This is based on previous commit ("microblaze: Use simple memset
implementation from lib/string.c") where generic memset implementation is
used when OPT_LIB_FUNCTION is not defined. The same change can be done for
memset/memcpy implementation where doesn't make sense to have generic
implementation in architecture code.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/1f5cfc026a8a458f3e3134ab80f65bd4ac7e3e8e.1645797329.git.michal.simek@xilinx.com
Fix "fallthrough" warnings in microblaze memcpy/memset/memmove
library functions.
CC arch/microblaze/lib/memcpy.o
../arch/microblaze/lib/memcpy.c: In function 'memcpy':
../arch/microblaze/lib/memcpy.c:70:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
70 | --c;
../arch/microblaze/lib/memcpy.c:71:3: note: here
71 | case 2:
../arch/microblaze/lib/memcpy.c:73:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
73 | --c;
../arch/microblaze/lib/memcpy.c:74:3: note: here
74 | case 3:
../arch/microblaze/lib/memcpy.c:178:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
178 | *dst++ = *src++;
../arch/microblaze/lib/memcpy.c:179:2: note: here
179 | case 2:
../arch/microblaze/lib/memcpy.c:180:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
180 | *dst++ = *src++;
../arch/microblaze/lib/memcpy.c:181:2: note: here
181 | case 1:
CC arch/microblaze/lib/memset.o
../arch/microblaze/lib/memset.c: In function 'memset':
../arch/microblaze/lib/memset.c:71:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
71 | --n;
../arch/microblaze/lib/memset.c:72:3: note: here
72 | case 2:
../arch/microblaze/lib/memset.c:74:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
74 | --n;
../arch/microblaze/lib/memset.c:75:3: note: here
75 | case 3:
CC arch/microblaze/lib/memmove.o
../arch/microblaze/lib/memmove.c: In function 'memmove':
../arch/microblaze/lib/memmove.c:92:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
92 | --c;
../arch/microblaze/lib/memmove.c:93:3: note: here
93 | case 2:
../arch/microblaze/lib/memmove.c:95:4: warning: this statement may fall through [-Wimplicit-fallthrough=]
95 | --c;
../arch/microblaze/lib/memmove.c:96:3: note: here
96 | case 1:
../arch/microblaze/lib/memmove.c:203:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
203 | *--dst = *--src;
../arch/microblaze/lib/memmove.c:204:2: note: here
204 | case 3:
../arch/microblaze/lib/memmove.c:205:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
205 | *--dst = *--src;
../arch/microblaze/lib/memmove.c:206:2: note: here
206 | case 2:
../arch/microblaze/lib/memmove.c:207:10: warning: this statement may fall through [-Wimplicit-fallthrough=]
207 | *--dst = *--src;
../arch/microblaze/lib/memmove.c:208:2: note: here
208 | case 1:
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Michal Simek <monstr@monstr.eu>
Link: https://lore.kernel.org/r/20210421022041.10689-1-rdunlap@infradead.org
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Based on the patch:
"lib: reduce the use of module.h wherever possible"
(sha1: 8bc3bcc93a)
fix all microblaze files which are not modules.
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Optimized C library functions can rapidly speedup the kernel.
memset doesn't need to be optimized because there is no difference
in behavior on little/big endian cpu.
Signed-off-by: Michal Simek <monstr@monstr.eu>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Stephen Neuendorffer <stephen.neuendorffer@xilinx.com>
Acked-by: John Linn <john.linn@xilinx.com>
Acked-by: John Williams <john.williams@petalogix.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
Julia Lawall
Michal Simek
Randy Dunlap
Michal Simek
Lucas De Marchi
Joe Perches
André Goddard Rosa