HID: ishtp-hid-client: Fix 'suggest-attribute=format' compiler warning

Fixes the following W=1 kernel build warning(s):

 drivers/hid/intel-ish-hid/ishtp/bus.c: In function ‘ishtp_trace_callback’:
 drivers/hid/intel-ish-hid/ishtp/bus.c:876:29: warning: return type might be a candidate for a format attribute [-Wsuggest-attribute=format]
 876 | return cl_device->ishtp_dev->print_log;
 | ~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~

Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: Jiri Kosina <jikos@kernel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Cc: Daniel Drubin <daniel.drubin@intel.com>
Cc: linux-input@vger.kernel.org
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
This commit is contained in:
Lee Jones 2021-03-26 14:34:58 +00:00 committed by Benjamin Tissoires
parent 509405cd7e
commit c57179c735
5 changed files with 15 additions and 9 deletions

View File

@ -784,7 +784,7 @@ static void hid_ishtp_cl_reset_handler(struct work_struct *work)
}
}
void (*hid_print_trace)(void *unused, const char *format, ...);
ishtp_print_log ishtp_hid_print_trace;
/**
* hid_ishtp_cl_probe() - ISHTP client driver probe
@ -823,7 +823,7 @@ static int hid_ishtp_cl_probe(struct ishtp_cl_device *cl_device)
INIT_WORK(&client_data->work, hid_ishtp_cl_reset_handler);
hid_print_trace = ishtp_trace_callback(cl_device);
ishtp_hid_print_trace = ishtp_trace_callback(cl_device);
rv = hid_ishtp_cl_init(hid_ishtp_cl, 0);
if (rv) {

View File

@ -16,9 +16,9 @@
#define IS_RESPONSE 0x80
/* Used to dump to Linux trace buffer, if enabled */
extern void (*hid_print_trace)(void *unused, const char *format, ...);
extern ishtp_print_log ishtp_hid_print_trace;
#define hid_ishtp_trace(client, ...) \
(hid_print_trace)(NULL, __VA_ARGS__)
(ishtp_hid_print_trace)(NULL, __VA_ARGS__)
/* ISH HID message structure */
struct hostif_msg_hdr {

View File

@ -869,9 +869,9 @@ EXPORT_SYMBOL(ishtp_get_pci_device);
*
* This interface is used to return trace callback function pointer.
*
* Return: void *.
* Return: *ishtp_print_log()
*/
void *ishtp_trace_callback(struct ishtp_cl_device *cl_device)
ishtp_print_log ishtp_trace_callback(struct ishtp_cl_device *cl_device)
{
return cl_device->ishtp_dev->print_log;
}

View File

@ -10,6 +10,7 @@
#include <linux/types.h>
#include <linux/spinlock.h>
#include <linux/intel-ish-client-if.h>
#include "bus.h"
#include "hbm.h"
@ -202,8 +203,7 @@ struct ishtp_device {
uint64_t ishtp_host_dma_rx_buf_phys;
/* Dump to trace buffers if enabled*/
__printf(2, 3) void (*print_log)(struct ishtp_device *dev,
const char *format, ...);
ishtp_print_log print_log;
/* Debug stats */
unsigned int ipc_rx_cnt;

View File

@ -8,11 +8,17 @@
#ifndef _INTEL_ISH_CLIENT_IF_H_
#define _INTEL_ISH_CLIENT_IF_H_
#include <linux/device.h>
#include <linux/uuid.h>
struct ishtp_cl_device;
struct ishtp_device;
struct ishtp_cl;
struct ishtp_fw_client;
typedef __printf(2, 3) void (*ishtp_print_log)(struct ishtp_device *dev,
const char *format, ...);
/* Client state */
enum cl_state {
ISHTP_CL_INITIALIZING = 0,
@ -76,7 +82,7 @@ int ishtp_register_event_cb(struct ishtp_cl_device *device,
/* Get the device * from ishtp device instance */
struct device *ishtp_device(struct ishtp_cl_device *cl_device);
/* Trace interface for clients */
void *ishtp_trace_callback(struct ishtp_cl_device *cl_device);
ishtp_print_log ishtp_trace_callback(struct ishtp_cl_device *cl_device);
/* Get device pointer of PCI device for DMA acces */
struct device *ishtp_get_pci_device(struct ishtp_cl_device *cl_device);