From: Winston Wen <[email protected]>
On x86_64 with gcc version 13.3.0, I compile kernel with:
make defconfig
./scripts/kconfig/merge_config.sh .config <(
echo CONFIG_TCG_TPM=y
echo CONFIG_HW_RANDOM=m
)
make KCFLAGS="-fno-inline-small-functions -fno-inline-functions-called-once"
Then I get a link error:
ld: vmlinux.o: in function `tpm_add_hwrng':
tpm-chip.c:(.text+0x6c5924): undefined reference to `hwrng_register'
ld: vmlinux.o: in function `tpm_chip_unregister':
(.text+0x6c5bc9): undefined reference to `hwrng_unregister'
ld: vmlinux.o: in function `tpm_chip_register':
(.text+0x6c5c9b): undefined reference to `hwrng_unregister'
Signed-off-by: Winston Wen <[email protected]>
Co-Developed-by: Chen Linxuan <[email protected]>
Signed-off-by: Chen Linxuan <[email protected]>
---
drivers/char/tpm/tpm-chip.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/char/tpm/tpm-chip.c b/drivers/char/tpm/tpm-chip.c
index e25daf2396d3..48cc74d84247 100644
--- a/drivers/char/tpm/tpm-chip.c
+++ b/drivers/char/tpm/tpm-chip.c
@@ -534,7 +534,7 @@ static int tpm_hwrng_read(struct hwrng *rng, void *data,
size_t max, bool wait)
return tpm_get_random(chip, data, max);
}
-static bool tpm_is_hwrng_enabled(struct tpm_chip *chip)
+static __always_inline bool tpm_is_hwrng_enabled(struct tpm_chip *chip)
{
if (!IS_ENABLED(CONFIG_HW_RANDOM_TPM))
return false;
--
2.48.1
