gcc 9 provides a way to override the otherwise crude heuristic that gcc uses to estimate the size of the code represented by an asm() statement. From the gcc docs
If you use 'asm inline' instead of just 'asm', then for inlining purposes the size of the asm is taken as the minimum size, ignoring how many instructions GCC thinks it is. For compatibility with older compilers, we obviously want a #if new enough #define asm_inline asm inline #else #define asm_inline asm #endif But since we #define the identifier inline to attach some attributes, we have to use the alternate spelling __inline__ of that keyword. Unfortunately, we also currently #define that one (to inline), so we first have to get rid of all (mis)uses of __inline__. Hence the huge diffstat. I think patch 1 should be regenerated and applied just before -rc1. There are a few remaining users of __inline__, in particular in uapi headers, which I'm not sure what to do about (kernel-side users of those will get slightly different semantics since we no longer automatically attach the __attribute__((__gnu_inline__)) etc.). So RFC. The two x86 changes cause smaller code gen differences than I'd expect, but I think we do want the asm_inline thing available sooner or later, so this is just to get the ball rolling. Rasmus Villemoes (5): treewide: replace __inline__ by inline compiler_types.h: don't #define __inline__ compiler-gcc.h: add asm_inline definition x86: alternative.h: use asm_inline for all alternative variants x86: bug.h: use asm_inline in _BUG_FLAGS definitions arch/alpha/include/asm/atomic.h | 12 +++--- arch/alpha/include/asm/bitops.h | 6 +-- arch/alpha/include/asm/dma.h | 22 +++++----- arch/alpha/include/asm/floppy.h | 2 +- arch/alpha/include/asm/irq.h | 2 +- arch/alpha/include/asm/local.h | 4 +- arch/alpha/include/asm/smp.h | 2 +- .../arm/mach-iop32x/include/mach/uncompress.h | 2 +- .../arm/mach-iop33x/include/mach/uncompress.h | 2 +- .../arm/mach-ixp4xx/include/mach/uncompress.h | 2 +- arch/ia64/hp/common/sba_iommu.c | 2 +- arch/ia64/hp/sim/simeth.c | 2 +- arch/ia64/include/asm/atomic.h | 8 ++-- arch/ia64/include/asm/bitops.h | 34 ++++++++-------- arch/ia64/include/asm/delay.h | 14 +++---- arch/ia64/include/asm/irq.h | 2 +- arch/ia64/include/asm/page.h | 2 +- arch/ia64/include/asm/sn/leds.h | 2 +- arch/ia64/include/asm/uaccess.h | 4 +- arch/ia64/oprofile/backtrace.c | 4 +- arch/m68k/include/asm/blinken.h | 2 +- arch/m68k/include/asm/checksum.h | 2 +- arch/m68k/include/asm/dma.h | 32 +++++++-------- arch/m68k/include/asm/floppy.h | 8 ++-- arch/m68k/include/asm/nettel.h | 8 ++-- arch/m68k/mac/iop.c | 14 +++---- arch/mips/include/asm/atomic.h | 16 ++++---- arch/mips/include/asm/checksum.h | 2 +- arch/mips/include/asm/dma.h | 20 +++++----- arch/mips/include/asm/jazz.h | 2 +- arch/mips/include/asm/local.h | 4 +- arch/mips/include/asm/string.h | 8 ++-- arch/mips/kernel/binfmt_elfn32.c | 2 +- arch/nds32/include/asm/swab.h | 4 +- arch/parisc/include/asm/atomic.h | 20 +++++----- arch/parisc/include/asm/bitops.h | 18 ++++----- arch/parisc/include/asm/checksum.h | 4 +- arch/parisc/include/asm/compat.h | 2 +- arch/parisc/include/asm/delay.h | 2 +- arch/parisc/include/asm/dma.h | 20 +++++----- arch/parisc/include/asm/ide.h | 8 ++-- arch/parisc/include/asm/irq.h | 2 +- arch/parisc/include/asm/spinlock.h | 12 +++--- arch/powerpc/include/asm/atomic.h | 40 +++++++++---------- arch/powerpc/include/asm/bitops.h | 28 ++++++------- arch/powerpc/include/asm/dma.h | 20 +++++----- arch/powerpc/include/asm/edac.h | 2 +- arch/powerpc/include/asm/irq.h | 2 +- arch/powerpc/include/asm/local.h | 14 +++---- arch/sh/include/asm/pgtable_64.h | 2 +- arch/sh/include/asm/processor_32.h | 4 +- arch/sh/include/cpu-sh3/cpu/dac.h | 6 +-- arch/x86/include/asm/alternative.h | 14 +++---- arch/x86/include/asm/bug.h | 4 +- arch/x86/um/asm/checksum.h | 4 +- arch/x86/um/asm/checksum_32.h | 4 +- arch/xtensa/include/asm/checksum.h | 14 +++---- arch/xtensa/include/asm/cmpxchg.h | 4 +- arch/xtensa/include/asm/irq.h | 2 +- block/partitions/amiga.c | 2 +- drivers/atm/he.c | 6 +-- drivers/atm/idt77252.c | 6 +-- drivers/gpu/drm/mga/mga_drv.h | 2 +- drivers/gpu/drm/mga/mga_state.c | 14 +++---- drivers/gpu/drm/r128/r128_drv.h | 2 +- drivers/gpu/drm/r128/r128_state.c | 14 +++---- drivers/gpu/drm/via/via_irq.c | 2 +- drivers/gpu/drm/via/via_verifier.c | 30 +++++++------- drivers/media/pci/ivtv/ivtv-ioctl.c | 2 +- drivers/net/ethernet/sun/sungem.c | 8 ++-- drivers/net/ethernet/sun/sunhme.c | 6 +-- drivers/net/hamradio/baycom_ser_fdx.c | 2 +- drivers/net/wan/lapbether.c | 2 +- drivers/net/wan/n2.c | 4 +- drivers/parisc/led.c | 4 +- drivers/parisc/sba_iommu.c | 2 +- drivers/parport/parport_gsc.h | 4 +- drivers/scsi/lpfc/lpfc_scsi.c | 2 +- drivers/scsi/pcmcia/sym53c500_cs.c | 4 +- drivers/scsi/qla2xxx/qla_inline.h | 2 +- drivers/scsi/qla2xxx/qla_os.c | 2 +- drivers/tty/amiserial.c | 2 +- drivers/tty/serial/ip22zilog.c | 2 +- drivers/tty/serial/sunsab.c | 4 +- drivers/tty/serial/sunzilog.c | 2 +- drivers/video/fbdev/core/fbcon.c | 20 +++++----- drivers/video/fbdev/ffb.c | 2 +- drivers/video/fbdev/intelfb/intelfbdrv.c | 8 ++-- drivers/video/fbdev/intelfb/intelfbhw.c | 2 +- drivers/w1/masters/matrox_w1.c | 4 +- fs/coda/coda_linux.h | 6 +-- fs/freevxfs/vxfs_inode.c | 2 +- fs/nfsd/nfsfh.h | 4 +- include/acpi/platform/acgcc.h | 2 +- include/asm-generic/ide_iops.h | 8 ++-- include/linux/atalk.h | 4 +- include/linux/compiler-gcc.h | 4 ++ include/linux/compiler_types.h | 5 ++- include/linux/hdlc.h | 4 +- include/linux/inetdevice.h | 6 +-- include/linux/parport.h | 4 +- include/linux/parport_pc.h | 22 +++++----- include/net/ax25.h | 2 +- include/net/checksum.h | 2 +- include/net/dn_nsp.h | 16 ++++---- include/net/ip.h | 2 +- include/net/ip6_checksum.h | 2 +- include/net/ipx.h | 10 ++--- include/net/llc_c_ev.h | 4 +- include/net/llc_conn.h | 4 +- include/net/llc_s_ev.h | 2 +- include/net/netrom.h | 8 ++-- include/net/scm.h | 14 +++---- include/net/udplite.h | 2 +- include/net/x25.h | 8 ++-- include/net/xfrm.h | 18 ++++----- include/video/newport.h | 12 +++--- net/appletalk/atalk_proc.c | 4 +- net/appletalk/ddp.c | 2 +- net/core/neighbour.c | 2 +- net/core/scm.c | 2 +- net/decnet/dn_nsp_in.c | 2 +- net/decnet/dn_nsp_out.c | 2 +- net/decnet/dn_route.c | 2 +- net/decnet/dn_table.c | 4 +- net/ipv6/af_inet6.c | 2 +- net/ipv6/icmp.c | 4 +- net/ipv6/udp.c | 2 +- net/lapb/lapb_iface.c | 4 +- net/llc/llc_input.c | 2 +- sound/sparc/amd7930.c | 6 +-- 131 files changed, 449 insertions(+), 442 deletions(-) -- 2.20.1
