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s390/pci: use proper endianness annotations

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Add proper annotation to the bar definition and use casts within the
bus accessors. Also change the sequence in the accessors to do the
shifts in the native byte order. No functional change.

Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
This commit is contained in:
Sebastian Ott 2016-12-17 15:35:39 +01:00 committed by Martin Schwidefsky
parent 90b3baa232
commit 5064cd3506
2 changed files with 5 additions and 5 deletions
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2
arch/s390/include/asm/pci_clp.h
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@ -85,7 +85,7 @@ struct clp_rsp_query_pci {
u32 fid; /* pci function id */
u8 bar_size[PCI_BAR_COUNT];
u16 pchid;
u32 bar[PCI_BAR_COUNT];
__le32 bar[PCI_BAR_COUNT];
u8 pfip[CLP_PFIP_NR_SEGMENTS]; /* pci function internal path */
u32 : 16;
u8 fmb_len;

8
arch/s390/pci/pci.c
View file

@ -224,8 +224,8 @@ static int zpci_cfg_load(struct zpci_dev *zdev, int offset, u32 *val, u8 len)
rc = zpci_load(&data, req, offset);
if (!rc) {
data = data << ((8 - len) * 8);
data = le64_to_cpu(data);
data = le64_to_cpu((__force __le64) data);
data >>= (8 - len) * 8;
*val = (u32) data;
} else
*val = 0xffffffff;
@ -238,8 +238,8 @@ static int zpci_cfg_store(struct zpci_dev *zdev, int offset, u32 val, u8 len)
u64 data = val;
int rc;
data = cpu_to_le64(data);
data = data >> ((8 - len) * 8);
data <<= (8 - len) * 8;
data = (__force u64) cpu_to_le64(data);
rc = zpci_store(data, req, offset);
return rc;
}