lkml.org 
[lkml]   [2022]   [Jul]   [18]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
Subject[PATCH v2] target: iscsi: fix clang -Wformat warnings
From
When building with Clang we encounter these warnings:
| drivers/target/iscsi/iscsi_target_login.c:719:24: error: format
| specifies type 'unsigned short' but the argument has type 'int'
| [-Werror,-Wformat] " from node: %s\n", atomic_read(&sess->nconn),
-
| drivers/target/iscsi/iscsi_target_login.c:767:12: error: format
| specifies type 'unsigned short' but the argument has type 'int'
| [-Werror,-Wformat] " %s\n", atomic_read(&sess->nconn),
-
| drivers/target/iscsi/iscsi_target.c:4365:12: error: format specifies
| type 'unsigned short' but the argument has type 'int' [-Werror,-Wformat]
| " %s\n", atomic_read(&sess->nconn)

For all warnings, the format specifier is `%hu` which describes an
unsigned short. The resulting type of atomic_read is an int. The
proposed fix is to listen to Clang and swap the format specifier.

Link: https://github.com/ClangBuiltLinux/linux/issues/378
Signed-off-by: Justin Stitt <justinstitt@google.com>
---
diff from v1->v2:
Combined two similar patches into one:
* https://lore.kernel.org/all/20220708221314.466294-1-justinstitt@google.com/
* https://lore.kernel.org/llvm/20220708211447.135209-1-justinstitt@google.com/

drivers/target/iscsi/iscsi_target.c | 2 +-
drivers/target/iscsi/iscsi_target_login.c | 4 ++--
2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c
index e368f038ff5c..bfb717065344 100644
--- a/drivers/target/iscsi/iscsi_target.c
+++ b/drivers/target/iscsi/iscsi_target.c
@@ -4361,7 +4361,7 @@ int iscsit_close_connection(

spin_lock_bh(&sess->conn_lock);
atomic_dec(&sess->nconn);
- pr_debug("Decremented iSCSI connection count to %hu from node:"
+ pr_debug("Decremented iSCSI connection count to %d from node:"
" %s\n", atomic_read(&sess->nconn),
sess->sess_ops->InitiatorName);
/*
diff --git a/drivers/target/iscsi/iscsi_target_login.c b/drivers/target/iscsi/iscsi_target_login.c
index 6b94eecc4790..0778591abae7 100644
--- a/drivers/target/iscsi/iscsi_target_login.c
+++ b/drivers/target/iscsi/iscsi_target_login.c
@@ -715,7 +715,7 @@ void iscsi_post_login_handler(

list_add_tail(&conn->conn_list, &sess->sess_conn_list);
atomic_inc(&sess->nconn);
- pr_debug("Incremented iSCSI Connection count to %hu"
+ pr_debug("Incremented iSCSI Connection count to %d"
" from node: %s\n", atomic_read(&sess->nconn),
sess->sess_ops->InitiatorName);
spin_unlock_bh(&sess->conn_lock);
@@ -763,7 +763,7 @@ void iscsi_post_login_handler(
spin_lock_bh(&sess->conn_lock);
list_add_tail(&conn->conn_list, &sess->sess_conn_list);
atomic_inc(&sess->nconn);
- pr_debug("Incremented iSCSI Connection count to %hu from node:"
+ pr_debug("Incremented iSCSI Connection count to %d from node:"
" %s\n", atomic_read(&sess->nconn),
sess->sess_ops->InitiatorName);
spin_unlock_bh(&sess->conn_lock);
--
2.37.0.170.g444d1eabd0-goog
\
 
 \ /
  Last update: 2022-07-18 20:05    [W:0.107 / U:0.708 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site