From: Lino Sanfilippo <LinoSanfilippo@gmx.de>
To: peterhuewe@gmx.de, jarkko@kernel.org, jgg@ziepe.ca
Cc: stefanb@linux.vnet.ibm.com, linux@mniewoehner.de,
linux-integrity@vger.kernel.org, linux-kernel@vger.kernel.org,
jandryuk@gmail.com, pmenzel@molgen.mpg.de,
l.sanfilippo@kunbus.com, lukas@wunner.de,
p.rosenberger@kunbus.com
Subject: Re: [PATCH v9 12/12] tpm, tpm_tis: Enable interrupt test
Date: Mon, 14 Nov 2022 14:35:44 +0100 [thread overview]
Message-ID: <6ab8b468-44ee-a488-0f74-eb9dccdd0247@gmx.de> (raw)
In-Reply-To: <20221110152533.24243-13-LinoSanfilippo@gmx.de>
On 10.11.22 16:25, Lino Sanfilippo wrote:
> From: Lino Sanfilippo <l.sanfilippo@kunbus.com>
>
> The test for interrupts in tpm_tis_send() is skipped if the flag
> TPM_CHIP_FLAG_IRQ is not set. Since the current code never sets the flag
> initially the test is never executed.
>
> Fix this by setting the flag in tpm_tis_gen_interrupt() right after
> interrupts have been enabled and before the test is executed.
>
> Signed-off-by: Lino Sanfilippo <l.sanfilippo@kunbus.com>
> ---
> drivers/char/tpm/tpm_tis_core.c | 2 ++
> 1 file changed, 2 insertions(+)
>
> diff --git a/drivers/char/tpm/tpm_tis_core.c b/drivers/char/tpm/tpm_tis_core.c
> index 469a1db95941..1f78582264eb 100644
> --- a/drivers/char/tpm/tpm_tis_core.c
> +++ b/drivers/char/tpm/tpm_tis_core.c
> @@ -793,6 +793,8 @@ static int tpm_tis_gen_interrupt(struct tpm_chip *chip)
> if (ret < 0)
> return ret;
>
> + chip->flags |= TPM_CHIP_FLAG_IRQ;
> +
> if (chip->flags & TPM_CHIP_FLAG_TPM2)
> ret = tpm2_get_tpm_pt(chip, 0x100, &cap2, desc);
> else
Please ignore this patch. I will send another version in a v10 of this series.
Regards,
Lino
prev parent reply other threads:[~2022-11-14 13:36 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-10 15:25 [PATCH v9 00/12] TPM IRQ fixes Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 01/12] tpm, tpm_tis: Avoid cache incoherency in test for interrupts Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 02/12] tpm, tpm_tis: Claim locality before writing TPM_INT_ENABLE register Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 03/12] tpm, tpm_tis: Disable interrupts if tpm_tis_probe_irq() failed Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 04/12] tpm, tmp_tis: Claim locality before writing interrupt registers Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 05/12] tpm, tpm_tis: Only handle supported interrupts Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 06/12] tpm, tpm_tis: Move interrupt mask checks into own function Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 07/12] tpm, tpm_tis: do not check for the active locality in interrupt handler Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 08/12] tpm, tpm: Implement usage counter for locality Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 09/12] tpm, tpm_tis: Request threaded interrupt handler Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 10/12] tpm, tpm_tis: Claim locality in " Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 11/12] tpm, tpm_tis: Claim locality when interrupts are reenabled on resume Lino Sanfilippo
2022-11-10 15:25 ` [PATCH v9 12/12] tpm, tpm_tis: Enable interrupt test Lino Sanfilippo
2022-11-14 13:35 ` Lino Sanfilippo [this message]
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