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author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-02-12 12:08:27 (GMT) |
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committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-03-25 10:49:33 (GMT) |
commit | 5a79859ae0f35d25c67a03e82bf0c80592f16a39 (patch) | |
tree | 37264d49f069812f19ced94e6ae171814fb7e498 /drivers/s390/block | |
parent | 1833c9f647e9bda1cd24653ff8f9c207b5f5b911 (diff) | |
download | linux-5a79859ae0f35d25c67a03e82bf0c80592f16a39.tar.xz |
s390: remove 31 bit support
Remove the 31 bit support in order to reduce maintenance cost and
effectively remove dead code. Since a couple of years there is no
distribution left that comes with a 31 bit kernel.
The 31 bit kernel also has been broken since more than a year before
anybody noticed. In addition I added a removal warning to the kernel
shown at ipl for 5 minutes: a960062e5826 ("s390: add 31 bit warning
message") which let everybody know about the plan to remove 31 bit
code. We didn't get any response.
Given that the last 31 bit only machine was introduced in 1999 let's
remove the code.
Anybody with 31 bit user space code can still use the compat mode.
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390/block')
-rw-r--r-- | drivers/s390/block/dasd.c | 2 | ||||
-rw-r--r-- | drivers/s390/block/dasd_diag.h | 42 | ||||
-rw-r--r-- | drivers/s390/block/dasd_eckd.c | 6 | ||||
-rw-r--r-- | drivers/s390/block/dasd_fba.c | 2 |
4 files changed, 0 insertions, 52 deletions
diff --git a/drivers/s390/block/dasd.c b/drivers/s390/block/dasd.c index be34ef4..697a0b2 100644 --- a/drivers/s390/block/dasd.c +++ b/drivers/s390/block/dasd.c @@ -1237,7 +1237,6 @@ EXPORT_SYMBOL(dasd_smalloc_request); */ void dasd_kfree_request(struct dasd_ccw_req *cqr, struct dasd_device *device) { -#ifdef CONFIG_64BIT struct ccw1 *ccw; /* Clear any idals used for the request. */ @@ -1245,7 +1244,6 @@ void dasd_kfree_request(struct dasd_ccw_req *cqr, struct dasd_device *device) do { clear_normalized_cda(ccw); } while (ccw++->flags & (CCW_FLAG_CC | CCW_FLAG_DC)); -#endif kfree(cqr->cpaddr); kfree(cqr->data); kfree(cqr); diff --git a/drivers/s390/block/dasd_diag.h b/drivers/s390/block/dasd_diag.h index a803cc7..e84a546 100644 --- a/drivers/s390/block/dasd_diag.h +++ b/drivers/s390/block/dasd_diag.h @@ -38,8 +38,6 @@ struct dasd_diag_characteristics { u8 rdev_features; } __attribute__ ((packed, aligned(4))); - -#ifdef CONFIG_64BIT #define DASD_DIAG_FLAGA_DEFAULT DASD_DIAG_FLAGA_FORMAT_64BIT typedef u64 blocknum_t; @@ -80,43 +78,3 @@ struct dasd_diag_rw_io { struct dasd_diag_bio *bio_list; u8 spare4[8]; } __attribute__ ((packed, aligned(8))); -#else /* CONFIG_64BIT */ -#define DASD_DIAG_FLAGA_DEFAULT 0x0 - -typedef u32 blocknum_t; -typedef s32 sblocknum_t; - -struct dasd_diag_bio { - u8 type; - u8 status; - u16 spare1; - blocknum_t block_number; - u32 alet; - void *buffer; -} __attribute__ ((packed, aligned(8))); - -struct dasd_diag_init_io { - u16 dev_nr; - u8 flaga; - u8 spare1[21]; - u32 block_size; - blocknum_t offset; - sblocknum_t start_block; - blocknum_t end_block; - u8 spare2[24]; -} __attribute__ ((packed, aligned(8))); - -struct dasd_diag_rw_io { - u16 dev_nr; - u8 flaga; - u8 spare1[21]; - u8 key; - u8 flags; - u8 spare2[2]; - u32 block_count; - u32 alet; - struct dasd_diag_bio *bio_list; - u32 interrupt_params; - u8 spare3[20]; -} __attribute__ ((packed, aligned(8))); -#endif /* CONFIG_64BIT */ diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index d47f5b9..49b48a8 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -1633,7 +1633,6 @@ static void dasd_eckd_kick_validate_server(struct dasd_device *device) static u32 get_fcx_max_data(struct dasd_device *device) { -#if defined(CONFIG_64BIT) int tpm, mdc; int fcx_in_css, fcx_in_gneq, fcx_in_features; struct dasd_eckd_private *private; @@ -1657,9 +1656,6 @@ static u32 get_fcx_max_data(struct dasd_device *device) return 0; } else return mdc * FCX_MAX_DATA_FACTOR; -#else - return 0; -#endif } /* @@ -2615,10 +2611,8 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single( /* Eckd can only do full blocks. */ return ERR_PTR(-EINVAL); count += bv.bv_len >> (block->s2b_shift + 9); -#if defined(CONFIG_64BIT) if (idal_is_needed (page_address(bv.bv_page), bv.bv_len)) cidaw += bv.bv_len >> (block->s2b_shift + 9); -#endif } /* Paranoia. */ if (count != last_rec - first_rec + 1) diff --git a/drivers/s390/block/dasd_fba.c b/drivers/s390/block/dasd_fba.c index 2c8e68b..c9262e7 100644 --- a/drivers/s390/block/dasd_fba.c +++ b/drivers/s390/block/dasd_fba.c @@ -287,10 +287,8 @@ static struct dasd_ccw_req *dasd_fba_build_cp(struct dasd_device * memdev, /* Fba can only do full blocks. */ return ERR_PTR(-EINVAL); count += bv.bv_len >> (block->s2b_shift + 9); -#if defined(CONFIG_64BIT) if (idal_is_needed (page_address(bv.bv_page), bv.bv_len)) cidaw += bv.bv_len / blksize; -#endif } /* Paranoia. */ if (count != last_rec - first_rec + 1) |