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kernel: lantiq: vrx518_tc: add patch fix compilation warning for atm_tc

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Add patch fixing compilation warning for atm_tc module.
Fix compilation warning:
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/vrx518_tc_drv-ugw_8.5.2.10/dcdp/atm_tc.c: In function 'print_datetime':
/home/ansuel/openwrt-ansuel/openwrt/build_dir/target-arm-openwrt-linux-muslgnueabi_musl/linux-ipq40xx_generic/vrx518_tc_drv-ugw_8.5.2.10/dcdp/atm_tc.c:768:32: error: argument to 'sizeof' in 'snprintf' call is the same expression as the destination; did you mean to provide an explicit length? [-Werror=sizeof-pointer-memaccess]
  768 |         snprintf(buffer, sizeof(buffer), "%s.%06d", tmbuf, (int)datetime->tv_nsec / 1000);
      |                                ^
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi 2023-05-09 23:32:16 +02:00
parent f3fc9ac1aa
commit 220739aa0d
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1 changed files with 31 additions and 0 deletions
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31
package/kernel/lantiq/vrx518_tc/patches/204-dcdp-atm_tc-fix-compilation-warning.patch Normal file
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@ -0,0 +1,31 @@
--- a/dcdp/atm_tc.c
+++ b/dcdp/atm_tc.c
@@ -746,7 +746,8 @@ static void atm_aca_init(struct atm_priv
ACA_TXOUT_EN | ACA_RXIN_EN | ACA_RXOUT_EN, 1);
}
-static int print_datetime(char *buffer, const struct timespec64 *datetime)
+static int print_datetime(char *buffer, int buffer_size,
+ const struct timespec64 *datetime)
{
struct tm nowtm;
char tmbuf[64];
@@ -765,7 +766,8 @@ static int print_datetime(char *buffer,
nowtm.tm_hour,
nowtm.tm_min,
nowtm.tm_sec);
- snprintf(buffer, sizeof(buffer), "%s.%06d", tmbuf, (int)datetime->tv_nsec / 1000);
+ snprintf(buffer, sizeof(tmbuf)+buffer_size, "%s.%06d",
+ tmbuf, (int)datetime->tv_nsec / 1000);
return 0;
}
@@ -967,7 +969,7 @@ void show_atm_pvc(struct seq_file *seq,
char buf[64];
seq_printf(seq, "\tNet device: %s\n", pvc->dev->name);
- print_datetime(buf, &(pvc->access_time));
+ print_datetime(buf, sizeof(buf), &(pvc->access_time));
seq_printf(seq, "\tLast user cell: %s\n", buf);
seq_printf(seq, "\tPort: %d\n", pvc->port);
seq_printf(seq, "\tSoftware TX Queue: %u\n", pvc->sw_txq_tbl);