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| author |   Sven Schnelle <svens@linux.ibm.com> | 2021-05-05 22:01:10 +0200 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2021-06-07 17:06:58 +0200 |
| commit | 17e89e1340a377b2f14a14d7050f609328592793 (patch) | |
| tree | 603bb316ce5b2116d4689da9d31236234418b1c7 /arch/s390/boot | |
| parent | s390/entry: use assignment to read intcode / asm to copy gprs (diff) | |
| download | linux-dev-17e89e1340a377b2f14a14d7050f609328592793.tar.xz linux-dev-17e89e1340a377b2f14a14d7050f609328592793.zip | |
s390/facilities: move stfl information from lowcore to global data
With gcc-11, there are a lot of warnings because the facility functions
are accessing lowcore through a null pointer. Fix this by moving the
facility arrays away from lowcore.
Signed-off-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/boot')
| -rw-r--r-- | arch/s390/boot/als.c | 6 | ||||
| -rw-r--r-- | arch/s390/boot/ipl_parm.c | 6 | ||||
| -rw-r--r-- | arch/s390/boot/startup.c | 3 |
3 files changed, 9 insertions, 6 deletions
diff --git a/arch/s390/boot/als.c b/arch/s390/boot/als.c index ff6801d401c4..47c48fbfb563 100644 --- a/arch/s390/boot/als.c +++ b/arch/s390/boot/als.c @@ -68,7 +68,7 @@ void print_missing_facilities(void) first = 1; for (i = 0; i < ARRAY_SIZE(als); i++) { - val = ~S390_lowcore.stfle_fac_list[i] & als[i]; + val = ~stfle_fac_list[i] & als[i]; for (j = 0; j < BITS_PER_LONG; j++) { if (!(val & (1UL << (BITS_PER_LONG - 1 - j)))) continue; @@ -106,9 +106,9 @@ void verify_facilities(void) { int i; - __stfle(S390_lowcore.stfle_fac_list, ARRAY_SIZE(S390_lowcore.stfle_fac_list)); + __stfle(stfle_fac_list, ARRAY_SIZE(stfle_fac_list)); for (i = 0; i < ARRAY_SIZE(als); i++) { - if ((S390_lowcore.stfle_fac_list[i] & als[i]) != als[i]) + if ((stfle_fac_list[i] & als[i]) != als[i]) facility_mismatch(); } } diff --git a/arch/s390/boot/ipl_parm.c b/arch/s390/boot/ipl_parm.c index d372a45fe10e..865c66cb9b79 100644 --- a/arch/s390/boot/ipl_parm.c +++ b/arch/s390/boot/ipl_parm.c @@ -180,9 +180,9 @@ void setup_boot_command_line(void) static void modify_facility(unsigned long nr, bool clear) { if (clear) - __clear_facility(nr, S390_lowcore.stfle_fac_list); + __clear_facility(nr, stfle_fac_list); else - __set_facility(nr, S390_lowcore.stfle_fac_list); + __set_facility(nr, stfle_fac_list); } static void check_cleared_facilities(void) @@ -191,7 +191,7 @@ static void check_cleared_facilities(void) int i; for (i = 0; i < ARRAY_SIZE(als); i++) { - if ((S390_lowcore.stfle_fac_list[i] & als[i]) != als[i]) { + if ((stfle_fac_list[i] & als[i]) != als[i]) { sclp_early_printk("Warning: The Linux kernel requires facilities cleared via command line option\n"); print_missing_facilities(); break; diff --git a/arch/s390/boot/startup.c b/arch/s390/boot/startup.c index 05f8eefa3dcf..61a8ac4067e5 100644 --- a/arch/s390/boot/startup.c +++ b/arch/s390/boot/startup.c @@ -17,6 +17,9 @@ extern char __boot_data_preserved_start[], __boot_data_preserved_end[]; unsigned long __bootdata_preserved(__kaslr_offset); unsigned long __bootdata(ident_map_size); +u64 __bootdata_preserved(stfle_fac_list[16]); +u64 __bootdata_preserved(alt_stfle_fac_list[16]); + /* * Some code and data needs to stay below 2 GB, even when the kernel would be * relocated above 2 GB, because it has to use 31 bit addresses. |