2015-11-23 21:42:39

by Aya Mahfouz

[permalink] [raw]
Subject: [PATCH] staging: lustre: ptlrpc: constify ptlrpc_sec_cops structs

Constifies ptlrpc_sec_cops structures in the lustre driver
since they are not modified after their initialization.

Detected and found using Coccinelle.

Suggested-by: Julia Lawall <[email protected]>
Signed-off-by: Aya Mahfouz <[email protected]>
---
drivers/staging/lustre/lustre/ptlrpc/sec.c | 2 +-
drivers/staging/lustre/lustre/ptlrpc/sec_null.c | 2 +-
drivers/staging/lustre/lustre/ptlrpc/sec_plain.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec.c b/drivers/staging/lustre/lustre/ptlrpc/sec.c
index 39f5261..f959897 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec.c
@@ -1580,7 +1580,7 @@ int sptlrpc_cli_enlarge_reqbuf(struct ptlrpc_request *req,
int segment, int newsize)
{
struct ptlrpc_cli_ctx *ctx = req->rq_cli_ctx;
- struct ptlrpc_sec_cops *cops;
+ const struct ptlrpc_sec_cops *cops;
struct lustre_msg *msg = req->rq_reqmsg;

LASSERT(ctx);
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_null.c b/drivers/staging/lustre/lustre/ptlrpc/sec_null.c
index ebfa609..ffdad15 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_null.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_null.c
@@ -378,7 +378,7 @@ static struct ptlrpc_ctx_ops null_ctx_ops = {
.verify = null_ctx_verify,
};

-static struct ptlrpc_sec_cops null_sec_cops = {
+static const struct ptlrpc_sec_cops null_sec_cops = {
.create_sec = null_create_sec,
.destroy_sec = null_destroy_sec,
.lookup_ctx = null_lookup_ctx,
diff --git a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
index f448b45..71351de 100644
--- a/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
+++ b/drivers/staging/lustre/lustre/ptlrpc/sec_plain.c
@@ -956,7 +956,7 @@ static struct ptlrpc_ctx_ops plain_ctx_ops = {
.unwrap_bulk = plain_cli_unwrap_bulk,
};

-static struct ptlrpc_sec_cops plain_sec_cops = {
+static const struct ptlrpc_sec_cops plain_sec_cops = {
.create_sec = plain_create_sec,
.destroy_sec = plain_destroy_sec,
.kill_sec = plain_kill_sec,
--
2.4.3


--
Kind Regards,
Aya Saif El-yazal Mahfouz


2015-11-23 22:10:42

by kernel test robot

[permalink] [raw]
Subject: Re: [PATCH] staging: lustre: ptlrpc: constify ptlrpc_sec_cops structs

Hi Aya,

[auto build test WARNING on staging/staging-testing]
[also build test WARNING on v4.4-rc2 next-20151123]

url: https://github.com/0day-ci/linux/commits/Aya-Mahfouz/staging-lustre-ptlrpc-constify-ptlrpc_sec_cops-structs/20151124-054437
config: tile-allyesconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=tile

All warnings (new ones prefixed by >>):

>> drivers/staging/lustre/lustre/ptlrpc/sec_null.c:404:2: warning: initialization discards 'const' qualifier from pointer target type [enabled by default]

vim +/const +404 drivers/staging/lustre/lustre/ptlrpc/sec_null.c

d7e09d039 Peng Tao 2013-05-02 388 .free_reqbuf = null_free_reqbuf,
d7e09d039 Peng Tao 2013-05-02 389 .free_repbuf = null_free_repbuf,
d7e09d039 Peng Tao 2013-05-02 390 .enlarge_reqbuf = null_enlarge_reqbuf,
d7e09d039 Peng Tao 2013-05-02 391 };
d7e09d039 Peng Tao 2013-05-02 392
d7e09d039 Peng Tao 2013-05-02 393 static struct ptlrpc_sec_sops null_sec_sops = {
d7e09d039 Peng Tao 2013-05-02 394 .accept = null_accept,
d7e09d039 Peng Tao 2013-05-02 395 .alloc_rs = null_alloc_rs,
d7e09d039 Peng Tao 2013-05-02 396 .authorize = null_authorize,
d7e09d039 Peng Tao 2013-05-02 397 .free_rs = null_free_rs,
d7e09d039 Peng Tao 2013-05-02 398 };
d7e09d039 Peng Tao 2013-05-02 399
d7e09d039 Peng Tao 2013-05-02 400 static struct ptlrpc_sec_policy null_policy = {
d7e09d039 Peng Tao 2013-05-02 401 .sp_owner = THIS_MODULE,
d7e09d039 Peng Tao 2013-05-02 402 .sp_name = "sec.null",
d7e09d039 Peng Tao 2013-05-02 403 .sp_policy = SPTLRPC_POLICY_NULL,
d7e09d039 Peng Tao 2013-05-02 @404 .sp_cops = &null_sec_cops,
d7e09d039 Peng Tao 2013-05-02 405 .sp_sops = &null_sec_sops,
d7e09d039 Peng Tao 2013-05-02 406 };
d7e09d039 Peng Tao 2013-05-02 407
d7e09d039 Peng Tao 2013-05-02 408 static void null_init_internal(void)
d7e09d039 Peng Tao 2013-05-02 409 {
d7e09d039 Peng Tao 2013-05-02 410 static HLIST_HEAD(__list);
d7e09d039 Peng Tao 2013-05-02 411
d7e09d039 Peng Tao 2013-05-02 412 null_sec.ps_policy = &null_policy;

:::::: The code at line 404 was first introduced by commit
:::::: d7e09d0397e84eefbabfd9cb353221f3c6448d83 staging: add Lustre file system client support

:::::: TO: Peng Tao <[email protected]>
:::::: CC: Greg Kroah-Hartman <[email protected]>

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation


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