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303fd988ed
linux/drivers/s390/char
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Alexander Gordeev 303fd988ed s390/maccess: fix semantics of memcpy_real() and its callers 
There is a confusion with regard to the source address of
memcpy_real() and calling functions. While the declared
type for a source assumes a virtual address, in fact it
always called with physical address of the source.

This confusion led to bugs in copy_oldmem_kernel() and
copy_oldmem_user() functions, where __pa() macro applied
mistakenly to physical addresses. It does not lead to a
real issue, since virtual and physical addresses are
currently the same.

Fix both the bugs and memcpy_real() prototype by making
type of source address consistent to the function name
and the way it actually used.

Reviewed-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2022-02-09 22:56:04 +01:00
..
con3215.c tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00
con3270.c s390/con3270: use proper type for tasklet function 2021-09-07 13:38:42 +02:00
ctrlchar.c s390/ctrlchar: fix kernel doc comment 2021-09-07 13:38:42 +02:00
ctrlchar.h
defkeymap.c
defkeymap.map
diag_ftp.c
diag_ftp.h
fs3270.c *: convert stream-like files from nonseekable_open -> stream_open 2019-05-06 17:46:41 +03:00
hmcdrv_cache.c
hmcdrv_cache.h
hmcdrv_dev.c
hmcdrv_dev.h
hmcdrv_ftp.c s390/hmcdrv_ftp: fix kernel doc comment 2021-09-07 13:38:42 +02:00
hmcdrv_ftp.h
hmcdrv_mod.c
Kconfig s390/sclp: remove call home support 2019-06-19 17:54:27 +02:00
keyboard.c TTY/Serial driver patches for 4.19-rc1 2018-08-18 10:50:41 -07:00
keyboard.h tty: the rest, stop using tty_schedule_flip() 2021-11-25 18:35:23 +01:00
Makefile s390/sclp: Add support for SCLP AP adapter config/deconfig 2020-10-07 21:50:00 +02:00
monreader.c s390/monreader: Remove power management support 2021-06-18 16:41:20 +02:00
monwriter.c s390/monwriter: Remove power management support 2021-06-18 16:41:20 +02:00
raw3270.c s390: replace snprintf in show functions with sysfs_emit 2021-11-16 12:29:19 +01:00
raw3270.h s390: remove pm support from console drivers 2020-12-02 18:19:24 +01:00
sclp_ap.c s390/sclp: Add support for SCLP AP adapter config/deconfig 2020-10-07 21:50:00 +02:00
sclp_cmd.c s390: remove invalid email address of Heiko Carstens 2022-02-06 23:31:29 +01:00
sclp_con.c s390 updates for the 5.14 merge window 2021-07-04 12:17:38 -07:00
sclp_config.c s390: remove invalid email address of Heiko Carstens 2022-02-06 23:31:29 +01:00
sclp_cpi_sys.c
sclp_cpi_sys.h
sclp_ctl.c
sclp_diag.h
sclp_early_core.c s390/boot: move sclp early buffer from fixed address in asm to C 2021-07-27 09:39:15 +02:00
sclp_early.c s390/sclp: fix memblock_phys_free() vs memblock_free() confusion 2021-12-16 19:58:06 +01:00
sclp_ftp.c s390/hmcdrv: fix kernel doc comments 2021-10-26 15:21:29 +02:00
sclp_ftp.h
sclp_ocf.c
sclp_pci.c s390: Replace zero-length array with flexible-array member 2020-02-27 16:02:21 +01:00
sclp_quiesce.c s390/sclp: Remove quiesce power management support 2021-06-18 16:41:20 +02:00
sclp_rw.c TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
sclp_rw.h TTY / Serial patches for 5.14-rc1 2021-07-05 14:08:24 -07:00
sclp_sd.c s390/sclp_sd: use default_groups in kobj_type 2022-01-08 17:44:05 +01:00
sclp_sdias.c s390/sclp_sdias: fix sclp_sdias_copy() virtual vs physical address confusion 2022-02-06 23:31:29 +01:00
sclp_sdias.h
sclp_tty.c tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00
sclp_tty.h
sclp_vt220.c s390/sclp_vt220: fix unused function warning 2021-10-04 09:49:37 +02:00
sclp.c s390/sclp: sort out physical vs virtual pointers usage 2021-10-26 15:21:28 +02:00
sclp.h s390/sclp: sort out physical vs virtual pointers usage 2021-10-26 15:21:28 +02:00
tape_34xx.c s390/tape: remove unsupported PM functions 2020-12-02 18:19:24 +01:00
tape_3590.c s390/tape: Fix spelling mistake in function name tape_3590_erp_succeded 2021-01-27 13:00:47 +01:00
tape_3590.h
tape_char.c s390: Fix fall-through warnings for Clang 2021-07-13 14:43:09 -05:00
tape_class.c
tape_class.h
tape_core.c s390/tape: remove unsupported PM functions 2020-12-02 18:19:24 +01:00
tape_proc.c s390/drivers: fix proc/debugfs file permissions 2018-12-13 10:42:24 +01:00
tape_std.c s390/tape: fix timer initialization in tape_std_assign() 2021-11-08 14:17:49 +01:00
tape_std.h s390: remove orphaned function declarations 2020-09-30 12:09:54 +02:00
tape.h s390/tape: remove unsupported PM functions 2020-12-02 18:19:24 +01:00
tty3270.c tty: drop put_tty_driver 2021-07-27 12:17:21 +02:00
tty3270.h
vmcp.c s390/vmcp: use page_to_virt instead of page_to_phys 2021-12-06 14:42:25 +01:00
vmlogrdr.c s390/vmlogrdr: Remove power management support 2021-06-18 16:41:21 +02:00
vmur.c whack-a-mole: don't open-code iminor/imajor 2021-02-23 10:25:29 -05:00
vmur.h
zcore.c s390/maccess: fix semantics of memcpy_real() and its callers 2022-02-09 22:56:04 +01:00