diff mbox series

[14/55] drivers/infiniband: replace open-coded string copy with get_task_comm

Message ID 20220120020826.bnZuddQgG%akpm@linux-foundation.org (mailing list archive)
State New
Headers show
Series [01/55] mm: percpu: generalize percpu related config | expand

Commit Message

Andrew Morton Jan. 20, 2022, 2:08 a.m. UTC 
From: Yafang Shao <laoar.shao@gmail.com>
Subject: drivers/infiniband: replace open-coded string copy with get_task_comm

We'd better use the helper get_task_comm() rather than the open-coded
strlcpy() to get task comm.  As the comment above the hard-coded 16, we
can replace it with TASK_COMM_LEN.

Link: https://lkml.kernel.org/r/20211120112738.45980-4-laoar.shao@gmail.com
Signed-off-by: Yafang Shao <laoar.shao@gmail.com>
Acked-by: Dennis Dalessandro <dennis.dalessandro@cornelisnetworks.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Arnaldo Carvalho de Melo <arnaldo.melo@gmail.com>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Andrii Nakryiko <andrii.nakryiko@gmail.com>
Cc: Michal Miroslaw <mirq-linux@rere.qmqm.pl>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Kees Cook <keescook@chromium.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 drivers/infiniband/hw/qib/qib.h          |    2 +-
 drivers/infiniband/hw/qib/qib_file_ops.c |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)
diff mbox series

Patch

--- a/drivers/infiniband/hw/qib/qib_file_ops.c~drivers-infiniband-replace-open-coded-string-copy-with-get_task_comm
+++ a/drivers/infiniband/hw/qib/qib_file_ops.c
@@ -1321,7 +1321,7 @@  static int setup_ctxt(struct qib_pportda
 	rcd->tid_pg_list = ptmp;
 	rcd->pid = current->pid;
 	init_waitqueue_head(&dd->rcd[ctxt]->wait);
-	strlcpy(rcd->comm, current->comm, sizeof(rcd->comm));
+	get_task_comm(rcd->comm, current);
 	ctxt_fp(fp) = rcd;
 	qib_stats.sps_ctxts++;
 	dd->freectxts--;
--- a/drivers/infiniband/hw/qib/qib.h~drivers-infiniband-replace-open-coded-string-copy-with-get_task_comm
+++ a/drivers/infiniband/hw/qib/qib.h
@@ -196,7 +196,7 @@  struct qib_ctxtdata {
 	pid_t pid;
 	pid_t subpid[QLOGIC_IB_MAX_SUBCTXT];
 	/* same size as task_struct .comm[], command that opened context */
-	char comm[16];
+	char comm[TASK_COMM_LEN];
 	/* pkeys set by this use of this ctxt */
 	u16 pkeys[4];
 	/* so file ops can get at unit */