diff options
| author | Bart Van Assche <bvanassche@acm.org> | 2020-05-19 00:17:07 +0300 |
|---|---|---|
| committer | Martin K. Petersen <martin.petersen@oracle.com> | 2020-05-20 04:43:10 +0300 |
| commit | 37139da1b097e06841d40a6055db64c78755aea9 (patch) | |
| tree | 5203daa6816b7328b048b94b3fa7973fac43624a /drivers/scsi/qla2xxx/qla_def.h | |
| parent | c3888416221849ed46fd35413c7a1d00ee291cbe (diff) | |
| download | linux-37139da1b097e06841d40a6055db64c78755aea9.tar.xz | |
scsi: qla2xxx: Fix the code that reads from mailbox registers
Make the MMIO accessors strongly typed such that the compiler checks
whether the accessor function is used that matches the register width. Fix
those MMIO accesses where another number of bits was read or written than
the size of the register.
Link: https://lore.kernel.org/r/20200518211712.11395-11-bvanassche@acm.org
Cc: Nilesh Javali <njavali@marvell.com>
Cc: Quinn Tran <qutran@marvell.com>
Cc: Martin Wilck <mwilck@suse.com>
Cc: Roman Bolshakov <r.bolshakov@yadro.com>
Reviewed-by: Daniel Wagner <dwagner@suse.de>
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Reviewed-by: Hannes Reinecke <hare@suse.de>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_def.h')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_def.h | 53 |
1 files changed, 44 insertions, 9 deletions
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 5ca46b15ca3c..4b02b48af85d 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -128,15 +128,50 @@ static inline uint32_t make_handle(uint16_t x, uint16_t y) * I/O register */ -#define RD_REG_BYTE(addr) readb(addr) -#define RD_REG_WORD(addr) readw(addr) -#define RD_REG_DWORD(addr) readl(addr) -#define RD_REG_BYTE_RELAXED(addr) readb_relaxed(addr) -#define RD_REG_WORD_RELAXED(addr) readw_relaxed(addr) -#define RD_REG_DWORD_RELAXED(addr) readl_relaxed(addr) -#define WRT_REG_BYTE(addr, data) writeb(data, addr) -#define WRT_REG_WORD(addr, data) writew(data, addr) -#define WRT_REG_DWORD(addr, data) writel(data, addr) +static inline u8 RD_REG_BYTE(const volatile u8 __iomem *addr) +{ + return readb(addr); +} + +static inline u16 RD_REG_WORD(const volatile __le16 __iomem *addr) +{ + return readw(addr); +} + +static inline u32 RD_REG_DWORD(const volatile __le32 __iomem *addr) +{ + return readl(addr); +} + +static inline u8 RD_REG_BYTE_RELAXED(const volatile u8 __iomem *addr) +{ + return readb_relaxed(addr); +} + +static inline u16 RD_REG_WORD_RELAXED(const volatile __le16 __iomem *addr) +{ + return readw_relaxed(addr); +} + +static inline u32 RD_REG_DWORD_RELAXED(const volatile __le32 __iomem *addr) +{ + return readl_relaxed(addr); +} + +static inline void WRT_REG_BYTE(volatile u8 __iomem *addr, u8 data) +{ + return writeb(data, addr); +} + +static inline void WRT_REG_WORD(volatile __le16 __iomem *addr, u16 data) +{ + return writew(data, addr); +} + +static inline void WRT_REG_DWORD(volatile __le32 __iomem *addr, u32 data) +{ + return writel(data, addr); +} /* * ISP83XX specific remote register addresses |