The patch titled
Subject: ipc: remove use of seq_printf return value
has been added to the -mm tree. Its filename is
ipc-remove-use-of-seq_printf-return-value.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/ipc-remove-use-of-seq_printf-return-value.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/ipc-remove-use-of-seq_printf-return-value.patch
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------------------------------------------------------
From: Joe Perches <joe@xxxxxxxxxxx>
Subject: ipc: remove use of seq_printf return value
The seq_printf return value, because it's frequently misused,
will eventually be converted to void.
See: commit 1f33c41c03da ("seq_file: Rename seq_overflow() to
seq_has_overflowed() and make public")
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
ipc/msg.c | 34 ++++++++++++++++++----------------
ipc/sem.c | 26 ++++++++++++++------------
ipc/shm.c | 42 ++++++++++++++++++++++--------------------
ipc/util.c | 6 ++++--
4 files changed, 58 insertions(+), 50 deletions(-)
diff -puN ipc/msg.c~ipc-remove-use-of-seq_printf-return-value ipc/msg.c
--- a/ipc/msg.c~ipc-remove-use-of-seq_printf-return-value
+++ a/ipc/msg.c
@@ -1015,22 +1015,24 @@ static int sysvipc_msg_proc_show(struct
struct user_namespace *user_ns = seq_user_ns(s);
struct msg_queue *msq = it;
- return seq_printf(s,
- "%10d %10d %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n",
- msq->q_perm.key,
- msq->q_perm.id,
- msq->q_perm.mode,
- msq->q_cbytes,
- msq->q_qnum,
- msq->q_lspid,
- msq->q_lrpid,
- from_kuid_munged(user_ns, msq->q_perm.uid),
- from_kgid_munged(user_ns, msq->q_perm.gid),
- from_kuid_munged(user_ns, msq->q_perm.cuid),
- from_kgid_munged(user_ns, msq->q_perm.cgid),
- msq->q_stime,
- msq->q_rtime,
- msq->q_ctime);
+ seq_printf(s,
+ "%10d %10d %4o %10lu %10lu %5u %5u %5u %5u %5u %5u %10lu %10lu %10lu\n",
+ msq->q_perm.key,
+ msq->q_perm.id,
+ msq->q_perm.mode,
+ msq->q_cbytes,
+ msq->q_qnum,
+ msq->q_lspid,
+ msq->q_lrpid,
+ from_kuid_munged(user_ns, msq->q_perm.uid),
+ from_kgid_munged(user_ns, msq->q_perm.gid),
+ from_kuid_munged(user_ns, msq->q_perm.cuid),
+ from_kgid_munged(user_ns, msq->q_perm.cgid),
+ msq->q_stime,
+ msq->q_rtime,
+ msq->q_ctime);
+
+ return 0;
}
#endif
diff -puN ipc/sem.c~ipc-remove-use-of-seq_printf-return-value ipc/sem.c
--- a/ipc/sem.c~ipc-remove-use-of-seq_printf-return-value
+++ a/ipc/sem.c
@@ -2170,17 +2170,19 @@ static int sysvipc_sem_proc_show(struct
sem_otime = get_semotime(sma);
- return seq_printf(s,
- "%10d %10d %4o %10u %5u %5u %5u %5u %10lu %10lu\n",
- sma->sem_perm.key,
- sma->sem_perm.id,
- sma->sem_perm.mode,
- sma->sem_nsems,
- from_kuid_munged(user_ns, sma->sem_perm.uid),
- from_kgid_munged(user_ns, sma->sem_perm.gid),
- from_kuid_munged(user_ns, sma->sem_perm.cuid),
- from_kgid_munged(user_ns, sma->sem_perm.cgid),
- sem_otime,
- sma->sem_ctime);
+ seq_printf(s,
+ "%10d %10d %4o %10u %5u %5u %5u %5u %10lu %10lu\n",
+ sma->sem_perm.key,
+ sma->sem_perm.id,
+ sma->sem_perm.mode,
+ sma->sem_nsems,
+ from_kuid_munged(user_ns, sma->sem_perm.uid),
+ from_kgid_munged(user_ns, sma->sem_perm.gid),
+ from_kuid_munged(user_ns, sma->sem_perm.cuid),
+ from_kgid_munged(user_ns, sma->sem_perm.cgid),
+ sem_otime,
+ sma->sem_ctime);
+
+ return 0;
}
#endif
diff -puN ipc/shm.c~ipc-remove-use-of-seq_printf-return-value ipc/shm.c
--- a/ipc/shm.c~ipc-remove-use-of-seq_printf-return-value
