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| author | Sergey Shtylyov <s.shtylyov@omp.ru> | 2022-06-14 22:51:47 +0300 |
|---|---|---|
| committer | Damien Le Moal <damien.lemoal@opensource.wdc.com> | 2022-06-17 16:35:02 +0900 |
| commit | f0a6d77b351c18c122fc1638ac9e58f5e0346f64 (patch) | |
| tree | 1e232bf4b52162f14bd05ab62b6c2651d03ce4bc /crypto/des_generic.c | |
| parent | 5eb8deb4af56b120c152066ff43a0867267b264b (diff) | |
ata: make transfer mode masks *unsigned int*
The packed transfer mode masks and also the {pio|mwdma|udma}_mask fields
of *struct*s ata_device and ata_port_info are declared as *unsigned long*
(which is a 64-bit type on 64-bit architectures) but actually the packed
masks occupy only 20 bits (7 PIO modes, 5 MWDMA modes, and 8 UDMA modes)
and the PIO/MWDMA/UDMA masks easily fit into just 8 bits each, so we can
safely use (always 32-bit) *unsigned int* variables instead. This saves
745 bytes of object code in libata-core.o alone, not to mention LLDDs...
Signed-off-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Diffstat (limited to 'crypto/des_generic.c')
0 files changed, 0 insertions, 0 deletions