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1// SPDX-License-Identifier: Zlib2/* dfltcc.c - SystemZ DEFLATE CONVERSION CALL support. */3 4#include <linux/export.h>5#include <linux/module.h>6#include "dfltcc_util.h"7#include "dfltcc.h"8 9char *oesc_msg(10    char *buf,11    int oesc12)13{14    if (oesc == 0x00)15        return NULL; /* Successful completion */16    else {17#ifdef STATIC18        return NULL; /* Ignore for pre-boot decompressor */19#else20        sprintf(buf, "Operation-Ending-Supplemental Code is 0x%.2X", oesc);21        return buf;22#endif23    }24}25 26void dfltcc_reset_state(struct dfltcc_state *dfltcc_state) {27    /* Initialize available functions */28    if (is_dfltcc_enabled()) {29        dfltcc(DFLTCC_QAF, &dfltcc_state->param, NULL, NULL, NULL, NULL, NULL);30        memmove(&dfltcc_state->af, &dfltcc_state->param, sizeof(dfltcc_state->af));31    } else32        memset(&dfltcc_state->af, 0, sizeof(dfltcc_state->af));33 34    /* Initialize parameter block */35    memset(&dfltcc_state->param, 0, sizeof(dfltcc_state->param));36    dfltcc_state->param.nt = 1;37    dfltcc_state->param.ribm = DFLTCC_RIBM;38}39 40MODULE_LICENSE("GPL");41