[PATCH 30/30] misc: cxl: flash: Remove unused pointer

From: Lee Jones
Date: Tue Jun 30 2020 - 09:52:04 EST


The DRC index pointer us updated on an OPCODE_ADD, but never
actually read. Remove the used pointer and shift up OPCODE_ADD
to group with OPCODE_DELETE which also provides a noop.

Fixes the following W=1 kernel build warning:

drivers/misc/cxl/flash.c: In function âupdate_devicetreeâ:
drivers/misc/cxl/flash.c:178:16: warning: variable âdrc_indexâ set but not used [-Wunused-but-set-variable]
178 | __be32 *data, drc_index, phandle;
| ^~~~~~~~~

Cc: Frederic Barrat <fbarrat@xxxxxxxxxxxxx>
Cc: Andrew Donnellan <ajd@xxxxxxxxxxxxx>
Cc: linuxppc-dev@xxxxxxxxxxxxxxxx
Signed-off-by: Lee Jones <lee.jones@xxxxxxxxxx>
---
drivers/misc/cxl/flash.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/misc/cxl/flash.c b/drivers/misc/cxl/flash.c
index cb9cca35a2263..24e3dfcc91a74 100644
--- a/drivers/misc/cxl/flash.c
+++ b/drivers/misc/cxl/flash.c
@@ -175,7 +175,7 @@ static int update_devicetree(struct cxl *adapter, s32 scope)
struct update_nodes_workarea *unwa;
u32 action, node_count;
int token, rc, i;
- __be32 *data, drc_index, phandle;
+ __be32 *data, phandle;
char *buf;

token = rtas_token("ibm,update-nodes");
@@ -206,15 +206,12 @@ static int update_devicetree(struct cxl *adapter, s32 scope)

switch (action) {
case OPCODE_DELETE:
+ case OPCODE_ADD:
/* nothing to do */
break;
case OPCODE_UPDATE:
update_node(phandle, scope);
break;
- case OPCODE_ADD:
- /* nothing to do, just move pointer */
- drc_index = *data++;
- break;
}
}
}
--
2.25.1