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iwl_rfi_is_enabled_in_bios()
Renamed iwl_mvm_eval_dsm_rfi() to iwl_rfi_is_enabled_in_bios() to better
reflect the function's operation. Additionally, moved the function to the
regulatory.c file for better organization. optimize local variable
usage in it.
Signed-off-by: Anjaneyulu <pagadala.yesu.anjaneyulu@intel.com>
Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250205145347.b7ac9d05234e.Ieb623d7e8dca6bb6a5733682b31e4ff1e39373f0@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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https://wireless.wiki.kernel.org site now redirects to
https://wireless.docs.kernel.org/en/latest/ making the reference
information for the b43 firmware inaccessible. Update the URL to the
current location.
Link: https://bugs.debian.org/1095062
Signed-off-by: Salvatore Bonaccorso <carnil@debian.org>
Acked-by: Michael Büsch <m@bues.ch>
Link: https://patch.msgid.link/20250205110614.216958-1-carnil@debian.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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Since we use hwsim for testing e.g. the hostapd implementation,
enable strict mode to catch errors that would otherwise not be
caught.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250205110958.85bee694f09c.I61ec37d20fe97699d47fce252dc4ae2e4475fc51@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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-Wflex-array-member-not-at-end was introduced in GCC-14, and we are
getting ready to enable it, globally.
So, in order to avoid ending up with a flexible-array member in the
middle of other structs, we use the `__struct_group()` helper to
create a new tagged `struct qlink_tlv_hdr_fixed`. This structure
groups together all the members of the flexible `struct qlink_tlv_hdr`
except the flexible array.
As a result, the array is effectively separated from the rest of the
members without modifying the memory layout of the flexible structure.
We then change the type of the middle struct member currently causing
trouble from `struct qlink_tlv_hdr` to `struct qlink_tlv_hdr_fixed`.
We also want to ensure that when new members need to be added to the
flexible structure, they are always included within the newly created
tagged struct. For this, we use `static_assert()`. This ensures that
the memory layout for both the flexible structure and the new tagged
struct is the same after any changes.
This approach avoids having to implement `struct qlink_tlv_hdr_fixed`
as a completely separate structure, thus preventing having to maintain
two independent but basically identical structures, closing the door
to potential bugs in the future.
So, with this changes, fix 66 of the following warnings:
drivers/net/wireless/quantenna/qtnfmac/qlink.h:1681:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/quantenna/qtnfmac/qlink.h:1660:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/quantenna/qtnfmac/qlink.h:1646:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/quantenna/qtnfmac/qlink.h:1621:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/quantenna/qtnfmac/qlink.h:1609:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
drivers/net/wireless/quantenna/qtnfmac/qlink.h:1570:30: warning: structure containing a flexible array member is not at the end of another structure [-Wflex-array-member-not-at-end]
Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Link: https://patch.msgid.link/Z6K0Nd_IprrhS6pn@kspp
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The last use of mwifiex_uap_del_sta_data() was removed in 2014 by
commit dda9ddeb2638 ("mwifiex: do not delete station entries in del_sta
handler")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Link: https://patch.msgid.link/20250204012512.390209-1-linux@treblig.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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There is a spelling mistake in a IPW_DEBUG_INFO message. Fix it.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Link: https://patch.msgid.link/20250202220659.199341-1-colin.i.king@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This is a firmware command and is not specific to the iwlmvm op_mode
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250119210104.276658439163.I70641851f9e5210ec3a7033db38a45d24814083b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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No need to carry the version number in the structure name if this is the
latest version available.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250119210104.9d218a5c4f6b.I9de3e424be48d66994cde3684ce7e9e99456067d@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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This command is not specific to iwlmvm.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com>
Link: https://patch.msgid.link/20250119210104.04f3afcf9c77.Ic2b6f265d0b4aea25ccc7114d6f48afa621871be@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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The last use of iwl_ax204_name[], iwl_ax221_name[] and iwl_cfg_so_a0_ms_a0
was removed by
commit f473a7fd6d60 ("wifi: iwlwifi: remove devices that never came out")
Remove them.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20241223013202.340180-7-linux@treblig.org
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iwl_bz_name[] has been unused since the resent
commit 6795a37161fb ("wifi: iwlwifi: Print a specific device name.")
