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| author | Benjamin Gray <bgray@linux.ibm.com> | 2023-07-06 11:08:16 +1000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2023-08-02 22:57:22 +1000 |
| commit | 86582e6189dd8f9f52c25d46c70fe5d111da6345 (patch) | |
| tree | cec403b3482fa53b0820f4bd8dc94e6475ab79e3 /lib/crypto/mpi/mpi-bit.c | |
| parent | 2dc0bc1138eecc88b2c376ccb0b0acb215c25a5c (diff) | |
powerpc/powermac: Use early_* IO variants in via_calibrate_decr()
On a powermac platform, via the call path:
start_kernel()
time_init()
ppc_md.calibrate_decr() (pmac_calibrate_decr)
via_calibrate_decr()
ioremap() and iounmap() are called. The unmap can enable interrupts
unexpectedly (cond_resched() in vunmap_pmd_range()), which causes a
warning later in the boot sequence in start_kernel().
Use the early_* variants of these IO functions to prevent this.
The issue is pre-existing, but is surfaced by commit 721255b9826b
("genirq: Use a maple tree for interrupt descriptor management").
Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20230706010816.72682-1-bgray@linux.ibm.com
Diffstat (limited to 'lib/crypto/mpi/mpi-bit.c')
0 files changed, 0 insertions, 0 deletions