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vt_buffer.h: get rid of dead code in default scr_...() instances

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Only 4 architectures define VT_BUF_HAVE_RW (alpha, mips, powerpc, sparc)
and all of them define VT_BUF_HAVE_MEM{SET,CPY,MOVE}W.  In other
words, the code under #ifdef VT_BUF_HAVE_RW in default scr_mem...w()
instances won't be compiled anyway.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
This commit is contained in:
Al Viro 2024-11-06 06:10:19 +00:00 committed by Arnd Bergmann
parent c0dc92144b
commit fb56007c9b
1 changed files with 0 additions and 24 deletions
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24
include/linux/vt_buffer.h
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@ -28,45 +28,21 @@
#ifndef VT_BUF_HAVE_MEMSETW #ifndef VT_BUF_HAVE_MEMSETW
static inline void scr_memsetw(u16 *s, u16 c, unsigned int count) static inline void scr_memsetw(u16 *s, u16 c, unsigned int count)
{ {
#ifdef VT_BUF_HAVE_RW
count /= 2;
while (count--)
scr_writew(c, s++);
#else
memset16(s, c, count / 2); memset16(s, c, count / 2);
#endif
} }
#endif #endif
#ifndef VT_BUF_HAVE_MEMCPYW #ifndef VT_BUF_HAVE_MEMCPYW
static inline void scr_memcpyw(u16 *d, const u16 *s, unsigned int count) static inline void scr_memcpyw(u16 *d, const u16 *s, unsigned int count)
{ {
#ifdef VT_BUF_HAVE_RW
count /= 2;
while (count--)
scr_writew(scr_readw(s++), d++);
#else
memcpy(d, s, count); memcpy(d, s, count);
#endif
} }
#endif #endif
#ifndef VT_BUF_HAVE_MEMMOVEW #ifndef VT_BUF_HAVE_MEMMOVEW
static inline void scr_memmovew(u16 *d, const u16 *s, unsigned int count) static inline void scr_memmovew(u16 *d, const u16 *s, unsigned int count)
{ {
#ifdef VT_BUF_HAVE_RW
if (d < s)
scr_memcpyw(d, s, count);
else {
count /= 2;
d += count;
s += count;
while (count--)
scr_writew(scr_readw(--s), --d);
}
#else
memmove(d, s, count); memmove(d, s, count);
#endif
} }
#endif #endif