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[PATCH] tpm: msecs_to_jiffies cleanups

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The timeout and duration values used in the tpm driver are not exposed to
userspace.  This patch converts the storage units to jiffies with
msecs_to_jiffies.  They were always being used in jiffies so this
simplifies things removing the need for calculation all over the place.
The change necessitated a type change in the tpm_chip struct to hold
jiffies.

Signed-off-by: Kylie Hall <kjhall@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Kylene Jo Hall
2006-04-22 02:38:19 -07:00
committed by Linus Torvalds
parent 27084efee0
commit 36b20020e5
3 changed files with 32 additions and 26 deletions
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22
drivers/char/tpm/tpm.c
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@@ -354,7 +354,7 @@ unsigned long tpm_calc_ordinal_duration(struct tpm_chip *chip,
TPM_PROTECTED_ORDINAL_MASK];
if (duration_idx != TPM_UNDEFINED)
duration = chip->vendor.duration[duration_idx] * HZ / 1000;
duration = chip->vendor.duration[duration_idx];
if (duration <= 0)
return 2 * 60 * HZ;
else
@@ -524,19 +524,19 @@ void tpm_get_timeouts(struct tpm_chip *chip)
timeout =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX)));
if (timeout)
chip->vendor.timeout_a = timeout;
chip->vendor.timeout_a = msecs_to_jiffies(timeout);
timeout =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_2_IDX)));
if (timeout)
chip->vendor.timeout_b = timeout;
chip->vendor.timeout_b = msecs_to_jiffies(timeout);
timeout =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_3_IDX)));
if (timeout)
chip->vendor.timeout_c = timeout;
chip->vendor.timeout_c = msecs_to_jiffies(timeout);
timeout =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_4_IDX)));
if (timeout)
chip->vendor.timeout_d = timeout;
chip->vendor.timeout_d = msecs_to_jiffies(timeout);
duration:
memcpy(data, tpm_cap, sizeof(tpm_cap));
@@ -553,11 +553,17 @@ duration:
return;
chip->vendor.duration[TPM_SHORT] =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX)));
msecs_to_jiffies(be32_to_cpu
(*((__be32 *) (data +
TPM_GET_CAP_RET_UINT32_1_IDX))));
chip->vendor.duration[TPM_MEDIUM] =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_2_IDX)));
msecs_to_jiffies(be32_to_cpu
(*((__be32 *) (data +
TPM_GET_CAP_RET_UINT32_2_IDX))));
chip->vendor.duration[TPM_LONG] =
be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_3_IDX)));
msecs_to_jiffies(be32_to_cpu
(*((__be32 *) (data +
TPM_GET_CAP_RET_UINT32_3_IDX))));
}
EXPORT_SYMBOL_GPL(tpm_get_timeouts);