diff options
| author | Ingo Molnar <mingo@elte.hu> | 2011-01-05 14:14:42 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2011-01-05 14:14:46 +0100 |
| commit | 27066fd484a32c80630136aa2b91c980f3198f9d (patch) | |
| tree | 78ddabdedbfd7525d13ecd62a745525843f1d0e8 /drivers/ata/pata_cs5536.c | |
| parent | 101e5f77bf35679809586e250b6c62193d2ed179 (diff) | |
| parent | 3c0eee3fe6a3a1c745379547c7e7c904aa64f6d5 (diff) | |
Merge commit 'v2.6.37' into sched/core
Merge reason: Merge the final .37 tree.
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'drivers/ata/pata_cs5536.c')
| -rw-r--r-- | drivers/ata/pata_cs5536.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/ata/pata_cs5536.c b/drivers/ata/pata_cs5536.c index 21ee23f89e88..628c8fae5937 100644 --- a/drivers/ata/pata_cs5536.c +++ b/drivers/ata/pata_cs5536.c @@ -37,10 +37,22 @@ #include <linux/delay.h> #include <linux/libata.h> #include <scsi/scsi_host.h> + +#ifdef CONFIG_X86_32 #include <asm/msr.h> +static int use_msr; +module_param_named(msr, use_msr, int, 0644); +MODULE_PARM_DESC(msr, "Force using MSR to configure IDE function (Default: 0)"); +#else +#undef rdmsr /* avoid accidental MSR usage on, e.g. x86-64 */ +#undef wrmsr +#define rdmsr(x, y, z) do { } while (0) +#define wrmsr(x, y, z) do { } while (0) +#define use_msr 0 +#endif #define DRV_NAME "pata_cs5536" -#define DRV_VERSION "0.0.7" +#define DRV_VERSION "0.0.8" enum { CFG = 0, @@ -75,8 +87,6 @@ enum { IDE_ETC_NODMA = 0x03, }; -static int use_msr; - static const u32 msr_reg[4] = { MSR_IDE_CFG, MSR_IDE_DTC, MSR_IDE_CAST, MSR_IDE_ETC, }; @@ -88,7 +98,7 @@ static const u8 pci_reg[4] = { static inline int cs5536_read(struct pci_dev *pdev, int reg, u32 *val) { if (unlikely(use_msr)) { - u32 dummy; + u32 dummy __maybe_unused; rdmsr(msr_reg[reg], *val, dummy); return 0; @@ -294,8 +304,6 @@ MODULE_DESCRIPTION("low-level driver for the CS5536 IDE controller"); MODULE_LICENSE("GPL"); MODULE_DEVICE_TABLE(pci, cs5536); MODULE_VERSION(DRV_VERSION); -module_param_named(msr, use_msr, int, 0644); -MODULE_PARM_DESC(msr, "Force using MSR to configure IDE function (Default: 0)"); module_init(cs5536_init); module_exit(cs5536_exit); |