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8c860ed825
When reworking the range checking for get_user(), the get_user_8() case
on 32-bit wasn't zeroing the high register. (The jump to bad_get_user_8
was accidentally dropped.) Restore the correct error handling
destination (and rename the jump to using the expected ".L" prefix).
While here, switch to using a named argument ("size") for the call
template ("%c4" to "%c[size]") as already used in the other call
templates in this file.
Found after moving the usercopy selftests to KUnit:
# usercopy_test_invalid: EXPECTATION FAILED at
lib/usercopy_kunit.c:278
Expected val_u64 == 0, but
val_u64 == -60129542144 (0xfffffff200000000)
Closes: https://lore.kernel.org/all/CABVgOSn=tb=Lj9SxHuT4_9MTjjKVxsq-ikdXC4kGHO4CfKVmGQ@mail.gmail.com
Fixes:
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|---|---|---|
| .. | ||
| .gitignore | ||
| atomic64_32.c | ||
| atomic64_386_32.S | ||
| atomic64_cx8_32.S | ||
| cache-smp.c | ||
| checksum_32.S | ||
| clear_page_64.S | ||
| cmdline.c | ||
| cmpxchg8b_emu.S | ||
| cmpxchg16b_emu.S | ||
| copy_mc_64.S | ||
| copy_mc.c | ||
| copy_page_64.S | ||
| copy_user_64.S | ||
| copy_user_uncached_64.S | ||
| cpu.c | ||
| csum-copy_64.S | ||
| csum-partial_64.c | ||
| csum-wrappers_64.c | ||
| delay.c | ||
| error-inject.c | ||
| getuser.S | ||
| hweight.S | ||
| inat.c | ||
| insn-eval.c | ||
| insn.c | ||
| iomem.c | ||
| kaslr.c | ||
| Makefile | ||
| memcpy_32.c | ||
| memcpy_64.S | ||
| memmove_32.S | ||
| memmove_64.S | ||
| memset_64.S | ||
| misc.c | ||
| msr-reg-export.c | ||
| msr-reg.S | ||
| msr-smp.c | ||
| msr.c | ||
| pc-conf-reg.c | ||
| putuser.S | ||
| retpoline.S | ||
| string_32.c | ||
| strstr_32.c | ||
| usercopy_32.c | ||
| usercopy_64.c | ||
| usercopy.c | ||
| x86-opcode-map.txt | ||