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20241223013202.340180-6-linux@treblig.org
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iwl_mvm_ftm_add_pasn_sta() was added in 2020 by
commit 0739a7d70e00 ("iwlwifi: mvm: initiator: add option for adding a
PASN responder")
but hasn't been used.
Remove it.
That was the only caller of iwl_mvm_ftm_remove_pasn_sta().
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20241223013202.340180-5-linux@treblig.org
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iwl_mvm_ftm_respoder_add_pasn_sta() and
iwl_mvm_ftm_resp_remove_pasn_sta() were added in 2020 by
commit be82ecd3a5c8 ("iwlwifi: mvm: add an option to add PASN station")
but have remained unused.
Remove them.
After that removal iwl_mvm_add_pasn_sta() is now unused.
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20241223013202.340180-4-linux@treblig.org
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iwl_mvm_rx_missed_vap_notif() was added in 2019 by
commit 449a29d0fead ("iwlwifi: mvm: add notification for missed VAP")
but hasn't been used.
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20241223013202.340180-3-linux@treblig.org
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iwl_rx_ant_restriction() was added in 2009 by
commit 46f9381aa3fb ("iwlwifi: Thermal Throttling Management - part 2")
but never used.
Remove it.
Signed-off-by: Dr. David Alan Gilbert <linux@treblig.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Link: https://patch.msgid.link/20241223013202.340180-2-linux@treblig.org
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git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless
Kalle Valo says:
====================
wireless fixes for v6.14-rc3
We have only one fix for ath12k and one fix for brcmfmac. Also this
will be my last pull request as I'm stepping down as wireless driver
maintainer.
* tag 'wireless-2025-02-07' of git://git.kernel.org/pub/scm/linux/kernel/git/wireless/wireless:
MAINTAINERS: wifi: remove Kalle
MAINTAINERS: wifi: ath: remove Kalle
wifi: brcmfmac: use random seed flag for BCM4355 and BCM4364 firmware
wifi: ath12k: fix handling of 6 GHz rules
====================
Link: https://patch.msgid.link/20250207182957.23315C4CED1@smtp.kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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The wiphy_locked_debugfs_read() and wiphy_locked_debugfs_write() used
by rtw89 are defined if CFG80211_DEBUGFS enabled. Add the dependency
accordingly.
Fixes: 8fdf78f3cd5f ("wifi: rtw89: debugfs: use wiphy_locked_debugfs_{read,write}() if needed")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202502101810.3CUpUL7p-lkp@intel.com/
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250210123105.10466-1-pkshih@realtek.com
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There are some typos in comments/messages:
- althougth -> although
- asume -> assume
Fix them via codespell.
Signed-off-by: Andrew Kreimer <algonell@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250206082457.9148-1-algonell@gmail.com
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This function tells the firmware what rates it can use.
Put the 3SS and 4SS HT rates supported by the other station into the
rate mask.
Remove the 3SS and 4SS rates from the rate mask if the hardware only has
2 spatial streams.
And finally, select the right rate ID (a parameter for the firmware)
when the hardware has 3 spatial streams.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/48d1d90f-2aeb-4ec5-9a24-0980e10eae1e@gmail.com
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Although the RTL8814AU only has 3 spatial streams, maybe some other chip
has 4.
Correct the TX power index and TX power limit calculations for 3SS and
4SS HT/VHT rates.
With this the RTL8814AU can set the TX power correctly.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/d0c0e126-0794-4c4e-9203-ea39a707b673@gmail.com
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It fits the meaning of the enum better.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/5a1c5a46-8ebb-43b0-9ab1-b78e2a22b3d2@gmail.com
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These structs and arrays are never modified, so make them const:
rtw_band_2ghz
rtw_band_5ghz
rtw_pci_tx_queue_idx_addr
rtw_pci_ops
rtw_cck_rates
rtw_ofdm_rates
rtw_ht_1s_rates
rtw_ht_2s_rates
rtw_vht_1s_rates
rtw_vht_2s_rates
rtw_rate_section
rtw_rate_size
rtw_sdio_ops
rtw_usb_ops
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/502f124e-ccf3-4c09-80a4-1e5c5304822b@gmail.com
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The existing code is suitable for chips with up to 2 spatial streams.
Inform the firmware about the rates it's allowed to use when
transmitting 3 spatial streams.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/08e2f328-1aab-4e50-93ac-c1e5dd9541ac@gmail.com
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These members of struct rtw_chip_info each have a size of 2. Increase
their size to 4, which is the number of RF paths the RTL8814AU has.
