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-rw-r--r--drivers/scsi/aacraid/rx.c5
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c23
-rw-r--r--drivers/scsi/scsi_transport_fc.c12
3 files changed, 19 insertions, 21 deletions
diff --git a/drivers/scsi/aacraid/rx.c b/drivers/scsi/aacraid/rx.c
index 04057ab72a8b..84d77fd86e5b 100644
--- a/drivers/scsi/aacraid/rx.c
+++ b/drivers/scsi/aacraid/rx.c
@@ -352,9 +352,8 @@ static int aac_rx_check_health(struct aac_dev *dev)
pci_free_consistent(dev->pdev, sizeof(struct POSTSTATUS),
post, paddr);
if (likely((buffer[0] == '0') && ((buffer[1] == 'x') || (buffer[1] == 'X')))) {
- ret = (buffer[2] <= '9') ? (buffer[2] - '0') : (buffer[2] - 'A' + 10);
- ret <<= 4;
- ret += (buffer[3] <= '9') ? (buffer[3] - '0') : (buffer[3] - 'A' + 10);
+ ret = (hex_to_bin(buffer[2]) << 4) +
+ hex_to_bin(buffer[3]);
}
pci_free_consistent(dev->pdev, 512, buffer, baddr);
return ret;
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index 162704cf6a96..ad05b266e950 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -25,6 +25,7 @@
#include <linux/interrupt.h>
#include <linux/aer.h>
#include <linux/gfp.h>
+#include <linux/kernel.h>
#include <scsi/scsi.h>
#include <scsi/scsi_device.h>
@@ -1795,12 +1796,11 @@ lpfc_soft_wwpn_store(struct device *dev, struct device_attribute *attr,
/* Validate and store the new name */
for (i=0, j=0; i < 16; i++) {
- if ((*buf >= 'a') && (*buf <= 'f'))
- j = ((j << 4) | ((*buf++ -'a') + 10));
- else if ((*buf >= 'A') && (*buf <= 'F'))
- j = ((j << 4) | ((*buf++ -'A') + 10));
- else if ((*buf >= '0') && (*buf <= '9'))
- j = ((j << 4) | (*buf++ -'0'));
+ int value;
+
+ value = hex_to_bin(*buf++);
+ if (value >= 0)
+ j = (j << 4) | value;
else
return -EINVAL;
if (i % 2) {
@@ -1888,12 +1888,11 @@ lpfc_soft_wwnn_store(struct device *dev, struct device_attribute *attr,
/* Validate and store the new name */
for (i=0, j=0; i < 16; i++) {
- if ((*buf >= 'a') && (*buf <= 'f'))
- j = ((j << 4) | ((*buf++ -'a') + 10));
- else if ((*buf >= 'A') && (*buf <= 'F'))
- j = ((j << 4) | ((*buf++ -'A') + 10));
- else if ((*buf >= '0') && (*buf <= '9'))
- j = ((j << 4) | (*buf++ -'0'));
+ int value;
+
+ value = hex_to_bin(*buf++);
+ if (value >= 0)
+ j = (j << 4) | value;
else
return -EINVAL;
if (i % 2) {
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index edb6b362a8fa..d7e470a06180 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -29,6 +29,7 @@
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/delay.h>
+#include <linux/kernel.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport.h>
@@ -1730,12 +1731,11 @@ fc_parse_wwn(const char *ns, u64 *nm)
/* Validate and store the new name */
for (i=0, j=0; i < 16; i++) {
- if ((*ns >= 'a') && (*ns <= 'f'))
- j = ((j << 4) | ((*ns++ -'a') + 10));
- else if ((*ns >= 'A') && (*ns <= 'F'))
- j = ((j << 4) | ((*ns++ -'A') + 10));
- else if ((*ns >= '0') && (*ns <= '9'))
- j = ((j << 4) | (*ns++ -'0'));
+ int value;
+
+ value = hex_to_bin(*ns++);
+ if (value >= 0)
+ j = (j << 4) | value;
else
return -EINVAL;
if (i % 2) {