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| author |  Jason Gunthorpe <jgg@nvidia.com>
| 2024-04-11 13:46:14 -0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com>
| 2024-04-22 17:11:19 -0300 |
| commit | 20516d6e51dd9994afda8d556507cfbe7853384b (patch) | |
| tree | 15e4bdf535cbe812c0c232481c3a5cefbb529c4b /arch/x86/lib/Makefile | |
| parent | RDMA/rxe: Let destroy qp succeed with stuck packet (diff) | |
| download | linux-20516d6e51dd9994afda8d556507cfbe7853384b.tar.gz linux-20516d6e51dd9994afda8d556507cfbe7853384b.tar.bz2 linux-20516d6e51dd9994afda8d556507cfbe7853384b.zip | |
x86: Stop using weak symbols for __iowrite32_copy()
Start switching iomap_copy routines over to use #define and arch provided
inline/macro functions instead of weak symbols.
Inline functions allow more compiler optimization and this is often a
driver hot path.
x86 has the only weak implementation for __iowrite32_copy(), so replace it
with a static inline containing the same single instruction inline
assembly. The compiler will generate the "mov edx,ecx" in a more optimal
way.
Remove iomap_copy_64.S
Link: https://lore.kernel.org/r/1-v3-1893cd8b9369+1925-mlx5_arm_wc_jgg@nvidia.com
Acked-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'arch/x86/lib/Makefile')
| -rw-r--r-- | arch/x86/lib/Makefile | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/x86/lib/Makefile b/arch/x86/lib/Makefile index 6da73513f026..98583a9dbab3 100644 --- a/arch/x86/lib/Makefile +++ b/arch/x86/lib/Makefile @@ -53,7 +53,6 @@ ifneq ($(CONFIG_X86_CMPXCHG64),y) lib-y += atomic64_386_32.o endif else - obj-y += iomap_copy_64.o ifneq ($(CONFIG_GENERIC_CSUM),y) lib-y += csum-partial_64.o csum-copy_64.o csum-wrappers_64.o endif |