2008/3/14, Vijay Chauhan <kernel.vijay@xxxxxxxxx>: > Hi List, > > I am a newbie and learning how to write a kernel module. > I was reading about __init qualifier, in the init.h file it is mentioned that: > > I did not understand the purpose of __initdata qualifier? The tag __initdata is for data used only during initialization (the data is put in a special ELF section that is discarded after initialization). > 1. Will the variable be free up after the initialization? Then it is > of no use to write the code like: > static int init_variable __initdata = 0; > Why I will initialize a variable and then free it? For example to set variables while modprobing the kernel module: static __initdata char *prm = "userval"; ... module_param(prm, charp, S_IRUGO); Davide -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
