151 	struct putchar_arg *pca;  in putchar()  local
153 	pca = (struct putchar_arg *)arg;  in putchar()
155 	if (pca->buf == NULL) {  in putchar()
162 		pca->buf[pca->n_next++] = c;  in putchar()
163 		if ((pca->size == pca->n_next) || (c = '\0')) {  in putchar()
165 			xen_emergency_print(pca->buf, pca->n_next);  in putchar()
166 			pca->n_next = 0;  in putchar()
175 	struct putchar_arg pca;  in xc_printf()  local
179 	pca.buf = buf;  in xc_printf()
180 	pca.size = sizeof(buf);  in xc_printf()
181 	pca.n_next = 0;  in xc_printf()
183 	pca.buf = NULL;  in xc_printf()
184 	pca.size = 0;  in xc_printf()
188 	kvprintf(fmt, putchar, &pca, 10, ap);  in xc_printf()
192 	if (pca.n_next != 0)  in xc_printf()
193 		xen_emergency_print(buf, pca.n_next);  in xc_printf()