diff options
| 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 /lib/memory-notifier-error-inject.c | |
| parent | 1a633bdc8fd9e9e4a9f9a668ae122edfc5aacc86 (diff) | |
| download | lwn-20516d6e51dd9994afda8d556507cfbe7853384b.tar.gz lwn-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 'lib/memory-notifier-error-inject.c')
0 files changed, 0 insertions, 0 deletions