This is required to read and write the RF registers of the RTL8814AU.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/7a4d8209-b8af-4943-b5de-f53d6edf591a@gmail.com
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Currently this struct has the members required for chips with 2 RF
paths. Add more members to support chips with 4 RF paths, like the
RTL8814AU.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/be5a73f4-a0fe-43d6-9457-930cde199284@gmail.com
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After the firmware is uploaded, download_firmware_validate() checks some
bits in REG_MCUFW_CTRL to see if everything went okay. The
RTL8814AU power on sequence sets bits 13 and 12 to 2, which this
function does not expect, so it thinks the firmware upload failed.
Make download_firmware_validate() ignore bits 13 and 12.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/049d2887-22fc-47b7-9e59-62627cb525f8@gmail.com
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Don't call ltecoex_read_reg() and ltecoex_reg_write() when the
ltecoex_addr member of struct rtw_chip_info is NULL. The RTL8814AU
doesn't have this feature.
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/55b5641f-094e-4f94-9f79-ac053733f2cf@gmail.com
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There is a typo in debug messages:
- afer -> after
Fix it via codespell.
Signed-off-by: Andrew Kreimer <algonell@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250203180913.5435-1-algonell@gmail.com
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Since there are two function features for now, func_bitmap[] has single
one element, which BITMAP_FROM_U64() generating two elements is exceeded.
Change to assign function bitmap barely.
With i386-allmodconfig (a 32 bit system), it throws
>> include/linux/bitmap.h:736:33: warning: excess elements in array initializer
736 | ((unsigned long) ((u64)(n) >> 32))
| ^
drivers/net/wireless/realtek/rtw89/regd.c:16:34: note: in expansion of macro 'BITMAP_FROM_U64'
16 | .func_bitmap = { BITMAP_FROM_U64(_fmap), }, \
| ^~~~~~~~~~~~~~~
drivers/net/wireless/realtek/rtw89/regd.c:20:9: note: in expansion of macro 'COUNTRY_REGD'
20 | COUNTRY_REGD("00", RTW89_WW, RTW89_WW, RTW89_WW, 0x0);
| ^~~~~~~~~~~~
Fixes: 79a36fc56bea ("wifi: rtw89: regd: handle supported regulatory functions by country")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202502031932.BMQ4lhJT-lkp@intel.com/
Cc: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250205014051.13765-1-pkshih@realtek.com
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Refine the TWS Bluetooth related coexistence mechanism.
Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250205013233.10945-4-pkshih@realtek.com
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The TWS(True wireless stereo) serials Bluetooth audio device need to keep
packet traffic not only with DUT, it also need to synchronize packet with
its assistant earbud. And all the BR/EDR Bluetooth device need to do page
scan to keep re-connect event sensitively between different DUT.
These behavior will make TWS Bluetooth device cost more time slot to keep
the good audio performance. This patch decrease half of Wi-Fi slot(from
40ms to 20ms) in a single cycle. Make the slot more flexible to prevent
audio lag. The single cycle will be shorter, then it will bring some slot
protection cost make Wi-Fi throughput decrease about 5%.
Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250205013233.10945-3-pkshih@realtek.com
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If the slot duration is 0, the firmware timer will trigger timer hang at
the timer initializing state in a low rate due to hardware algorithm.
Signed-off-by: Ching-Te Ku <ku920601@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250205013233.10945-2-pkshih@realtek.com
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To access firmware elements appended after multi-firmware, add its size
as offset to get start address of firmware elements.
+-----+-------+------+---------+--------------+ --
| sig | fw_nr | rsvd | version | reserved | \
+---------------------------------------------+ |
fw 0 | cv | type | mp | rsvd | shift | size | rsvd | |
+---------------------------------------------+ |
fw 1 | cv | type | mp | rsvd | shift | size | rsvd | |
+---------------------------------------------+ |
fw N-1 | ... | |
+=============================================+ | mfw size
| fw 0 content | |
+=============================================+ |
| fw 1 content | |
+=============================================+ |
| ... | |
+=============================================+ |
| fw N -1 content | |
+=============================================+ --/
| fw element TLV X |
+=============================================+
| fw element TLV Y |
+=============================================+
| fw element TLV Z |
+=============================================+
To avoid Coverity warning when getting mfw size, validate it header ahead.
