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path: root/drivers/usb/host/ohci-dbg.c
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Diffstat (limited to 'drivers/usb/host/ohci-dbg.c')
-rw-r--r--drivers/usb/host/ohci-dbg.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c
index 5179fcd73d8..e4bcb62b930 100644
--- a/drivers/usb/host/ohci-dbg.c
+++ b/drivers/usb/host/ohci-dbg.c
@@ -82,6 +82,14 @@ urb_print(struct urb * urb, char * str, int small, int status)
ohci_dbg(ohci,format, ## arg ); \
} while (0);
+/* Version for use where "next" is the address of a local variable */
+#define ohci_dbg_nosw(ohci, next, size, format, arg...) \
+ do { \
+ unsigned s_len; \
+ s_len = scnprintf(*next, *size, format, ## arg); \
+ *size -= s_len; *next += s_len; \
+ } while (0);
+
static void ohci_dump_intr_mask (
struct ohci_hcd *ohci,
@@ -653,7 +661,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf)
/* dump driver info, then registers in spec order */
- ohci_dbg_sw (ohci, &next, &size,
+ ohci_dbg_nosw(ohci, &next, &size,
"bus %s, device %s\n"
"%s\n"
"%s\n",
@@ -672,7 +680,7 @@ static ssize_t fill_registers_buffer(struct debug_buffer *buf)
/* hcca */
if (ohci->hcca)
- ohci_dbg_sw (ohci, &next, &size,
+ ohci_dbg_nosw(ohci, &next, &size,
"hcca frame 0x%04x\n", ohci_frame_no(ohci));
/* other registers mostly affect frame timings */