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Subject: Re: [PATCH] staging: gdm724x: gdm_tty: replaced macro with a function
To:     Greg KH <gregkh@linuxfoundation.org>
References: <20200901161846.111486-1-antoni.przybylik@wp.pl>
 <20200901175024.GA1509755@kroah.com>
From:   "antoni.przybylik@wp.pl" <antoni.przybylik@wp.pl>
Cc:     linux-kernel@vger.kernel.org, devel@driverdev.osuosl.org
Message-ID: <4cf3447d-0dfa-8072-d168-698400d177c7@wp.pl>
Date:   Tue, 1 Sep 2020 22:31:37 +0200
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On 01.09.2020 19:50, Greg KH wrote:

> On Tue, Sep 01, 2020 at 06:18:46PM +0200, Antoni Przybylik wrote:
>> This approach is more elegant and prevents some problems related to
>> macros such as operator precedence in expanded expression.
>>
>> Signed-off-by: Antoni Przybylik <antoni.przybylik@wp.pl>
>> ---
>>   drivers/staging/gdm724x/gdm_tty.c | 15 +++++++++------
>>   1 file changed, 9 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/staging/gdm724x/gdm_tty.c b/drivers/staging/gdm724x/gdm_tty.c
>> index 6e813693a766..a7db0672e81d 100644
>> --- a/drivers/staging/gdm724x/gdm_tty.c
>> +++ b/drivers/staging/gdm724x/gdm_tty.c
>> @@ -27,8 +27,6 @@
>>   
>>   #define MUX_TX_MAX_SIZE 2048
>>   
>> -#define GDM_TTY_READY(gdm) (gdm && gdm->tty_dev && gdm->port.count)
>> -
>>   static struct tty_driver *gdm_driver[TTY_MAX_COUNT];
>>   static struct gdm *gdm_table[TTY_MAX_COUNT][GDM_TTY_MINOR];
>>   static DEFINE_MUTEX(gdm_table_lock);
>> @@ -36,6 +34,11 @@ static DEFINE_MUTEX(gdm_table_lock);
>>   static const char *DRIVER_STRING[TTY_MAX_COUNT] = {"GCTATC", "GCTDM"};
>>   static char *DEVICE_STRING[TTY_MAX_COUNT] = {"GCT-ATC", "GCT-DM"};
>>   
>> +static int gdm_tty_ready(gdm *gdm)
>> +{
>> +	return (gdm && gdm->tty_dev && gdm->port.count);
>> +}
> You obviously did not even build this patch, which is a bit rude, don't
> you think?
>
> :(

I'm stupid. I misconfigured the kernel. I fixed this bug and sent a new 
patch.
Linux configuration script is horrible...

Antoni Przybylik