[PATCH 1/4] drivers/misc/sgi-gru: remove unused variable

From: Sudip Mukherjee
Date: Wed Sep 02 2015 - 07:25:16 EST


These variables were only assigned some value and were never used.

Signed-off-by: Sudip Mukherjee <sudip@xxxxxxxxxxxxxxx>
---

I have removed the variables in the functions gru_dump_tfm() and
gru_dump_tgh() but it appeared that the intended logic might have been
something like:
bytes = GRU_NUM_TFM * GRU_CACHE_LINE_BYTES;
if (bytes > ubufend - ubuf)
return -EFBIG;

But since I was not sure so removing the variable was the safe choice as
it is not changing the logic.

drivers/misc/sgi-gru/grukdump.c | 12 ++----------
drivers/misc/sgi-gru/grukservices.c | 2 --
2 files changed, 2 insertions(+), 12 deletions(-)

diff --git a/drivers/misc/sgi-gru/grukdump.c b/drivers/misc/sgi-gru/grukdump.c
index a3700a5..fa515e3 100644
--- a/drivers/misc/sgi-gru/grukdump.c
+++ b/drivers/misc/sgi-gru/grukdump.c
@@ -78,11 +78,7 @@ static int gru_dump_tfm(struct gru_state *gru,
void __user *ubuf, void __user *ubufend)
{
struct gru_tlb_fault_map *tfm;
- int i, ret, bytes;
-
- bytes = GRU_NUM_TFM * GRU_CACHE_LINE_BYTES;
- if (bytes > ubufend - ubuf)
- ret = -EFBIG;
+ int i;

for (i = 0; i < GRU_NUM_TFM; i++) {
tfm = get_tfm(gru->gs_gru_base_vaddr, i);
@@ -99,11 +95,7 @@ static int gru_dump_tgh(struct gru_state *gru,
void __user *ubuf, void __user *ubufend)
{
struct gru_tlb_global_handle *tgh;
- int i, ret, bytes;
-
- bytes = GRU_NUM_TGH * GRU_CACHE_LINE_BYTES;
- if (bytes > ubufend - ubuf)
- ret = -EFBIG;
+ int i;

for (i = 0; i < GRU_NUM_TGH; i++) {
tgh = get_tgh(gru->gs_gru_base_vaddr, i);
diff --git a/drivers/misc/sgi-gru/grukservices.c b/drivers/misc/sgi-gru/grukservices.c
index 913de07..1f0bdab 100644
--- a/drivers/misc/sgi-gru/grukservices.c
+++ b/drivers/misc/sgi-gru/grukservices.c
@@ -997,7 +997,6 @@ static int quicktest1(unsigned long arg)
{
struct gru_message_queue_desc mqd;
void *p, *mq;
- unsigned long *dw;
int i, ret = -EIO;
char mes[GRU_CACHE_LINE_BYTES], *m;

@@ -1007,7 +1006,6 @@ static int quicktest1(unsigned long arg)
return -ENOMEM;
mq = ALIGNUP(p, 1024);
memset(mes, 0xee, sizeof(mes));
- dw = mq;

gru_create_message_queue(&mqd, mq, 8 * GRU_CACHE_LINE_BYTES, 0, 0, 0);
for (i = 0; i < 6; i++) {
--
1.9.1

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