+++ a/ipc/shm.c
@@ -1342,25 +1342,27 @@ static int sysvipc_shm_proc_show(struct
#define SIZE_SPEC "%21lu"
#endif
- return seq_printf(s,
- "%10d %10d %4o " SIZE_SPEC " %5u %5u "
- "%5lu %5u %5u %5u %5u %10lu %10lu %10lu "
- SIZE_SPEC " " SIZE_SPEC "\n",
- shp->shm_perm.key,
- shp->shm_perm.id,
- shp->shm_perm.mode,
- shp->shm_segsz,
- shp->shm_cprid,
- shp->shm_lprid,
- shp->shm_nattch,
- from_kuid_munged(user_ns, shp->shm_perm.uid),
- from_kgid_munged(user_ns, shp->shm_perm.gid),
- from_kuid_munged(user_ns, shp->shm_perm.cuid),
- from_kgid_munged(user_ns, shp->shm_perm.cgid),
- shp->shm_atim,
- shp->shm_dtim,
- shp->shm_ctim,
- rss * PAGE_SIZE,
- swp * PAGE_SIZE);
+ seq_printf(s,
+ "%10d %10d %4o " SIZE_SPEC " %5u %5u "
+ "%5lu %5u %5u %5u %5u %10lu %10lu %10lu "
+ SIZE_SPEC " " SIZE_SPEC "\n",
+ shp->shm_perm.key,
+ shp->shm_perm.id,
+ shp->shm_perm.mode,
+ shp->shm_segsz,
+ shp->shm_cprid,
+ shp->shm_lprid,
+ shp->shm_nattch,
+ from_kuid_munged(user_ns, shp->shm_perm.uid),
+ from_kgid_munged(user_ns, shp->shm_perm.gid),
+ from_kuid_munged(user_ns, shp->shm_perm.cuid),
+ from_kgid_munged(user_ns, shp->shm_perm.cgid),
+ shp->shm_atim,
+ shp->shm_dtim,
+ shp->shm_ctim,
+ rss * PAGE_SIZE,
+ swp * PAGE_SIZE);
+
+ return 0;
}
#endif
diff -puN ipc/util.c~ipc-remove-use-of-seq_printf-return-value ipc/util.c
--- a/ipc/util.c~ipc-remove-use-of-seq_printf-return-value
+++ a/ipc/util.c
@@ -837,8 +837,10 @@ static int sysvipc_proc_show(struct seq_
struct ipc_proc_iter *iter = s->private;
struct ipc_proc_iface *iface = iter->iface;
- if (it == SEQ_START_TOKEN)
- return seq_puts(s, iface->header);
+ if (it == SEQ_START_TOKEN) {
+ seq_puts(s, iface->header);
+ return 0;
+ }
return iface->show(s, it);
}
_
Patches currently in -mm which might be from joe@xxxxxxxxxxx are
staging-lustre-convert-return-seq_printf-uses.patch
staging-lustre-convert-seq_-hash-functions-to-return-void.patch
staging-lustre-convert-uses-of-int-rc-=-seq_printf.patch
staging-lustre-convert-remaining-uses-of-=-seq_printf.patch
x86-mtrr-if-remove-use-of-seq_printf-return-value.patch
power-wakeup-remove-use-of-seq_printf-return-value.patch
rtc-remove-use-of-seq_printf-return-value.patch
ipc-remove-use-of-seq_printf-return-value.patch
pxa27x_udc-remove-use-of-seq_printf-return-value.patch
microblaze-mb-remove-use-of-seq_printf-return-value.patch
nios2-cpuinfo-remove-use-of-seq_printf-return-value.patch
arm-plat-pxa-remove-use-of-seq_printf-return-value.patch
openrisc-remove-use-of-seq_printf-return-value.patch
cris-remove-use-of-seq_printf-return-value.patch
mfd-ab8500-debugfs-remove-use-of-seq_printf-return-value.patch
staging-i2o-remove-use-of-seq_printf-return-value.patch
staging-rtl8192x-remove-use-of-seq_printf-return-value.patch
s390-remove-use-of-seq_printf-return-value.patch
i8k-remove-use-of-seq_printf-return-value.patch
watchdog-bcm281xx-remove-use-of-seq_printf-return-value.patch
proc-remove-use-of-seq_printf-return-value.patch
cgroup-remove-use-of-seq_printf-return-value.patch
tracing-remove-use-of-seq_printf-return-value.patch
lru_cache-remove-use-of-seq_printf-return-value.patch
parisc-remove-use-of-seq_printf-return-value.patch
regulator-dbx500-remove-use-of-seq_puts-seq_printf-return-value.patch
mm-utilc-add-kstrimdup.patch
checkpatch-improve-no-space-is-necessary-after-a-cast-test.patch
linux-next.patch
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