diff --git a/[refs] b/[refs] index a5ac57539730..a1c8684f7eca 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: c9bfff9c98671ad50e4abbfe1ab606a9957f7539 +refs/heads/master: 5ea081785dde6041eb2f4acc2369abbb9099a981 diff --git a/trunk/include/linux/init.h b/trunk/include/linux/init.h index de994304e0bb..577671c55153 100644 --- a/trunk/include/linux/init.h +++ b/trunk/include/linux/init.h @@ -46,16 +46,23 @@ #define __exitdata __section(.exit.data) #define __exit_call __used __section(.exitcall.exit) -/* modpost check for section mismatches during the kernel build. +/* + * modpost check for section mismatches during the kernel build. * A section mismatch happens when there are references from a * code or data section to an init section (both code or data). * The init sections are (for most archs) discarded by the kernel * when early init has completed so all such references are potential bugs. * For exit sections the same issue exists. + * * The following markers are used for the cases where the reference to * the *init / *exit section (code or data) is valid and will teach - * modpost not to issue a warning. - * The markers follow same syntax rules as __init / __initdata. */ + * modpost not to issue a warning. Intended semantics is that a code or + * data tagged __ref* can reference code or data from init section without + * producing a warning (of course, no warning does not mean code is + * correct, so optimally document why the __ref is needed and why it's OK). + * + * The markers follow same syntax rules as __init / __initdata. + */ #define __ref __section(.ref.text) noinline #define __refdata __section(.ref.data) #define __refconst __section(.ref.rodata)