2023-05-30 17:13:48

by Lino Sanfilippo

[permalink] [raw]
Subject: [PATCH] tpm, tpm_tis: correct tpm_tis_flags enumeration values

From: Lino Sanfilippo <[email protected]>

With commit 858e8b792d06 ("tpm, tpm_tis: Avoid cache incoherency in test
for interrupts") bit accessor functions are used to access flags in
tpm_tis_data->flags.

However these functions expect bit numbers, while the flags are defined as
bit masks in enum tpm_tis_flag.

Fix this inconsistency by using numbers instead of masks also for the flags
in the enum.

Reported-by: Pavel Machek <[email protected]>
Fixes: 858e8b792d06 ("tpm, tpm_tis: Avoid cache incoherency in test for interrupts")
Signed-off-by: Lino Sanfilippo <[email protected]>
Cc: [email protected]
---
drivers/char/tpm/tpm_tis_core.h | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/char/tpm/tpm_tis_core.h b/drivers/char/tpm/tpm_tis_core.h
index e978f457fd4d..610bfadb6acf 100644
--- a/drivers/char/tpm/tpm_tis_core.h
+++ b/drivers/char/tpm/tpm_tis_core.h
@@ -84,10 +84,10 @@ enum tis_defaults {
#define ILB_REMAP_SIZE 0x100

enum tpm_tis_flags {
- TPM_TIS_ITPM_WORKAROUND = BIT(0),
- TPM_TIS_INVALID_STATUS = BIT(1),
- TPM_TIS_DEFAULT_CANCELLATION = BIT(2),
- TPM_TIS_IRQ_TESTED = BIT(3),
+ TPM_TIS_ITPM_WORKAROUND = 0,
+ TPM_TIS_INVALID_STATUS = 1,
+ TPM_TIS_DEFAULT_CANCELLATION = 2,
+ TPM_TIS_IRQ_TESTED = 3,
};

struct tpm_tis_data {

base-commit: 7877cb91f1081754a1487c144d85dc0d2e2e7fc4
--
2.40.1


2023-06-02 19:41:28

by Pavel Machek

[permalink] [raw]
Subject: Re: [PATCH] tpm, tpm_tis: correct tpm_tis_flags enumeration values

Hi!

> From: Lino Sanfilippo <[email protected]>
>
> With commit 858e8b792d06 ("tpm, tpm_tis: Avoid cache incoherency in test
> for interrupts") bit accessor functions are used to access flags in
> tpm_tis_data->flags.
>
> However these functions expect bit numbers, while the flags are defined as
> bit masks in enum tpm_tis_flag.
>
> Fix this inconsistency by using numbers instead of masks also for the flags
> in the enum.
>

Reviewed-by: Pavel Machek <[email protected]>

Thank you!

Best regards,
Pavel
--
DENX Software Engineering GmbH, Managing Director: Erika Unter
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany


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