.20.1