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Message-ID: <01cafe43646575d843ce81221ef4e0cdef6df84b.1706946099.git.christophe.jaillet@wanadoo.fr>
Date: Sat, 3 Feb 2024 08:51:04 +0100
From: Christophe JAILLET <christophe.jaillet@...adoo.fr>
To: krzysztof.kozlowski@...aro.org,
davem@...emloft.net,
edumazet@...gle.com,
kuba@...nel.org,
pabeni@...hat.com
Cc: netdev@...r.kernel.org,
linux-kernel@...r.kernel.org,
kernel-janitors@...r.kernel.org,
Christophe JAILLET <christophe.jaillet@...adoo.fr>
Subject: [PATCH v2 2/2] nfc: hci: Save a few bytes of memory when registering a 'nfc_llc' engine
nfc_llc_register() calls pass a string literal as the 'name' parameter.
So kstrdup_const() can be used instead of kfree() to avoid a memory
allocation in such cases.
Signed-off-by: Christophe JAILLET <christophe.jaillet@...adoo.fr>
---
net/nfc/hci/llc.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/net/nfc/hci/llc.c b/net/nfc/hci/llc.c
index 480c17f372a5..ba91284f4086 100644
--- a/net/nfc/hci/llc.c
+++ b/net/nfc/hci/llc.c
@@ -33,7 +33,7 @@ int __init nfc_llc_init(void)
static void nfc_llc_del_engine(struct nfc_llc_engine *llc_engine)
{
list_del(&llc_engine->entry);
- kfree(llc_engine->name);
+ kfree_const(llc_engine->name);
kfree(llc_engine);
}
@@ -53,7 +53,7 @@ int nfc_llc_register(const char *name, const struct nfc_llc_ops *ops)
if (llc_engine == NULL)
return -ENOMEM;
- llc_engine->name = kstrdup(name, GFP_KERNEL);
+ llc_engine->name = kstrdup_const(name, GFP_KERNEL);
if (llc_engine->name == NULL) {
kfree(llc_engine);
return -ENOMEM;
--
2.43.0
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