linux-imx

// SPDX-License-Identifier: GPL-2.0

/* gdth_proc.c 

 * $Id: gdth_proc.c,v 1.43 2006/01/11 16:15:00 achim Exp $

 */

​

#include <linux/completion.h>

#include <linux/slab.h>

​

int gdth_set_info(struct Scsi_Host *host, char *buffer, int length)

{

    gdth_ha_str *ha = shost_priv(host);

    int ret_val = -EINVAL;

​

    TRACE2(("gdth_set_info() ha %d\n",ha->hanum,));

​

    if (length >= 4) {

        if (strncmp(buffer,"gdth",4) == 0) {

            buffer += 5;

            length -= 5;

            ret_val = gdth_set_asc_info(host, buffer, length, ha);

        }

    }

​

    return ret_val;

}

static int gdth_set_asc_info(struct Scsi_Host *host, char *buffer,

                        int length, gdth_ha_str *ha)

{

    int orig_length, drive, wb_mode;

    int i, found;

    gdth_cmd_str    gdtcmd;

    gdth_cpar_str   *pcpar;

​

    char            cmnd[MAX_COMMAND_SIZE];

    memset(cmnd, 0xff, 12);

    memset(&gdtcmd, 0, sizeof(gdth_cmd_str));

​

    TRACE2(("gdth_set_asc_info() ha %d\n",ha->hanum));

    orig_length = length + 5;

    drive = -1;

    wb_mode = 0;

    found = FALSE;

​

    if (length >= 5 && strncmp(buffer,"flush",5)==0) {

        buffer += 6;

        length -= 6;

        if (length && *buffer>='0' && *buffer<='9') {

            drive = (int)(*buffer-'0');

            ++buffer; --length;

            if (length && *buffer>='0' && *buffer<='9') {

                drive = drive*10 + (int)(*buffer-'0');

                ++buffer; --length;

            }

            printk("GDT: Flushing host drive %d .. ",drive);

        } else {

            printk("GDT: Flushing all host drives .. ");

        }

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

            if (ha->hdr[i].present) {

                if (drive != -1 && i != drive)

                    continue;

                found = TRUE;