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Linux Error Dereferencing Pointer To Incomplete Type

Anyone please help me in finding what is wrong? $ gcc -c recv_v4.c recv_v4.c: In function `recv_v4': recv_v4.c:42: error: dereferencing pointer to incomplete type recv_v4.c:42: error: `ICMP_TIMXCEED' undeclared (first use in You need to make sure that the whole definition of struct task_struct is visible when initschedule is compiled. So basically, I am wondering why am I getting this error? How to use breakpoints for debugging Is the equation pH+pOH=14 still valid at a different temperature? this contact form

Thank you. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed Does using documentation as a developer make me look unprofessional? Such as calling a certain function before you use a pointer.

You probably forgot to #include whichever header defines the struct.I am still at a loss trying to fix this. Should I defragment my SSD? But as it only MIGHT work, never just assign a pointer to something that is not stored for the lifetime of the scope you need it in.

Maybe, just maybe, I can learn something new. Here is one guess. Code: #include Lesson today kids, REMEMBER TO CHECK YOUR INCLUDES. This is used to hide the implementation details and only provide access to the elements via the interface API provided by the header.

Now I work with the comment before the backport and it works just fine. Adv Reply April 8th, 2010 #6 Akalic View Profile View Forum Posts Private Message First Cup of Ubuntu Join Date Apr 2009 Beans 6 Re: error: dereferencing pointer to incomplete Perhaps you need to include fs_struct.h so you can see the contents of struct fs_struct. http://stackoverflow.com/questions/2693393/strange-errordereferencing-pointer-to-incomplete-type These Aren't Roasted!

more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed So for initschedule, it's an incomplete type, it can only pass pointers to it around but cannot actually dereference those pointers. I suggest you break apart your if statement into smaller pieces and see if you can deduce the problem. Topics: Active | Unanswered Index ┬╗Programming & Scripting ┬╗[SOLVED]"dereferencing pointer to incomplete type" GCC Pages: 1 #1 2012-05-17 02:41:13 Jordanlw Member Registered: 2010-07-27 Posts: 44 [SOLVED]"dereferencing pointer to incomplete type" GCC

Note that forward declarations are usually used in case where there is a Circular Dependency of classes. https://ubuntuforums.org/showthread.php?t=1449331 Although it ~could~ happen, given that the compiler writer places his variables on after the other in memory but if it did... Is it worth sending a manned mission to a black hole? pan64 View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by pan64 04-27-2012, 06:53 AM #7 Himalay LQ Newbie Registered: Apr 2012 Posts:

pan64 View Public Profile View LQ Blog View Review Entries View HCL Entries Find More Posts by pan64 04-26-2012, 05:40 AM #3 Himalay LQ Newbie Registered: Apr 2012 Posts: weblink Not the answer you're looking for? Adv Reply April 9th, 2010 #7 gnometorule View Profile View Forum Posts Private Message Frothy Coffee! How can a Mann-Whitney U-Test return a p = 1.00 for unequal means?

However, running make is kind of chatty. Was This Post Helpful? 1 Back to top MultiQuote Quote + Reply #7 Freewaymad New D.I.C Head Reputation: 1 Posts: 24 Joined: 06-September 14 Re: Help "error: dereferencing pointer to The time now is 02:40 AM. navigate here I am looking into the ic2_client and sensor declarations.

Offline #5 2012-05-17 14:38:01 drcouzelis Member From: Connecticut, USA Registered: 2009-11-09 Posts: 3,570 Website Re: [SOLVED]"dereferencing pointer to incomplete type" GCC This is getting confusing. Pomegranate Chicken Help! I will have to check out the link.

Search this Thread 04-26-2012, 01:22 AM #1 Himalay LQ Newbie Registered: Apr 2012 Posts: 8 Rep: error: dereferencing pointer to incomplete type in C I am getting following compilation

Join Date Mar 2008 Beans 136 DistroUbuntu 9.10 Karmic Koala Re: error: dereferencing pointer to incomplete type have you tried this: PHP Code: serv_addr.

The syntax tells you a lot about what you need to do. All Rights Reserved. Find all posts by quirkasaurus

#5 04-16-2009 katwala Registered User Join Date: Apr 2009 Last Activity: 19 October 2009, 9:31 AM EDT Posts: 7 Thanks: his comment is here The struct gt2005camera_platform_data is not defined in the file.

The whole code: #include /* Needed by all modules */ #include /* Needed for KERN_INFO */ #include #include #include #include MODULE_LICENSE("GPL"); int init_module(void) { printk("%d\n", I forgot how this is usally implemented, but I would assume either on the stack or in the free store. asked 1 year ago viewed 545 times active 1 year ago Blog How Do Software Developers in New York, San Francisco, London and Bangalore… Related 38dereferencing pointer to incomplete type0dereferencing pointer Can anyone please give me suggestion?

johshoff commented Nov 7, 2015 @giltene I've confirmed that it now compiles on Ubuntu 14.04.3 LTS. http://en.wikipedia.org/wiki/Opaque_pointer share|improve this answer answered Apr 22 '10 at 18:36 James Morris 3,27712143 add a comment| up vote 2 down vote http://lxr.linux.no/#linux+v2.6.33/include/linux/fs_struct.h#L11 -- this should work; current should be a pointer