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Message-ID: <20081129003347.2295622f@jirka.pirko.cz>
Date: Sat, 29 Nov 2008 00:33:47 +0100
From: Jirka Pirko <jirka@...ko.cz>
To: linux-kernel@...r.kernel.org
Cc: akpm@...ux-foundation.org
Subject: [PATCH] get rid of some "may be used uninitialized" compiler
warnings
Just used uninitialized_var() macro when it's appropriate. I checked
that warning is meaningless in all these cases.
Signed-off-by: Jirka Pirko <jirka@...ko.cz>
---
arch/x86/kernel/cpu/mtrr/main.c | 2 +-
drivers/ata/sata_via.c | 2 +-
drivers/net/niu.c | 4 ++--
drivers/video/aty/aty128fb.c | 2 +-
kernel/cpuset.c | 2 +-
5 files changed, 6 insertions(+), 6 deletions(-)
diff --git a/arch/x86/kernel/cpu/mtrr/main.c b/arch/x86/kernel/cpu/mtrr/main.c
index c78c048..c94c0ef 100644
--- a/arch/x86/kernel/cpu/mtrr/main.c
+++ b/arch/x86/kernel/cpu/mtrr/main.c
@@ -1361,7 +1361,7 @@ static int __init mtrr_cleanup(unsigned address_bits)
memset(result, 0, sizeof(result));
for (gran_size = (1ULL<<16); gran_size < (1ULL<<32); gran_size <<= 1) {
char gran_factor;
- unsigned long gran_base;
+ unsigned long uninitialized_var(gran_base);
if (debug_print)
gran_base = to_size_factor(gran_size >> 10, &gran_factor);
diff --git a/drivers/ata/sata_via.c b/drivers/ata/sata_via.c
index c18935f..01df26b 100644
--- a/drivers/ata/sata_via.c
+++ b/drivers/ata/sata_via.c
@@ -564,7 +564,7 @@ static int svia_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
static int printed_version;
unsigned int i;
int rc;
- struct ata_host *host;
+ struct ata_host *uninitialized_var(host);
int board_id = (int) ent->driver_data;
const unsigned *bar_sizes;
diff --git a/drivers/net/niu.c b/drivers/net/niu.c
index 1b6f548..0d88aa0 100644
--- a/drivers/net/niu.c
+++ b/drivers/net/niu.c
@@ -448,7 +448,7 @@ static int serdes_init_niu_1g_serdes(struct niu *np)
struct niu_link_config *lp = &np->link_config;
u16 pll_cfg, pll_sts;
int max_retry = 100;
- u64 sig, mask, val;
+ u64 uninitialized_var(sig), mask, val;
u32 tx_cfg, rx_cfg;
unsigned long i;
int err;
@@ -547,7 +547,7 @@ static int serdes_init_niu_10g_serdes(struct niu *np)
struct niu_link_config *lp = &np->link_config;
u32 tx_cfg, rx_cfg, pll_cfg, pll_sts;
int max_retry = 100;
- u64 sig, mask, val;
+ u64 uninitialized_var(sig), mask, val;
unsigned long i;
int err;
diff --git a/drivers/video/aty/aty128fb.c b/drivers/video/aty/aty128fb.c
index 243ea4a..7364610 100644
--- a/drivers/video/aty/aty128fb.c
+++ b/drivers/video/aty/aty128fb.c
@@ -1326,7 +1326,7 @@ static int aty128_var_to_pll(u32 period_in_ps, struct aty128_pll *pll,
{
const struct aty128_constants c = par->constants;
unsigned char post_dividers[] = {1,2,4,8,3,6,12};
- u32 output_freq;
+ u32 uninitialized_var(output_freq);
u32 vclk; /* in .01 MHz */
int i = 0;
u32 n, d;
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index da7ff61..0a58fa0 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -585,7 +585,7 @@ static int generate_sched_domains(cpumask_t **domains,
int i, j, k; /* indices for partition finding loops */
cpumask_t *doms; /* resulting partition; i.e. sched domains */
struct sched_domain_attr *dattr; /* attributes for custom domains */
- int ndoms; /* number of sched domains in result */
+ int uninitialized_var(ndoms); /* number of sched domains in result */
int nslot; /* next empty doms[] cpumask_t slot */
doms = NULL;
--
1.5.4.3
--
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