Addresses-Coverity-ID: 1544385 ("Untrusted array index read")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250203072911.47313-5-pkshih@realtek.com
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A firmeware file contains multi-firmware with a header to represent
contents. The mfw_hdr->fw_nr is to define number of firmware in file.
+-----+-------+------+---------+--------------+
| sig | fw_nr | rsvd | version | reserved |
+---------------------------------------------+ --
fw 0 | cv | type | mp | rsvd | shift | size | rsvd | \
+---------------------------------------------+ |
fw 1 | cv | type | mp | rsvd | shift | size | rsvd | | mfw_hdr->fw_nr
+---------------------------------------------+ |
fw N-1 | ... | /
+=============================================+ --
| fw 0 content |
| (pointed by fw0 shift/size) |
+=============================================+
To avoid Coverity warning, validate header is in range of firmware size,
and also validate the range of actual firmware content is in range.
Addresses-Coverity-ID: 1494046 ("Untrusted loop bound")
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250203072911.47313-4-pkshih@realtek.com
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Adding beacon BW offset, OP1dB table and rfe_type to lps_ml_cmn_info.
These information will help FW to configure RX more accurately.
Signed-off-by: Eric Huang <echuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250203072911.47313-3-pkshih@realtek.com
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Driver selects firmware by hardware version, which normally can be read
from registers before selecting firmware. However, certain chips such as
RTL8851B, it needs to read hardware version from efuse while doing
power_on, but do power_on after selecting firmware in current flow.
To resolve this flow problem, move power_on out from
rtw89_mac_partial_init(), and call rtw89_mac_pwr_on() separately at
proper places to have expected flow.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250203072911.47313-2-pkshih@realtek.com
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Occasionally there is an EPROTO error during firmware download.
This error is converted to EAGAIN in the download function.
But nobody tries again and so device probe fails.
Implement download retry to fix this.
This error was observed (and fix tested) on a tbs2910 board [1]
with an embedded RTL8188EU (0bda:8179) device behind a USB hub.
[1] arch/arm/boot/dts/nxp/imx/imx6q-tbs2910.dts
Signed-off-by: Soeren Moch <smoch@web.de>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250127194828.599379-1-smoch@web.de
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rtw8821c_set_tx_power_index_by_rate
Some users want to plug two identical USB devices at the same time.
This static variable could theoretically cause them to use incorrect
TX power values.
Move the variable to the caller and pass a pointer to it to
rtw8821c_set_tx_power_index_by_rate().
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/fe42858c-9b9f-4f03-9aaa-737472c2cd90@gmail.com
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rtw8822b_set_tx_power_index_by_rate
Some users want to plug two identical USB devices at the same time.
This static variable could theoretically cause them to use incorrect
TX power values.
Move the variable to the caller and pass a pointer to it to
rtw8822b_set_tx_power_index_by_rate().
Signed-off-by: Bitterblue Smith <rtl8821cerfe2@gmail.com>
Acked-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/8a60f581-0ab5-4d98-a97d-dd83b605008f@gmail.com
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This allows the driver to be used in wireless access point mode on the
AT91SAM9G25-based GARDENA smart Gateway.
Unfortunately, the data throughput in AP mode appears to be lower than
with the vendor driver (or in STA mode). Especially when sending, the
data rate is significantly lower. My measurements performed with iperf3
and an Edimax EW-7811Un (VID: 7392, PID: 7811) showed a maximum TX rate
of about 4 Mbits/sec compared to the ~24 Mbits/sec measured with the
rtl8192cu driver.
Although the performance might be good enough for our use case, this is
something that should be further looked into.
Signed-off-by: Ezra Buehler <ezra.buehler@husqvarnagroup.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122071512.10165-1-ezra@easyb.ch
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Except probe/remove flow, the consumers of early_h2c list are interface
start and debugfs. There must be no race between probe/remove flow and
interface start. The failed probe flow is to free early_h2c list as well
as remove flow, at these two moments debugfs doesn't present. Thus, it is
safe to free early_h2c list without held wiphy_lock in these situations.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122060310.31976-11-pkshih@realtek.com
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No consumers of driver mutex now, so remove definition eventually.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122060310.31976-10-pkshih@realtek.com
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With spatch script, already remove most driver mutex and generate
lockdep_assert_wiphy(), and some are needed to refine manually further to
be expected:
- lockdep_assert_wiphy() always be the first statement in function
- return directly rather than unnecessary goto
- change assert from mutex to wiphy lock, which script can't convert
automatically.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122060310.31976-9-pkshih@realtek.com
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All need lock have taken both driver mutex and wiphy lock, so we can remove
driver mutex safely by below spatch script. Also, check every
lockdep_assert_wiphy() is executed without locks warning at runtime.
