From: Fabio Aiuto <fabioaiuto83@gmail.com>
To: gregkh@linuxfoundation.org, linux-kernel@vger.kernel.org,
apw@canonical.com, joe@perches.com
Subject: CHECKPATCH: missing a warning soon after include files decl -c
Date: Sat, 20 Mar 2021 11:54:24 +0100 [thread overview]
Message-ID: <20210320105424.GA3698@agape.jhs> (raw)
Hi,
here's an issue in checkpatch.pl
$ perl script/checkpatch.pl -f drivers/staging/rtl8723bs/core/rtw_ap.c
I get three warning related to an extern declaration
WARNING: externs should be avoided in .c files
#14: FILE: drivers/staging/rtl8723bs/core/rtw_ap.c:14:
+extern unsigned char WMM_OUI[];
--
WARNING: externs should be avoided in .c files
#15: FILE: drivers/staging/rtl8723bs/core/rtw_ap.c:15:
+extern unsigned char WPS_OUI[];
--
WARNING: externs should be avoided in .c files
#16: FILE: drivers/staging/rtl8723bs/core/rtw_ap.c:16:
+extern unsigned char P2P_OUI[];
----------------------
but the file checked has 4 extern declaration:
-----------------------------
#define _RTW_AP_C_
#include <drv_types.h>
#include <rtw_debug.h>
#include <asm/unaligned.h>
extern unsigned char RTW_WPA_OUI[];
extern unsigned char WMM_OUI[];
extern unsigned char WPS_OUI[];
extern unsigned char P2P_OUI[];
void init_mlme_ap_info(struct adapter *padapter)
-------------------------------
If I add a ';' this way:
----------------------------
#define _RTW_AP_C_
#include <drv_types.h>
#include <rtw_debug.h>
#include <asm/unaligned.h>
;
extern unsigned char RTW_WPA_OUI[];
extern unsigned char WMM_OUI[];
extern unsigned char WPS_OUI[];
extern unsigned char P2P_OUI[];
void init_mlme_ap_info(struct adapter *padapter)
--------------------------------
the missing warning appears:
----------------------------------
WARNING: externs should be avoided in .c files
#13: FILE: drivers/staging/rtl8723bs/core/rtw_ap.c:13:
+extern unsigned char RTW_WPA_OUI[];
--
WARNING: externs should be avoided in .c files
#14: FILE: drivers/staging/rtl8723bs/core/rtw_ap.c:14:
+extern unsigned char WMM_OUI[];
--
WARNING: externs should be avoided in .c files
#15: FILE: drivers/staging/rtl8723bs/core/rtw_ap.c:15:
+extern unsigned char WPS_OUI[];
--
WARNING: externs should be avoided in .c files
#16: FILE: drivers/staging/rtl8723bs/core/rtw_ap.c:16:
+extern unsigned char P2P_OUI[];
-------------------------------------------
Applying this ugly patch to debug:
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index df8b23dc1eb0..ecbbb731361c 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -6810,6 +6810,11 @@ sub process {
{
WARN("AVOID_EXTERNS",
"externs should be avoided in .c files\n" . $herecurr);
+ } elsif ($realfile =~ /\.c$/ && defined $stat &&
+ $stat =~ /extern\s+/)
+ {
+ WARN("AVOID_EXTERNS",
+ "print stat value\n" . $stat);
}
# check for function declarations that have arguments without identifier names
--------------
I get:
WARNING: print stat value
+#include <XXXXXXXXXXX>
#include <XXXXXXXXXXX>
#include <XXXXXXXXXXXXXXX>
extern unsigned char RTW_WPA_OUI[];
WARNING: externs should be avoided in .c files
#14: FILE: drivers/staging/rtl8723bs/core/rtw_ap.c:14:
+extern unsigned char WMM_OUI[];
WARNING: externs should be avoided in .c files
#15: FILE: drivers/staging/rtl8723bs/core/rtw_ap.c:15:
+extern unsigned char WPS_OUI[];
WARNING: externs should be avoided in .c files
#16: FILE: drivers/staging/rtl8723bs/core/rtw_ap.c:16:
+extern unsigned char P2P_OUI[];
I don't know if it's best to fix the regex of the particular "extern in .c files issue"
or maybe how the statement is computed. Should a statement represent a single line?
