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https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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ccaabeea02
Remove attribute packed where possible failing this add proper alignment information to fix warnings like the one below: drivers/s390/cio/chsc.c: In function 'chsc_siosl': drivers/s390/cio/chsc.c:1287:2: warning: alignment 1 of 'struct <anonymous>' is less than 4 [-Wpacked-not-aligned] } __attribute__ ((packed)) *siosl_area; Note: this patch should be a nop since non of these structs use auto storage but allocated pages. However there are changes to the generated code because of additional padding at the end of some of the structs due to alignment when memset(foo, 0, sizeof(*foo)) is used. Signed-off-by: Sebastian Ott <sebott@linux.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
144 lines
2.8 KiB
C
144 lines
2.8 KiB
C
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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/*
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* ioctl interface for /dev/chsc
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*
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* Copyright IBM Corp. 2008, 2012
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* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
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*/
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#ifndef _ASM_CHSC_H
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#define _ASM_CHSC_H
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#include <linux/types.h>
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#include <linux/ioctl.h>
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#include <asm/chpid.h>
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#include <asm/schid.h>
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#define CHSC_SIZE 0x1000
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struct chsc_async_header {
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__u16 length;
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__u16 code;
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__u32 cmd_dependend;
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__u32 key : 4;
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__u32 : 28;
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struct subchannel_id sid;
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};
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struct chsc_async_area {
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struct chsc_async_header header;
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__u8 data[CHSC_SIZE - sizeof(struct chsc_async_header)];
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};
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struct chsc_header {
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__u16 length;
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__u16 code;
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};
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struct chsc_sync_area {
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struct chsc_header header;
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__u8 data[CHSC_SIZE - sizeof(struct chsc_header)];
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};
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struct chsc_response_struct {
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__u16 length;
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__u16 code;
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__u32 parms;
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__u8 data[CHSC_SIZE - 2 * sizeof(__u16) - sizeof(__u32)];
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};
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struct chsc_chp_cd {
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struct chp_id chpid;
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int m;
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int fmt;
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struct chsc_response_struct cpcb;
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};
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struct chsc_cu_cd {
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__u16 cun;
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__u8 cssid;
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int m;
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int fmt;
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struct chsc_response_struct cucb;
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};
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struct chsc_sch_cud {
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struct subchannel_id schid;
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int fmt;
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struct chsc_response_struct scub;
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};
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struct conf_id {
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int m;
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__u8 cssid;
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__u8 ssid;
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};
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struct chsc_conf_info {
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struct conf_id id;
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int fmt;
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struct chsc_response_struct scid;
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};
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struct ccl_parm_chpid {
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int m;
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struct chp_id chp;
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};
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struct ccl_parm_cssids {
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__u8 f_cssid;
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__u8 l_cssid;
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};
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struct chsc_comp_list {
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struct {
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enum {
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CCL_CU_ON_CHP = 1,
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CCL_CHP_TYPE_CAP = 2,
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CCL_CSS_IMG = 4,
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CCL_CSS_IMG_CONF_CHAR = 5,
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CCL_IOP_CHP = 6,
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} ctype;
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int fmt;
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struct ccl_parm_chpid chpid;
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struct ccl_parm_cssids cssids;
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} req;
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struct chsc_response_struct sccl;
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};
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struct chsc_dcal {
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struct {
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enum {
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DCAL_CSS_IID_PN = 4,
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} atype;
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__u32 list_parm[2];
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int fmt;
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} req;
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struct chsc_response_struct sdcal;
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};
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struct chsc_cpd_info {
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struct chp_id chpid;
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int m;
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int fmt;
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int rfmt;
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int c;
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struct chsc_response_struct chpdb;
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};
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#define CHSC_IOCTL_MAGIC 'c'
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#define CHSC_START _IOWR(CHSC_IOCTL_MAGIC, 0x81, struct chsc_async_area)
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#define CHSC_INFO_CHANNEL_PATH _IOWR(CHSC_IOCTL_MAGIC, 0x82, \
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struct chsc_chp_cd)
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#define CHSC_INFO_CU _IOWR(CHSC_IOCTL_MAGIC, 0x83, struct chsc_cu_cd)
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#define CHSC_INFO_SCH_CU _IOWR(CHSC_IOCTL_MAGIC, 0x84, struct chsc_sch_cud)
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#define CHSC_INFO_CI _IOWR(CHSC_IOCTL_MAGIC, 0x85, struct chsc_conf_info)
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#define CHSC_INFO_CCL _IOWR(CHSC_IOCTL_MAGIC, 0x86, struct chsc_comp_list)
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#define CHSC_INFO_CPD _IOWR(CHSC_IOCTL_MAGIC, 0x87, struct chsc_cpd_info)
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#define CHSC_INFO_DCAL _IOWR(CHSC_IOCTL_MAGIC, 0x88, struct chsc_dcal)
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#define CHSC_START_SYNC _IOWR(CHSC_IOCTL_MAGIC, 0x89, struct chsc_sync_area)
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#define CHSC_ON_CLOSE_SET _IOWR(CHSC_IOCTL_MAGIC, 0x8a, struct chsc_async_area)
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#define CHSC_ON_CLOSE_REMOVE _IO(CHSC_IOCTL_MAGIC, 0x8b)
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#endif
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