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platform_kernel-5.15
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platform_kernel-5.15/drivers/net/ipa
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Alex Elder 75a09b8d02 net: ipa: fix atomic update in ipa_endpoint_replenish() 
commit 6c0e3b5ce94947b311348c367db9e11dcb2ccc93 upstream.

In ipa_endpoint_replenish(), if an error occurs when attempting to
replenish a receive buffer, we just quit and try again later.  In
that case we increment the backlog count to reflect that the attempt
was unsuccessful.  Then, if the add_one flag was true we increment
the backlog again.

This second increment is not included in the backlog local variable
though, and its value determines whether delayed work should be
scheduled.  This is a bug.

Fix this by determining whether 1 or 2 should be added to the
backlog before adding it in a atomic_add_return() call.

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Fixes: 84f9bd12d4 ("soc: qcom: ipa: IPA endpoints")
Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
 		2022-01-27 11:05:39 +01:00
..
Kconfig qcom_scm: hide Kconfig symbol 2021-10-07 16:51:57 +02:00
Makefile net: ipa: rename "ipa_clock.c" 2021-08-22 09:44:17 +01:00
gsi.c net: ipa: disable GSI interrupts while suspended 2021-08-04 10:12:05 +01:00
gsi.h net: ipa: disable GSI interrupts while suspended 2021-08-04 10:12:05 +01:00
gsi_private.h net: ipa: DMA addresses are nicely aligned 2021-03-28 18:12:03 -07:00
gsi_reg.h net: ipa: inter-EE interrupts aren't always available 2021-06-21 12:30:59 -07:00
gsi_trans.c net: ipa: use WARN_ON() rather than assertions 2021-07-26 22:38:11 +01:00
gsi_trans.h net: ipa: fix all kernel-doc warnings 2021-03-28 18:12:03 -07:00
ipa.h net: ipa: rename ipa_clock_* symbols 2021-08-22 09:44:17 +01:00
ipa_cmd.c net: ipa: kill ipa_cmd_pipeline_clear() 2021-12-01 09:04:51 +01:00
ipa_cmd.h net: ipa: kill ipa_cmd_pipeline_clear() 2021-12-01 09:04:51 +01:00
ipa_data-v3.1.c net: ipa: rename ipa_clock_* symbols 2021-08-22 09:44:17 +01:00
ipa_data-v3.5.1.c net: ipa: rename ipa_clock_* symbols 2021-08-22 09:44:17 +01:00
ipa_data-v4.2.c net: ipa: rename ipa_clock_* symbols 2021-08-22 09:44:17 +01:00
ipa_data-v4.5.c net: ipa: rename ipa_clock_* symbols 2021-08-22 09:44:17 +01:00
ipa_data-v4.9.c net: ipa: rename ipa_clock_* symbols 2021-08-22 09:44:17 +01:00
ipa_data-v4.11.c net: ipa: rename ipa_clock_* symbols 2021-08-22 09:44:17 +01:00
ipa_data.h net: ipa: rename ipa_clock_* symbols 2021-08-22 09:44:17 +01:00
ipa_endpoint.c net: ipa: fix atomic update in ipa_endpoint_replenish() 2022-01-27 11:05:39 +01:00
ipa_endpoint.h net: ipa: three small fixes 2021-04-09 20:57:26 -07:00
ipa_gsi.c net: ipa: include declarations in "ipa_gsi.c" 2020-07-07 12:43:18 -07:00
ipa_gsi.h net: ipa: fix kerneldoc comments 2020-07-13 17:11:53 -07:00
ipa_interrupt.c net: ipa: use autosuspend 2021-08-22 09:44:17 +01:00
ipa_interrupt.h net: ipa: set up IPA interrupts earlier 2021-07-26 23:09:18 +01:00
ipa_main.c net: ipa: separate disabling setup from modem stop 2021-12-01 09:04:51 +01:00
ipa_mem.c net: ipa: don't index mem data array by ID 2021-06-10 14:50:08 -07:00
ipa_mem.h net: ipa: don't index mem data array by ID 2021-06-10 14:50:08 -07:00
ipa_modem.c net: ipa: separate disabling setup from modem stop 2021-12-01 09:04:51 +01:00
ipa_modem.h net: ipa: kill ipa_modem_setup() 2021-07-26 23:09:18 +01:00
ipa_power.c net: ipa: rename "ipa_clock.c" 2021-08-22 09:44:17 +01:00
ipa_power.h net: ipa: rename "ipa_clock.c" 2021-08-22 09:44:17 +01:00
ipa_qmi.c net: ipa: kill ipa_modem_setup() 2021-07-26 23:09:18 +01:00
ipa_qmi.h net: ipa: kill ipa_modem_setup() 2021-07-26 23:09:18 +01:00
ipa_qmi_msg.c net: ipa: extend the INDICATION_REGISTER request 2021-03-16 11:17:59 -07:00
ipa_qmi_msg.h net: ipa: extend the INDICATION_REGISTER request 2021-03-16 11:17:59 -07:00
ipa_reg.c
…
ipa_reg.h net: ipa: use WARN_ON() rather than assertions 2021-07-26 22:38:11 +01:00
ipa_resource.c net/ipa: ipa_resource: Fix wrong for loop range 2021-11-25 09:48:34 +01:00
ipa_resource.h net: ipa: get rid of empty IPA functions 2021-04-09 20:57:25 -07:00
ipa_smp2p.c net: ipa: separate disabling setup from modem stop 2021-12-01 09:04:51 +01:00
ipa_smp2p.h net: ipa: separate disabling setup from modem stop 2021-12-01 09:04:51 +01:00
ipa_sysfs.c net: ipa: introduce sysfs code 2021-06-11 14:13:18 -07:00
ipa_sysfs.h net: ipa: introduce sysfs code 2021-06-11 14:13:18 -07:00
ipa_table.c net: ipa: initialize all filter table slots 2021-09-08 12:10:33 +01:00
ipa_table.h net: ipa: always validate filter and route tables 2021-07-26 22:38:11 +01:00
ipa_uc.c net: ipa: rename ipa_clock_* symbols 2021-08-22 09:44:17 +01:00
ipa_uc.h net: ipa: rename ipa_clock_* symbols 2021-08-22 09:44:17 +01:00
ipa_version.h net: ipa: introduce sysfs code 2021-06-11 14:13:18 -07:00