linux-kernel - Re: [PATCH v2] brmcfmac: fix compile when DEBUG is defined

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Date:   Tue, 24 Nov 2020 09:46:23 +0800
From:   hby <hby2003@....com>
To:     Kalle Valo <kvalo@...eaurora.org>
Cc:     davem@...emloft.net, kuba@...nel.org,
        linux-wireless@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] brmcfmac: fix compile when DEBUG is defined

I am sorry for the HTML email, and I change the email client. The patch 
update.

 From b87d429158b4efc3f6835828f495a261e17d5af4 Mon Sep 17 00:00:00 2001
From: hby <hby2003@....com>
Date: Tue, 24 Nov 2020 09:16:24 +0800
Subject: [PATCH] brmcfmac: fix compile when DEBUG is defined

The steps:
1. add "#define DEBUG" in 
drivers/net/wireless/broadcom/brcm80211/brcmfmac/sdio.c line 61.
2. make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- O=../Out_Linux 
bcm2835_defconfig
3. make ARCH=arm CROSS_COMPILE=arm-linux-gnueabihf- O=../Out_Linux/ 
zImage modules dtbs -j8

Then, it will fail, the compile log described below:

Kernel: arch/arm/boot/zImage is ready
MODPOST Module.symvers
ERROR: modpost: "brcmf_debugfs_add_entry" 
[drivers/net/wireless/broadcom/brcm80211/brcmfmac/brcmfmac.ko] undefined!
ERROR: modpost: "brcmf_debugfs_get_devdir" 
[drivers/net/wireless/broadcom/brcm80211/brcmfmac/brcmfmac.ko] undefined!
ERROR: modpost: "__brcmf_dbg" 
[drivers/net/wireless/broadcom/brcm80211/brcmfmac/brcmfmac.ko] undefined!
scripts/Makefile.modpost:111: recipe for target 'Module.symvers' failed
make[2]: *** [Module.symvers] Error 1
make[2]: *** Deleting file 'Module.symvers'
Makefile:1390: recipe for target 'modules' failed
make[1]: *** [modules] Error 2
make[1]: Leaving directory '/home/hby/gitee/linux_origin/Out_Linux'
Makefile:185: recipe for target '__sub-make' failed
make: *** [__sub-make] Error 2

Signed-off-by: hby <hby2003@....com>
---
  drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h | 4 ++--
  1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h 
b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
index 4146faeed..c2eb3aa67 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h
@@ -60,7 +60,7 @@ void __brcmf_err(struct brcmf_bus *bus, const char 
*func, const char *fmt, ...);
                    ##__VA_ARGS__);            \
      } while (0)

-#if defined(DEBUG) || defined(CONFIG_BRCM_TRACING)
+#if defined(CONFIG_BRCM_TRACING) || defined(CONFIG_BRCMDBG)

  /* For debug/tracing purposes treat info messages as errors */
  #define brcmf_info brcmf_err
@@ -114,7 +114,7 @@ extern int brcmf_msg_level;

  struct brcmf_bus;
  struct brcmf_pub;
-#ifdef DEBUG
+#if defined(CONFIG_BRCMDBG)
  struct dentry *brcmf_debugfs_get_devdir(struct brcmf_pub *drvr);
  void brcmf_debugfs_add_entry(struct brcmf_pub *drvr, const char *fn,
                   int (*read_fn)(struct seq_file *seq, void *data));
-- 
2.17.1

在 2020/11/23 23:59, Kalle Valo 写道:
> hby <hby2003@....com> writes:
>
>> enable the DEBUG in source code, and it will compile fail,
>> modify the DEBUG macro, to adapt the compile
>>
>> Signed-off-by: hby <hby2003@....com>
>> ---
>>   drivers/net/wireless/broadcom/brcm80211/brcmfmac/debug.h | 4 ++--
>>   1 file changed, 2 insertions(+), 2 deletions(-)
> This has nothing to do with Raspberry Pi, so the title should be:
>
> brmcfmac: fix compile when DEBUG is defined
>