Suggestions are welcome,
fabio
next reply other threads:[~2021-03-20 11:13 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-20 10:54 Fabio Aiuto [this message]
2021-03-20 10:59 ` CHECKPATCH: missing a warning soon after include files decl -c Greg KH
2021-03-20 11:28 ` Joe Perches
2021-03-20 14:17 ` Fabio Aiuto
2021-03-24 9:58 ` Fabio Aiuto
2021-03-20 14:49 ` Fabio Aiuto
2021-03-21 7:03 ` Greg KH
2021-03-22 14:31 ` [PATCH 00/11] staging: rtl8723bs: fix extern declaration checkpatch issues Fabio Aiuto
2021-03-22 14:31 ` [PATCH 01/11] staging: rtl8723bs: delete extern declarations in core/rtw_ap.c Fabio Aiuto
2021-03-22 14:31 ` [PATCH 02/11] staging: rtl8723bs: moved function prototypes out of core/rtw_efuse.c Fabio Aiuto
2021-03-22 16:07 ` Greg KH
2021-03-22 18:22 ` Fabio Aiuto
2021-03-22 19:29 ` Dan Carpenter
2021-03-23 13:25 ` Fabio Aiuto
2021-03-22 14:31 ` [PATCH 03/11] staging: rtl8723bs: moved function prototype out of core/rtw_ioctl_set.c and core/rtw_mlme.c Fabio Aiuto
2021-03-22 16:09 ` Greg KH
2021-03-22 18:28 ` Fabio Aiuto
2021-03-23 7:13 ` Greg KH
2021-03-23 12:56 ` [PATCH v2 0/9] fix extern declarations checkpatch issues Fabio Aiuto
2021-03-23 12:56 ` [PATCH v2 1/9] staging: rtl8723bs: removed function prototypes in core/rtw_efuse.c Fabio Aiuto
2021-03-23 12:56 ` [PATCH v2 2/9] staging: rtl8723bs: moved function prototype out of core/rtw_ioctl_set.c and core/rtw_mlme.c Fabio Aiuto
2021-03-23 12:56 ` [PATCH v2 3/9] staging: rtl8723bs: removed function prototypes and made statics in core/rtw_recv.c Fabio Aiuto
2021-03-23 12:56 ` [PATCH v2 4/9] staging: rtl8723bs: delete extern declarations in core/rtw_wlan_util.c Fabio Aiuto
2021-03-23 12:56 ` [PATCH v2 5/9] staging: rtl8723bs: remove function prototypes in hal/odm.c Fabio Aiuto
2021-03-23 12:56 ` [PATCH v2 6/9] staging: rtl8723bs: move function prototypes out of os_dep/int_fs.c Fabio Aiuto
2021-03-23 12:56 ` [PATCH v2 7/9] staging: rtl8723bs: remove undefined function prototype in of os_dep/sdio_intf.c Fabio Aiuto
2021-03-23 12:56 ` [PATCH v2 8/9] staging: rtl8723bs: remove unnecessary extern in os_dep/sdio_intf.c Fabio Aiuto
2021-03-23 12:56 ` [PATCH v2 9/9] staging: rtl8723bs: remove blank line os_dep/os_intfs.c Fabio Aiuto
2021-03-23 13:08 ` [PATCH v2 0/9] fix extern declarations checkpatch issues Greg KH
2021-03-22 14:31 ` [PATCH 04/11] staging: rtl8723bs: moved function prototypes out of core/rtw_recv.c Fabio Aiuto
2021-03-22 16:09 ` Greg KH
2021-03-22 14:31 ` [PATCH 05/11] staging: rtl8723bs: remove argument in recv_indicatepkts_pkt_loss_cnt Fabio Aiuto
2021-03-22 16:11 ` Greg KH
2021-03-22 18:19 ` Fabio Aiuto
2021-03-22 14:31 ` [PATCH 06/11] staging: rtl8723bs: move function prototype out of core/rtw_recv.c Fabio Aiuto
2021-03-22 14:31 ` [PATCH 07/11] staging: rtl8723bs: delete extern declarations in core/rtw_wlan_util.c Fabio Aiuto
2021-03-22 14:31 ` [PATCH 08/11] staging: rtl8723bs: move function prototypes out of hal/odm.c Fabio Aiuto
2021-03-22 14:31 ` [PATCH 09/11] staging: rtl8723bs: move function prototypes out of os_dep/int_fs.c Fabio Aiuto
2021-03-22 14:31 ` [PATCH 10/11] staging: rtl8723bs: remove undefined function prototype in of os_dep/sdio_intf.c Fabio Aiuto
2021-03-22 14:31 ` [PATCH 11/11] staging: rtl8723bs: remove unnecessary extern in os_dep/sdio_intf.c Fabio Aiuto
2021-03-22 16:06 ` Greg KH
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