From 5a0e3ad6af8660be21ca98a971cd00f331318c05 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 24 Mar 2010 17:04:11 +0900 Subject: include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn --- drivers/isdn/hardware/avm/b1.c | 1 + drivers/isdn/hardware/avm/b1dma.c | 1 + drivers/isdn/hardware/avm/c4.c | 1 + drivers/isdn/hardware/avm/t1isa.c | 1 + drivers/isdn/hardware/eicon/capimain.c | 1 + drivers/isdn/hardware/mISDN/avmfritz.c | 1 + drivers/isdn/hardware/mISDN/hfcmulti.c | 1 + drivers/isdn/hardware/mISDN/hfcpci.c | 1 + drivers/isdn/hardware/mISDN/hfcsusb.c | 1 + drivers/isdn/hardware/mISDN/mISDNinfineon.c | 1 + drivers/isdn/hardware/mISDN/mISDNipac.c | 1 + drivers/isdn/hardware/mISDN/mISDNisar.c | 1 + drivers/isdn/hardware/mISDN/netjet.c | 1 + drivers/isdn/hardware/mISDN/speedfax.c | 1 + drivers/isdn/hardware/mISDN/w6692.c | 1 + 15 files changed, 15 insertions(+) (limited to 'drivers/isdn/hardware') diff --git a/drivers/isdn/hardware/avm/b1.c b/drivers/isdn/hardware/avm/b1.c index c38fa0f4c72..2a57da590d7 100644 --- a/drivers/isdn/hardware/avm/b1.c +++ b/drivers/isdn/hardware/avm/b1.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/isdn/hardware/avm/b1dma.c b/drivers/isdn/hardware/avm/b1dma.c index 124550d0dbf..9c8d7aa053c 100644 --- a/drivers/isdn/hardware/avm/b1dma.c +++ b/drivers/isdn/hardware/avm/b1dma.c @@ -20,6 +20,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/isdn/hardware/avm/c4.c b/drivers/isdn/hardware/avm/c4.c index de6e6b31181..7715d3242ec 100644 --- a/drivers/isdn/hardware/avm/c4.c +++ b/drivers/isdn/hardware/avm/c4.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/isdn/hardware/avm/t1isa.c b/drivers/isdn/hardware/avm/t1isa.c index baeeb3c2a3e..08216b14be1 100644 --- a/drivers/isdn/hardware/avm/t1isa.c +++ b/drivers/isdn/hardware/avm/t1isa.c @@ -21,6 +21,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/isdn/hardware/eicon/capimain.c b/drivers/isdn/hardware/eicon/capimain.c index 0f073cd7376..97a20964cfc 100644 --- a/drivers/isdn/hardware/eicon/capimain.c +++ b/drivers/isdn/hardware/eicon/capimain.c @@ -11,6 +11,7 @@ */ #include +#include #include #include #include diff --git a/drivers/isdn/hardware/mISDN/avmfritz.c b/drivers/isdn/hardware/mISDN/avmfritz.c index 81ac541d40d..d4215369bb5 100644 --- a/drivers/isdn/hardware/mISDN/avmfritz.c +++ b/drivers/isdn/hardware/mISDN/avmfritz.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include "ipac.h" diff --git a/drivers/isdn/hardware/mISDN/hfcmulti.c b/drivers/isdn/hardware/mISDN/hfcmulti.c index 8affba3e569..75e71b5d921 100644 --- a/drivers/isdn/hardware/mISDN/hfcmulti.c +++ b/drivers/isdn/hardware/mISDN/hfcmulti.c @@ -153,6 +153,7 @@ #define HFC_MULTI_VERSION "2.03" #include +#include #include #include #include diff --git a/drivers/isdn/hardware/mISDN/hfcpci.c b/drivers/isdn/hardware/mISDN/hfcpci.c index 70e6b0e0112..5940a2c1207 100644 --- a/drivers/isdn/hardware/mISDN/hfcpci.c +++ b/drivers/isdn/hardware/mISDN/hfcpci.c @@ -48,6 +48,7 @@ #include #include #include +#include #include "hfc_pci.h" diff --git a/drivers/isdn/hardware/mISDN/hfcsusb.c b/drivers/isdn/hardware/mISDN/hfcsusb.c index a64bb6c67ba..b3b7e2879ba 100644 --- a/drivers/isdn/hardware/mISDN/hfcsusb.c +++ b/drivers/isdn/hardware/mISDN/hfcsusb.c @@ -33,6 +33,7 @@ #include #include #include +#include #include "hfcsusb.h" static const char *hfcsusb_rev = "Revision: 0.3.3 (socket), 2008-11-05"; diff --git a/drivers/isdn/hardware/mISDN/mISDNinfineon.c b/drivers/isdn/hardware/mISDN/mISDNinfineon.c index 36c6c616a65..f5b3d2b26a0 100644 --- a/drivers/isdn/hardware/mISDN/mISDNinfineon.c +++ b/drivers/isdn/hardware/mISDN/mISDNinfineon.c @@ -42,6 +42,7 @@ #include #include #include +#include #include "ipac.h" #define INFINEON_REV "1.0" diff --git a/drivers/isdn/hardware/mISDN/mISDNipac.c b/drivers/isdn/hardware/mISDN/mISDNipac.c index 613ba043537..64ecc6f5ffa 100644 --- a/drivers/isdn/hardware/mISDN/mISDNipac.c +++ b/drivers/isdn/hardware/mISDN/mISDNipac.c @@ -20,6 +20,7 @@ * */ +#include #include #include #include "ipac.h" diff --git a/drivers/isdn/hardware/mISDN/mISDNisar.c b/drivers/isdn/hardware/mISDN/mISDNisar.c index f0bc6fa9580..38eb31439a7 100644 --- a/drivers/isdn/hardware/mISDN/mISDNisar.c +++ b/drivers/isdn/hardware/mISDN/mISDNisar.c @@ -25,6 +25,7 @@ */ /* #define DEBUG */ +#include #include #include #include diff --git a/drivers/isdn/hardware/mISDN/netjet.c b/drivers/isdn/hardware/mISDN/netjet.c index 6c1b164937a..0a3553df065 100644 --- a/drivers/isdn/hardware/mISDN/netjet.c +++ b/drivers/isdn/hardware/mISDN/netjet.c @@ -24,6 +24,7 @@ #include #include #include +#include #include "ipac.h" #include "iohelper.h" #include "netjet.h" diff --git a/drivers/isdn/hardware/mISDN/speedfax.c b/drivers/isdn/hardware/mISDN/speedfax.c index 7726afdbb40..d097a4e40e2 100644 --- a/drivers/isdn/hardware/mISDN/speedfax.c +++ b/drivers/isdn/hardware/mISDN/speedfax.c @@ -23,6 +23,7 @@ */ #include +#include #include #include #include diff --git a/drivers/isdn/hardware/mISDN/w6692.c b/drivers/isdn/hardware/mISDN/w6692.c index 2952a58c7a6..31f9d71fb22 100644 --- a/drivers/isdn/hardware/mISDN/w6692.c +++ b/drivers/isdn/hardware/mISDN/w6692.c @@ -25,6 +25,7 @@ #include #include #include +#include #include "w6692.h" #define W6692_REV "2.0" -- cgit v1.2.3-70-g09d2