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Date: Wed, 29 Aug 2018 16:53:50 +0100
From: Colin King <colin.king@...onical.com>
To: David Airlie <airlied@...ux.ie>, Arnd Bergmann <arnd@...db.de>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc: kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] char: agp: remove several redundant variables
From: Colin Ian King <colin.king@...onical.com>
Several variables are being assigned but never used hence they
are redundant and can be removed.
Cleans up clang warnings:
variable 'num_segments' set but not used [-Wunused-but-set-variable]
variable 'arqsz' set but not used [-Wunused-but-set-variable]
variable 'mcapndx' set but not used [-Wunused-but-set-variable]
variable 'current_size' set but not used [-Wunused-but-set-variable]
Signed-off-by: Colin Ian King <colin.king@...onical.com>
---
drivers/char/agp/frontend.c | 3 +--
drivers/char/agp/isoch.c | 9 +--------
drivers/char/agp/via-agp.c | 3 ---
3 files changed, 2 insertions(+), 13 deletions(-)
diff --git a/drivers/char/agp/frontend.c b/drivers/char/agp/frontend.c
index f6955888e676..47098648502d 100644
--- a/drivers/char/agp/frontend.c
+++ b/drivers/char/agp/frontend.c
@@ -102,14 +102,13 @@ agp_segment_priv *agp_find_seg_in_client(const struct agp_client *client,
int size, pgprot_t page_prot)
{
struct agp_segment_priv *seg;
- int num_segments, i;
+ int i;
off_t pg_start;
size_t pg_count;
pg_start = offset / 4096;
pg_count = size / 4096;
seg = *(client->segments);
- num_segments = client->num_segments;
for (i = 0; i < client->num_segments; i++) {
if ((seg[i].pg_start == pg_start) &&
diff --git a/drivers/char/agp/isoch.c b/drivers/char/agp/isoch.c
index 31c374b1b91b..7ecf20a6d19c 100644
--- a/drivers/char/agp/isoch.c
+++ b/drivers/char/agp/isoch.c
@@ -84,7 +84,6 @@ static int agp_3_5_isochronous_node_enable(struct agp_bridge_data *bridge,
unsigned int cdev = 0;
u32 mnistat, tnistat, tstatus, mcmd;
u16 tnicmd, mnicmd;
- u8 mcapndx;
u32 tot_bw = 0, tot_n = 0, tot_rq = 0, y_max, rq_isoch, rq_async;
u32 step, rem, rem_isoch, rem_async;
int ret = 0;
@@ -138,8 +137,6 @@ static int agp_3_5_isochronous_node_enable(struct agp_bridge_data *bridge,
cur = list_entry(pos, struct agp_3_5_dev, list);
dev = cur->dev;
- mcapndx = cur->capndx;
-
pci_read_config_dword(dev, cur->capndx+AGPNISTAT, &mnistat);
master[cdev].maxbw = (mnistat >> 16) & 0xff;
@@ -251,8 +248,6 @@ static int agp_3_5_isochronous_node_enable(struct agp_bridge_data *bridge,
cur = master[cdev].dev;
dev = cur->dev;
- mcapndx = cur->capndx;
-
master[cdev].rq += (cdev == ndevs - 1)
? (rem_async + rem_isoch) : step;
@@ -319,7 +314,7 @@ int agp_3_5_enable(struct agp_bridge_data *bridge)
{
struct pci_dev *td = bridge->dev, *dev = NULL;
u8 mcapndx;
- u32 isoch, arqsz;
+ u32 isoch;
u32 tstatus, mstatus, ncapid;
u32 mmajor;
u16 mpstat;
@@ -334,8 +329,6 @@ int agp_3_5_enable(struct agp_bridge_data *bridge)
if (isoch == 0) /* isoch xfers not available, bail out. */
return -ENODEV;
- arqsz = (tstatus >> 13) & 0x7;
-
/*
* Allocate a head for our AGP 3.5 device list
* (multiple AGP v3 devices are allowed behind a single bridge).
diff --git a/drivers/char/agp/via-agp.c b/drivers/char/agp/via-agp.c
index a4961d35e940..48cbea8d5c7a 100644
--- a/drivers/char/agp/via-agp.c
+++ b/drivers/char/agp/via-agp.c
@@ -127,9 +127,6 @@ static int via_fetch_size_agp3(void)
static int via_configure_agp3(void)
{
u32 temp;
- struct aper_size_info_16 *current_size;
-
- current_size = A_SIZE_16(agp_bridge->current_size);
/* address to map to */
agp_bridge->gart_bus_addr = pci_bus_address(agp_bridge->dev,
--
2.17.1
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