From: Robert Richter <rrichter@marvell.com>
To: Borislav Petkov <bp@alien8.de>,
Mauro Carvalho Chehab <mchehab@kernel.org>,
Tony Luck <tony.luck@intel.com>
Cc: James Morse <james.morse@arm.com>,
Aristeu Rozanski <aris@redhat.com>,
Robert Richter <rrichter@marvell.com>,
<linux-edac@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: [PATCH 01/11] EDAC/mc: Use int type for parameters of edac_mc_alloc()
Date: Fri, 6 Mar 2020 16:13:08 +0100 [thread overview]
Message-ID: <20200306151318.17422-2-rrichter@marvell.com> (raw)
In-Reply-To: <20200306151318.17422-1-rrichter@marvell.com>
Most iterators use int type as index. mci->mc_idx is also type int. So
use int type for parameters of edac_mc_alloc(). Extend the range check
to check for negative values. There is a type cast now when assigning
variable n_layers to mci->n_layer, it is safe due to the range check.
While at it, rename the users of edac_mc_alloc() to mc_idx as this
fits better here.
Signed-off-by: Robert Richter <rrichter@marvell.com>
---
drivers/edac/edac_mc.c | 7 +++----
drivers/edac/edac_mc.h | 6 +++---
2 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/drivers/edac/edac_mc.c b/drivers/edac/edac_mc.c
index 75ede27bdf6a..8bd3d00b4385 100644
--- a/drivers/edac/edac_mc.c
+++ b/drivers/edac/edac_mc.c
@@ -444,8 +444,7 @@ static int edac_mc_alloc_dimms(struct mem_ctl_info *mci)
return 0;
}
-struct mem_ctl_info *edac_mc_alloc(unsigned int mc_num,
- unsigned int n_layers,
+struct mem_ctl_info *edac_mc_alloc(int mc_idx, int n_layers,
struct edac_mc_layer *layers,
unsigned int sz_pvt)
{
@@ -456,7 +455,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned int mc_num,
void *pvt, *ptr = NULL;
bool per_rank = false;
- if (WARN_ON(n_layers > EDAC_MAX_LAYERS || n_layers == 0))
+ if (WARN_ON(mc_idx < 0 || n_layers < 1 || n_layers > EDAC_MAX_LAYERS))
return NULL;
/*
@@ -505,7 +504,7 @@ struct mem_ctl_info *edac_mc_alloc(unsigned int mc_num,
pvt = sz_pvt ? (((char *)mci) + ((unsigned long)pvt)) : NULL;
/* setup index and various internal pointers */
- mci->mc_idx = mc_num;
+ mci->mc_idx = mc_idx;
mci->tot_dimms = tot_dimms;
mci->pvt_info = pvt;
mci->n_layers = n_layers;
diff --git a/drivers/edac/edac_mc.h b/drivers/edac/edac_mc.h
index 881b00eadf7a..4815f50afea0 100644
--- a/drivers/edac/edac_mc.h
+++ b/drivers/edac/edac_mc.h
@@ -98,7 +98,7 @@ do { \
/**
* edac_mc_alloc() - Allocate and partially fill a struct &mem_ctl_info.
*
- * @mc_num: Memory controller number
+ * @mc_idx: Memory controller number
* @n_layers: Number of MC hierarchy layers
* @layers: Describes each layer as seen by the Memory Controller
* @sz_pvt: size of private storage needed
@@ -122,8 +122,8 @@ do { \
* On success, return a pointer to struct mem_ctl_info pointer;
* %NULL otherwise
*/
-struct mem_ctl_info *edac_mc_alloc(unsigned int mc_num,
- unsigned int n_layers,
+struct mem_ctl_info *edac_mc_alloc(int mc_idx,
+ int n_layers,
struct edac_mc_layer *layers,
unsigned int sz_pvt);
--
2.20.1
next prev parent reply other threads:[~2020-03-06 15:14 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-06 15:13 [PATCH 00/11] EDAC/ghes: Cleanup, rework and improvement of memory reporting Robert Richter
2020-03-06 15:13 ` Robert Richter [this message]
2020-04-06 11:38 ` [PATCH 01/11] EDAC/mc: Use int type for parameters of edac_mc_alloc() Matthias Brugger
2020-03-06 15:13 ` [PATCH 02/11] EDAC/ghes: Setup DIMM label from DMI and use it in error reports Robert Richter
2020-03-06 15:13 ` [PATCH 03/11] EDAC/ghes: Remove local variable rdr_mask in ghes_edac_dmidecode() Robert Richter
2020-04-06 11:51 ` Matthias Brugger
2020-03-06 15:13 ` [PATCH 04/11] EDAC/ghes: Remove unused members of struct ghes_edac_pvt, rename it to ghes_mci Robert Richter
2020-03-06 15:13 ` [PATCH 05/11] EDAC/ghes: Cleanup struct ghes_edac_dimm_fill, rename it to ghes_dimm_fill Robert Richter
2020-03-16 9:29 ` Borislav Petkov
2020-03-06 15:13 ` [PATCH 06/11] EDAC/ghes: Carve out MC device handling into separate functions Robert Richter
2020-03-16 9:31 ` Borislav Petkov
2020-03-16 12:12 ` Robert Richter
2020-03-06 15:13 ` [PATCH 07/11] EDAC/ghes: Have a separate code path for creating the fake MC Robert Richter
2020-03-06 15:13 ` [PATCH 08/11] EDAC/ghes: Carve out code into ghes_edac_register_{one,fake}() Robert Richter
2020-03-06 15:13 ` [PATCH 09/11] EDAC/ghes: Implement DIMM mapping table for SMBIOS handles Robert Richter
2020-03-16 9:40 ` Borislav Petkov
2020-03-06 15:13 ` [PATCH 10/11] EDAC/ghes: Create an own device for each mci Robert Richter
2020-03-16 9:45 ` Borislav Petkov
2020-03-06 15:13 ` [PATCH 11/11] EDAC/ghes: Create one memory controller per physical memory array Robert Richter
2020-03-16 9:51 ` Borislav Petkov
2020-03-17 16:34 ` John Garry
2020-03-17 22:14 ` Kani, Toshi
2020-03-17 22:50 ` Borislav Petkov
2020-03-17 22:53 ` Kani, Toshi
2020-03-18 0:10 ` Robert Richter
2020-03-24 11:32 ` Xiaofei Tan
2020-03-10 20:18 ` [PATCH 00/11] EDAC/ghes: Cleanup, rework and improvement of memory reporting Aristeu Rozanski
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