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| author | Heiko Carstens <heiko.carstens@de.ibm.com> | 2015-02-12 13:08:27 +0100 |
|---|---|---|
| committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2015-03-25 11:49:33 +0100 |
| commit | 5a79859ae0f35d25c67a03e82bf0c80592f16a39 (patch) | |
| tree | 37264d49f069812f19ced94e6ae171814fb7e498 /drivers/s390/block/dasd_eckd.c | |
| parent | 1833c9f647e9bda1cd24653ff8f9c207b5f5b911 (diff) | |
| download | lwn-5a79859ae0f35d25c67a03e82bf0c80592f16a39.tar.gz lwn-5a79859ae0f35d25c67a03e82bf0c80592f16a39.zip | |
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/dasd_eckd.c')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.c | 6 |
1 files changed, 0 insertions, 6 deletions
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index d47f5b99623a..49b48a887c66 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) |