From: Jens Taprogge <jens.taprogge@xxxxxxxxxxxx>
Define memory address space, fix sparse warnings and mark the structs
reflecting hardware memory layout "packed" to be on the safe side.
Signed-off-by: Jens Taprogge <jens.taprogge@xxxxxxxxxxxx>
Signed-off-by: Samuel Iglesias Gonsálvez <siglesias@xxxxxxxxxx>
---
drivers/staging/ipack/devices/ipoctal.c | 14 ++---
drivers/staging/ipack/devices/scc2698.h | 96 +++++++++++++++----------------
2 files changed, 55 insertions(+), 55 deletions(-)
diff --git a/drivers/staging/ipack/devices/ipoctal.c b/drivers/staging/ipack/devices/ipoctal.c
index 085b6c0..76f8427 100644
--- a/drivers/staging/ipack/devices/ipoctal.c
+++ b/drivers/staging/ipack/devices/ipoctal.c
@@ -40,8 +40,8 @@ struct ipoctal {
struct list_head list;
struct ipack_device *dev;
unsigned int board_id;
- struct scc2698_channel *chan_regs;
- struct scc2698_block *block_regs;
+ struct scc2698_channel __iomem *chan_regs;
+ struct scc2698_block __iomem *block_regs;
struct ipoctal_stats chan_stats[NR_CHANNELS];
unsigned int nb_bytes[NR_CHANNELS];
unsigned int count_wr[NR_CHANNELS];
@@ -59,8 +59,8 @@ struct ipoctal {
static LIST_HEAD(ipoctal_list);
static inline void ipoctal_write_io_reg(struct ipoctal *ipoctal,
- unsigned char *dest,
- unsigned char value)
+ u8 __iomem *dest,
+ u8 value)
{
iowrite8(value, dest);
}
@@ -73,7 +73,7 @@ static inline void ipoctal_write_cr_cmd(struct ipoctal *ipoctal,
}
static inline unsigned char ipoctal_read_io_reg(struct ipoctal *ipoctal,
- unsigned char *src)
+ u8 __iomem *src)
{
return ioread8(src);
}
@@ -391,9 +391,9 @@ static int ipoctal_inst_slot(struct ipoctal *ipoctal, unsigned int bus_nr,
/* Save the virtual address to access the registers easily */
ipoctal->chan_regs =
- (struct scc2698_channel *) ipoctal->dev->io_space.address;
+ (struct scc2698_channel __iomem *) ipoctal->dev->io_space.address;
ipoctal->block_regs =
- (struct scc2698_block *) ipoctal->dev->io_space.address;
+ (struct scc2698_block __iomem *) ipoctal->dev->io_space.address;
/* Disable RX and TX before touching anything */
for (i = 0; i < NR_CHANNELS ; i++) {
diff --git a/drivers/staging/ipack/devices/scc2698.h b/drivers/staging/ipack/devices/scc2698.h
index 47f6269..fcab427 100644
--- a/drivers/staging/ipack/devices/scc2698.h
+++ b/drivers/staging/ipack/devices/scc2698.h
@@ -23,21 +23,21 @@
struct scc2698_channel {
union {
struct {
- unsigned char d0, mr; /* Mode register 1/2*/
- unsigned char d1, sr; /* Status register */
- unsigned char d2, r1; /* reserved */
- unsigned char d3, rhr; /* Receive holding register (R) */
- unsigned char junk[8]; /* other crap for block control */
- } r; /* Read access */
+ u8 d0, mr; /* Mode register 1/2*/
+ u8 d1, sr; /* Status register */
+ u8 d2, r1; /* reserved */
+ u8 d3, rhr; /* Receive holding register (R) */
+ u8 junk[8]; /* other crap for block control */
+ } __packed r; /* Read access */
struct {
- unsigned char d0, mr; /* Mode register 1/2 */
- unsigned char d1, csr; /* Clock select register */
- unsigned char d2, cr; /* Command register */
- unsigned char d3, thr; /* Transmit holding register */
- unsigned char junk[8]; /* other crap for block control */
- } w; /* Write access */
+ u8 d0, mr; /* Mode register 1/2 */
+ u8 d1, csr; /* Clock select register */
+ u8 d2, cr; /* Command register */
+ u8 d3, thr; /* Transmit holding register */
+ u8 junk[8]; /* other crap for block control */
+ } __packed w; /* Write access */
} u;
-};
+} __packed;
/*
* struct scc2698_block - Block access to scc2698 IO
@@ -50,43 +50,43 @@ struct scc2698_channel {
struct scc2698_block {
