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Date: Fri, 26 Mar 2021 14:34:58 +0000
From: Lee Jones <lee.jones@...aro.org>
To: lee.jones@...aro.org
Cc: linux-kernel@...r.kernel.org,
Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
Jiri Kosina <jikos@...nel.org>,
Benjamin Tissoires <benjamin.tissoires@...hat.com>,
Daniel Drubin <daniel.drubin@...el.com>,
linux-input@...r.kernel.org, Arnd Bergmann <arnd@...db.de>
Subject: [PATCH 25/25] 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@...ux.intel.com>
Cc: Jiri Kosina <jikos@...nel.org>
Cc: Benjamin Tissoires <benjamin.tissoires@...hat.com>
Cc: Daniel Drubin <daniel.drubin@...el.com>
Cc: linux-input@...r.kernel.org
Suggested-by: Arnd Bergmann <arnd@...db.de>
Signed-off-by: Lee Jones <lee.jones@...aro.org>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
---
drivers/hid/intel-ish-hid/ishtp-hid-client.c | 4 ++--
drivers/hid/intel-ish-hid/ishtp-hid.h | 4 ++--
drivers/hid/intel-ish-hid/ishtp/bus.c | 4 ++--
drivers/hid/intel-ish-hid/ishtp/ishtp-dev.h | 4 ++--
include/linux/intel-ish-client-if.h | 8 +++++++-
5 files changed, 15 insertions(+), 9 deletions(-)
diff --git a/drivers/hid/intel-ish-hid/ishtp-hid-client.c b/drivers/hid/intel-ish-hid/ishtp-hid-client.c
index 042a7091802dd..6b1fa971b33e2 100644
--- a/drivers/hid/intel-ish-hid/ishtp-hid-client.c
+++ b/drivers/hid/intel-ish-hid/ishtp-hid-client.c
@@ -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) {
diff --git a/drivers/hid/intel-ish-hid/ishtp-hid.h b/drivers/hid/intel-ish-hid/ishtp-hid.h
index e2423f7d2b547..f88443a7d935e 100644
--- a/drivers/hid/intel-ish-hid/ishtp-hid.h
+++ b/drivers/hid/intel-ish-hid/ishtp-hid.h
@@ -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 {
diff --git a/drivers/hid/intel-ish-hid/ishtp/bus.c b/drivers/hid/intel-ish-hid/ishtp/bus.c
index c1c7d5356208d..f0802b047ed8d 100644
--- a/drivers/hid/intel-ish-hid/ishtp/bus.c
+++ b/drivers/hid/intel-ish-hid/ishtp/bus.c
@@ -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;
}
diff --git a/drivers/hid/intel-ish-hid/ishtp/ishtp-dev.h b/drivers/hid/intel-ish-hid/ishtp/ishtp-dev.h
index 1cc6364aa957f..f579b16e6d7a9 100644
--- a/drivers/hid/intel-ish-hid/ishtp/ishtp-dev.h
+++ b/drivers/hid/intel-ish-hid/ishtp/ishtp-dev.h
@@ -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;
diff --git a/include/linux/intel-ish-client-if.h b/include/linux/intel-ish-client-if.h
index 94669e21dc8b3..25e2b4e805023 100644
--- a/include/linux/intel-ish-client-if.h
+++ b/include/linux/intel-ish-client-if.h
@@ -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);
--
2.27.0
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