[Spice-devel] [usbredir][PATCH v2] usbredirhost: Fix -Wformat warning

[Fabiano Fidêncio]

Use "PRIu64" macro for printf-ing uint64_t variables, avoiding warnings
like:
usbredirhost.c: In function 'usbredirhost_can_write_iso_package':
usbredirhost.c:1023:19: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'uint64_t {aka long long unsigned int}' [-Wformat=]
             DEBUG("START dropping isoc packets %lu buffer > %lu hi threshold",
                   ^
usbredirhost.c:181:57: note: in definition of macro 'DEBUG'
 #define DEBUG(...)   va_log(host, usbredirparser_debug, __VA_ARGS__)
                                                         ^
usbredirhost.c:1023:19: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'uint64_t {aka long long unsigned int}' [-Wformat=]
             DEBUG("START dropping isoc packets %lu buffer > %lu hi threshold",
                   ^
usbredirhost.c:181:57: note: in definition of macro 'DEBUG'
 #define DEBUG(...)   va_log(host, usbredirparser_debug, __VA_ARGS__)
                                                         ^
usbredirhost.c:1028:19: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'uint64_t {aka long long unsigned int}' [-Wformat=]
             DEBUG("STOP dropping isoc packets %lu buffer < %lu low threshold",
                   ^
usbredirhost.c:181:57: note: in definition of macro 'DEBUG'
 #define DEBUG(...)   va_log(host, usbredirparser_debug, __VA_ARGS__)
                                                         ^
usbredirhost.c:1028:19: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'uint64_t {aka long long unsigned int}' [-Wformat=]
             DEBUG("STOP dropping isoc packets %lu buffer < %lu low threshold",
                   ^
usbredirhost.c:181:57: note: in definition of macro 'DEBUG'
 #define DEBUG(...)   va_log(host, usbredirparser_debug, __VA_ARGS__)
                                                         ^
usbredirhost.c: In function 'usbredirhost_set_iso_threshold':
usbredirhost.c:1162:11: warning: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'uint64_t {aka long long unsigned int}' [-Wformat=]
     DEBUG("higher threshold is %lu bytes | lower threshold is %lu bytes",
           ^
usbredirhost.c:181:57: note: in definition of macro 'DEBUG'
 #define DEBUG(...)   va_log(host, usbredirparser_debug, __VA_ARGS__)
                                                         ^
usbredirhost.c:1162:11: warning: format '%lu' expects argument of type 'long unsigned int', but argument 5 has type 'uint64_t {aka long long unsigned int}' [-Wformat=]
     DEBUG("higher threshold is %lu bytes | lower threshold is %lu bytes",
           ^
usbredirhost.c:181:57: note: in definition of macro 'DEBUG'
 #define DEBUG(...)   va_log(host, usbredirparser_debug, __VA_ARGS__)

Signed-off-by: Fabiano Fidêncio <fidencio at redhat.com>
---
Changes since v1:
- use PRIu64 macro instead of doing a cast to long unsigned.
---
 usbredirhost/usbredirhost.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/usbredirhost/usbredirhost.c b/usbredirhost/usbredirhost.c
index adf9c5f..83baa3b 100644
--- a/usbredirhost/usbredirhost.c
+++ b/usbredirhost/usbredirhost.c
@@ -1020,12 +1020,12 @@ static int usbredirhost_can_write_iso_package(struct usbredirhost *host)
     size = host->buffered_output_size_func(host->func_priv);
     if (size >= host->iso_threshold.higher) {
         if (!host->iso_threshold.dropping)
-            DEBUG("START dropping isoc packets %lu buffer > %lu hi threshold",
+            DEBUG("START dropping isoc packets %" PRIu64 " buffer > %" PRIu64 " hi threshold",
                   size, host->iso_threshold.higher);
         host->iso_threshold.dropping = true;
     } else if (size < host->iso_threshold.lower) {
         if (host->iso_threshold.dropping)
-            DEBUG("STOP dropping isoc packets %lu buffer < %lu low threshold",
+            DEBUG("STOP dropping isoc packets %" PRIu64 " buffer < %" PRIu64 " low threshold",
                   size, host->iso_threshold.lower);
 
         host->iso_threshold.dropping = false;
@@ -1159,7 +1159,7 @@ static void usbredirhost_set_iso_threshold(struct usbredirhost *host,
     uint64_t reference = pkts_per_transfer * transfer_count * max_packetsize;
     host->iso_threshold.lower = reference / 2;
     host->iso_threshold.higher = reference * 3;
-    DEBUG("higher threshold is %lu bytes | lower threshold is %lu bytes",
+    DEBUG("higher threshold is %" PRIu64 " bytes | lower threshold is %" PRIu64 " bytes",
            host->iso_threshold.higher, host->iso_threshold.lower);
 }
 
-- 
2.5.0