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Commit 6432200a authored by Michael Ellerman's avatar Michael Ellerman Committed by Benjamin Herrenschmidt
Browse files

powerpc/udbg: Remove unused udbg_read() 



The last user of udbg_read() was removed in 2005, in commit fca5dcd4
"Simplify and clean up the xmon terminal I/O".

Given we haven't needed it for 7 years we can probably drop it.

Signed-off-by: default avatarMichael Ellerman <michael@ellerman.id.au>
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
parent f7fb862b

arch/powerpc/include/asm/udbg.h

+0 −1
Original line number Diff line number Diff line
@@ -21,7 +21,6 @@ extern int (*udbg_getc_poll)(void); 


extern void udbg_puts(const char *s);

extern int udbg_write(const char *s, int n);

extern int udbg_read(char *buf, int buflen);



extern void register_early_udbg_console(void);

extern void udbg_printf(const char *fmt, ...)

arch/powerpc/kernel/udbg.c

+0 −23
Original line number Diff line number Diff line
@@ -122,29 +122,6 @@ int udbg_write(const char *s, int n) 
	return n - remain;

}



int udbg_read(char *buf, int buflen)

{

	char *p = buf;

	int i, c;



	if (!udbg_getc)

		return 0;



	for (i = 0; i < buflen; ++i) {

		do {

			c = udbg_getc();

			if (c == -1 && i == 0)

				return -1;



		} while (c == 0x11 || c == 0x13);

		if (c == 0 || c == -1)

			break;

		*p++ = c;

	}



	return i;

}



#define UDBG_BUFSIZE 256

void udbg_printf(const char *fmt, ...)

{