@ rule1_1 @
@@
- lockdep_assert_held(&rtwdev->mutex);
+ lockdep_assert_wiphy(rtwdev->hw->wiphy);
@ rule1_2 @
@@
- guard(mutex)(&rtwdev->mutex);
+ lockdep_assert_wiphy(rtwdev->hw->wiphy);
@ rule2_1 @
@@
- mutex_lock(&rtwdev->mutex);
+ lockdep_assert_wiphy(rtwdev->hw->wiphy);
...
- mutex_unlock(&rtwdev->mutex);
@ rule2_2 @
@@
- mutex_unlock(&rtwdev->mutex);
+ lockdep_assert_wiphy(rtwdev->hw->wiphy);
...
- mutex_lock(&rtwdev->mutex);
@ rule3_1 @
type t;
identifier fn;
@@
t fn(struct wiphy *wiphy, ...)
{
...
- lockdep_assert_wiphy(rtwdev->hw->wiphy);
+ lockdep_assert_wiphy(wiphy);
...
}
@ rule3_1_1 @
type t;
identifier fn;
@@
t fn(...)
{
...
struct wiphy *wiphy = ...;
...
- lockdep_assert_wiphy(rtwdev->hw->wiphy);
+ lockdep_assert_wiphy(wiphy);
...
}
@ rule3_2 @
type t;
identifier fn;
@@
t fn(struct ieee80211_hw *hw, ...)
{
...
- lockdep_assert_wiphy(rtwdev->hw->wiphy);
+ lockdep_assert_wiphy(hw->wiphy);
...
}
@ rule3_2_1 @
type t;
identifier fn;
@@
t fn(...)
{
...
struct ieee80211_hw *hw = ...;
...
- lockdep_assert_wiphy(rtwdev->hw->wiphy);
+ lockdep_assert_wiphy(hw->wiphy);
...
}
The compiler warnings will be fixed manually by latter patch:
rtw89/mac80211.c:371:1: warning: statement expected after label
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122060310.31976-8-pkshih@realtek.com
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With this change, the object code size can reduce 768 bytes.
text data bss dec hex filename
77257 4262 4 81523 13e73 debug.o (before)
76489 4262 4 80755 13b73 debug.o (after)
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122060310.31976-7-pkshih@realtek.com
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If a debugfs entry takes driver mutex now, let it uses
wiphy_locked_debugfs_{read,write}() to take both driver mutex and
wiphy lock. Add rwlock option to support this.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122060310.31976-6-pkshih@realtek.com
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reading
Some debufs entries need output buffer over default size 4K. Since reading
of many debugfs entries is to access IO, it costs time to dynamically
re-allocate larger buffer and access IO again and again. Add an option to
specify the size it needs.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122060310.31976-5-pkshih@realtek.com
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Since debugfs needs wiphy lock held, wiphy_locked_debugfs_{read,write}()
will be adopted, so implmenet file_ops::read/write along with their
arguments.
For reading part, it needs lots of changes because seq_file is not
suitable for wiphy_locked_debugfs_{read,write}(), so use spatch script
below to convert basically, and manually implement the functions.
@ rule1 @
identifier m;
@@
- seq_printf(m,
+ p += scnprintf(p, end - p,
...)
@ rule2 @
identifier m;
@@
- seq_puts(m,
+ p += scnprintf(p, end - p,
...)
For current version, only 4K buffer to output. To note ourselves, add
ellipsis symbol "..." to trailing if buffer is full. Later, add an option
to specify buffer size needed by a debugfs entry.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122060310.31976-4-pkshih@realtek.com
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For certain works protected by driver mutex, use wiphy_work() directly
to have wiphy lock held naturally. Then every this kind of works is
protected by both wiphy lock and driver mutex.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122060310.31976-3-pkshih@realtek.com
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To ensure where are protected by driver mutex can also be protected by
wiphy_lock(), so afterward we can remove driver mutex safely.
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20250122060310.31976-2-pkshih@realtek.com
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