// SPDX-License-Identifier: GPL-2.0#include <linux/bitops.h>#include <linux/cleanup.h>#include <linux/seq_file.h>#include <scsi/scsi_cmnd.h>#include <scsi/scsi_dbg.h>#include <scsi/scsi_host.h>#include "scsi_debugfs.h" #define SCSI_CMD_FLAG_NAME(name)[const_ilog2(SCMD_##name)] = #namestatic const char *const scsi_cmd_flags[] = {	SCSI_CMD_FLAG_NAME(TAGGED),	SCSI_CMD_FLAG_NAME(INITIALIZED),	SCSI_CMD_FLAG_NAME(LAST),};#undef SCSI_CMD_FLAG_NAME static int scsi_flags_show(struct seq_file *m, const unsigned long flags,			   const char *const *flag_name, int flag_name_count){	bool sep = false;	int i; 	for_each_set_bit(i, &flags, BITS_PER_LONG) {		if (sep)			seq_puts(m, "|");		sep = true;		if (i < flag_name_count && flag_name[i])			seq_puts(m, flag_name[i]);		else			seq_printf(m, "%d", i);	}	return 0;} static const char *scsi_cmd_list_info(struct scsi_cmnd *cmd){	struct Scsi_Host *shost = cmd->device->host;	struct scsi_cmnd *cmd2; 	guard(spinlock_irq)(shost->host_lock); 	list_for_each_entry(cmd2, &shost->eh_abort_list, eh_entry)		if (cmd == cmd2)			return "on eh_abort_list"; 	list_for_each_entry(cmd2, &shost->eh_cmd_q, eh_entry)		if (cmd == cmd2)			return "on eh_cmd_q"; 	return NULL;} void scsi_show_rq(struct seq_file *m, struct request *rq){	struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq);	int alloc_ms = jiffies_to_msecs(jiffies - cmd->jiffies_at_alloc);	int timeout_ms = jiffies_to_msecs(rq->timeout);	char buf[80] = "(?)"; 	if (cmd->flags & SCMD_INITIALIZED) {		const char *list_info = scsi_cmd_list_info(cmd); 		__scsi_format_command(buf, sizeof(buf), cmd->cmnd, cmd->cmd_len);		seq_printf(m, ", .cmd=%s, .retries=%d, .allowed=%d, .result = %#x%s%s",			   buf, cmd->retries, cmd->allowed, cmd->result,			   list_info ? ", " : "", list_info ? : "");		seq_printf(m, ", .timeout=%d.%03d, allocated %d.%03d s ago",			   timeout_ms / 1000, timeout_ms % 1000,			   alloc_ms / 1000, alloc_ms % 1000);	}	seq_printf(m, ", .flags=");	scsi_flags_show(m, cmd->flags, scsi_cmd_flags,			ARRAY_SIZE(scsi_cmd_flags));}