union {
struct {
- unsigned char d0, mra; /* Mode register 1/2 (a) */
- unsigned char d1, sra; /* Status register (a) */
- unsigned char d2, r1; /* reserved */
- unsigned char d3, rhra; /* Receive holding register (a) */
- unsigned char d4, ipcr; /* Input port change register of block */
- unsigned char d5, isr; /* Interrupt status register of block */
- unsigned char d6, ctur; /* Counter timer upper register of block */
- unsigned char d7, ctlr; /* Counter timer lower register of block */
- unsigned char d8, mrb; /* Mode register 1/2 (b) */
- unsigned char d9, srb; /* Status register (b) */
- unsigned char da, r2; /* reserved */
- unsigned char db, rhrb; /* Receive holding register (b) */
- unsigned char dc, r3; /* reserved */
- unsigned char dd, ip; /* Input port register of block */
- unsigned char de, ctg; /* Start counter timer of block */
- unsigned char df, cts; /* Stop counter timer of block */
- } r; /* Read access */
+ u8 d0, mra; /* Mode register 1/2 (a) */
+ u8 d1, sra; /* Status register (a) */
+ u8 d2, r1; /* reserved */
+ u8 d3, rhra; /* Receive holding register (a) */
+ u8 d4, ipcr; /* Input port change register of block */
+ u8 d5, isr; /* Interrupt status register of block */
+ u8 d6, ctur; /* Counter timer upper register of block */
+ u8 d7, ctlr; /* Counter timer lower register of block */
+ u8 d8, mrb; /* Mode register 1/2 (b) */
+ u8 d9, srb; /* Status register (b) */
+ u8 da, r2; /* reserved */
+ u8 db, rhrb; /* Receive holding register (b) */
+ u8 dc, r3; /* reserved */
+ u8 dd, ip; /* Input port register of block */
+ u8 de, ctg; /* Start counter timer of block */
+ u8 df, cts; /* Stop counter timer of block */
+ } __packed r; /* Read access */
struct {
- unsigned char d0, mra; /* Mode register 1/2 (a) */
- unsigned char d1, csra; /* Clock select register (a) */
- unsigned char d2, cra; /* Command register (a) */
- unsigned char d3, thra; /* Transmit holding register (a) */
- unsigned char d4, acr; /* Auxiliary control register of block */
- unsigned char d5, imr; /* Interrupt mask register of block */
- unsigned char d6, ctu; /* Counter timer upper register of block */
- unsigned char d7, ctl; /* Counter timer lower register of block */
- unsigned char d8, mrb; /* Mode register 1/2 (b) */
- unsigned char d9, csrb; /* Clock select register (a) */
- unsigned char da, crb; /* Command register (b) */
- unsigned char db, thrb; /* Transmit holding register (b) */
- unsigned char dc, r1; /* reserved */
- unsigned char dd, opcr; /* Output port configuration register of block */
- unsigned char de, r2; /* reserved */
- unsigned char df, r3; /* reserved */
- } w; /* Write access */
+ u8 d0, mra; /* Mode register 1/2 (a) */
+ u8 d1, csra; /* Clock select register (a) */
+ u8 d2, cra; /* Command register (a) */
+ u8 d3, thra; /* Transmit holding register (a) */
+ u8 d4, acr; /* Auxiliary control register of block */
+ u8 d5, imr; /* Interrupt mask register of block */
+ u8 d6, ctu; /* Counter timer upper register of block */
+ u8 d7, ctl; /* Counter timer lower register of block */
+ u8 d8, mrb; /* Mode register 1/2 (b) */
+ u8 d9, csrb; /* Clock select register (a) */
+ u8 da, crb; /* Command register (b) */
+ u8 db, thrb; /* Transmit holding register (b) */
+ u8 dc, r1; /* reserved */
+ u8 dd, opcr; /* Output port configuration register of block */
+ u8 de, r2; /* reserved */
+ u8 df, r3; /* reserved */
+ } __packed w; /* Write access */
} u;
-} ;
+} __packed;
#define MR1_CHRL_5_BITS (0x0 << 0)
#define MR1_CHRL_6_BITS (0x1 << 0)
--
1.7.10.4
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