Most shared headers in include/linux don't need to know what the internals of a struct module are; all they care about is that it is a struct and hence they may require a pointer to one.
The advantage in this is that module.h is including a lot of stuff itself, and an otherwise empty C file that just contains module.h will result in ~750kB from CPP (compared to say 12kB from init.h) So we have approximately 50 instances of "struct module;" in the various include/linux headers already that help us keep module.h out of other headers; here we do the same for gpio. But before we do, we fix up seven instances of code that were implicitly relying on this module.h so that we don't introduce build failures into the git history. Some are tristate, so we just explicitly add module.h to them. The others are non-modular, so we just prune them off of the module based macros, so that module.h is no longer required to compile. This series built on top of linux-next for arm, arm64, i386, x86_64 without any issues (allmodconfig). --- Cc: Ajay Thomas <[email protected]> Cc: Alexandre Courbot <[email protected]> Cc: Andy Shevchenko <[email protected]> Cc: Bin Gao <[email protected]> Cc: Keguang Zhang <[email protected]> Cc: Linus Walleij <[email protected]> Cc: [email protected] Cc: [email protected] Cc: Mika Westerberg <[email protected]> Paul Gortmaker (8): gpio: palmas: fix implicit assumption module.h is present gpio: sx150x: fix implicit assumption module.h is present gpio: ts4800: fix implicit assumption module.h is present gpio: altera: fix implicit assumption module.h is present gpio: ath79: fix implicit assumption module.h is present gpio: loongson1: fix implicit assumption module.h is present gpio: wcove: fix implicit assumption module.h is present gpio: don't include module.h in shared driver header drivers/gpio/gpio-altera.c | 1 + drivers/gpio/gpio-ath79.c | 1 + drivers/gpio/gpio-loongson1.c | 1 + drivers/gpio/gpio-palmas.c | 1 - drivers/gpio/gpio-sx150x.c | 2 -- drivers/gpio/gpio-ts4800.c | 1 + drivers/gpio/gpio-wcove.c | 1 + include/linux/gpio/driver.h | 2 +- 8 files changed, 6 insertions(+), 4 deletions(-) -- 2.8.4
