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  1. 30 3月, 2021 11 次提交
  3. 29 3月, 2021 16 次提交
  5. 27 3月, 2021 13 次提交
    • L
      farsync: use DEFINE_SPINLOCK() for spinlock · a1281601
      由 Liu Jian 提交于 
      spinlock can be initialized automatically with DEFINE_SPINLOCK()
rather than explicitly calling spin_lock_init().
Reported-by: NHulk Robot <hulkci@huawei.com>
Signed-off-by: NLiu Jian <liujian56@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      a1281601
    • M
      net: stmmac: Fix kernel panic due to NULL pointer dereference of fpe_cfg · 63c173ff
      由 Mohammad Athari Bin Ismail 提交于 
      In this patch, "net: stmmac: support FPE link partner hand-shaking
procedure", priv->plat->fpe_cfg wouldn`t be "devm_kzalloc"ed if
dma_cap->frpsel is 0 (Flexible Rx Parser is not supported in SoC) in
tc_init(). So, fpe_cfg will be remain as NULL and accessing it will cause
kernel panic.

To fix this, move the "devm_kzalloc"ing of priv->plat->fpe_cfg before
dma_cap->frpsel checking in tc_init(). Additionally, checking of
priv->dma_cap.fpesel is added before calling stmmac_fpe_link_state_handle()
as only FPE supported SoC is allowed to call the function.

Below is the kernel panic dump reported by Marek Szyprowski
<m.szyprowski@samsung.com>:

meson8b-dwmac ff3f0000.ethernet eth0: PHY [0.0:00] driver [RTL8211F Gigabit Ethernet] (irq=35)
meson8b-dwmac ff3f0000.ethernet eth0: No Safety Features support found
meson8b-dwmac ff3f0000.ethernet eth0: PTP not supported by HW
meson8b-dwmac ff3f0000.ethernet eth0: configuring for phy/rgmii link mode
Unable to handle kernel NULL pointer dereference at virtual address 0000000000000001
Mem abort info:
...
user pgtable: 4k pages, 48-bit VAs, pgdp=00000000044eb000
[0000000000000001] pgd=0000000000000000, p4d=0000000000000000
Internal error: Oops: 96000004 [#1] PREEMPT SMP
Modules linked in: dw_hdmi_i2s_audio dw_hdmi_cec meson_gxl realtek meson_gxbb_wdt snd_soc_meson_axg_sound_card dwmac_generic axg_audio meson_dw_hdmi crct10dif_ce snd_soc_meson_card_utils snd_soc_meson_axg_tdmout panfrost rc_odroid gpu_sched reset_meson_audio_arb meson_ir snd_soc_meson_g12a_tohdmitx snd_soc_meson_axg_frddr sclk_div clk_phase snd_soc_meson_codec_glue dwmac_meson8b snd_soc_meson_axg_fifo stmmac_platform meson_rng meson_drm stmmac rtc_meson_vrtc rng_core meson_canvas pwm_meson dw_hdmi mdio_mux_meson_g12a pcs_xpcs snd_soc_meson_axg_tdm_interface snd_soc_meson_axg_tdm_formatter nvmem_meson_efuse display_connector
CPU: 1 PID: 7 Comm: kworker/u8:0 Not tainted 5.12.0-rc4-next-20210325+
Hardware name: Hardkernel ODROID-C4 (DT)
Workqueue: events_power_efficient phylink_resolve
pstate: 20400009 (nzCv daif +PAN -UAO -TCO BTYPE=--)
pc : stmmac_mac_link_up+0x14c/0x348 [stmmac]
lr : stmmac_mac_link_up+0x284/0x348 [stmmac] ...
Call trace:
 stmmac_mac_link_up+0x14c/0x348 [stmmac]
 phylink_resolve+0x104/0x420
 process_one_work+0x2a8/0x718
 worker_thread+0x48/0x460
 kthread+0x134/0x160
 ret_from_fork+0x10/0x18
Code: b971ba60 350007c0 f958c260 f9402000 (39400401)
---[ end trace 0c9deb6c510228aa ]---

Fixes: 5a558611 ("net: stmmac: support FPE link partner hand-shaking
procedure")
Reported-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NMohammad Athari Bin Ismail <mohammad.athari.ismail@intel.com>
Tested-by: NMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      63c173ff
    • X
      net: ethernet: remove duplicated include · aeab5cfb
      由 Xu Jia 提交于 
      Remove duplicated include from mtk_ppe_offload.c.
Reported-by: NHulk Robot <hulkci@huawei.com>
Signed-off-by: NXu Jia <xujia39@huawei.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      aeab5cfb
    • R
      net: axienet: Enable more clocks · b11bfb9a
      由 Robert Hancock 提交于 
      This driver was only enabling the first clock on the device, regardless
of its name. However, this controller logic can have multiple clocks
which should all be enabled. Add support for enabling additional clocks.
The clock names used are matching those used in the Xilinx version of this
driver as well as the Xilinx device tree generator, except for mgt_clk
which is not present there.

For backward compatibility, if no named clocks are present, the first
clock present is used for determining the MDIO bus clock divider.
Reviewed-by: NRadhey Shyam Pandey <radhey.shyam.pandey@xilinx.com>
Signed-off-by: NRobert Hancock <robert.hancock@calian.com>
Reviewed-by: NAndrew Lunn <andrew@lunn.ch>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      b11bfb9a
    • A
      net: ipa: support more than 6 resource groups · 3219953b
      由 Alex Elder 提交于 
      IPA versions 3.0 and 3.1 support up to 8 resource groups.  There is
some interest in supporting these older versions of the hardware, so
update the resource configuration code to program resource limits
for these groups if specified.
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      3219953b
    • A
      net: ipa: record number of groups in data · 4fd704b3
      由 Alex Elder 提交于 
      The arrays of source and destination resource limits defined in
configuration data are of a fixed size--which is the maximum number
of resource groups supported for any platform.  Most platforms will
use fewer than that many groups.

Add new members to the ipa_rsrc_group_id enumerated type to define
the number of source and destination resource groups are defined for
the platform.  (This type is defined for each platform in its data
file.)

Add a new field to the resource configuration data that indicates
how many of the source and destination resource groups are actually
used for the platform, and initialize it with the count value.  This
allows us to determine the number of groups defined for the platform
without exposing the ipa_rsrc_group_id enumerated type.

As a result, we no longer need ipa_resource_group_src_count()
and ipa_resource_group_dst_count(), because each platform now
defines its supported number of resource groups.  So get rid of
those two functions.
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4fd704b3
    • A
      net: ipa: pass data for source and dest resource config · 93c03729
      由 Alex Elder 提交于 
      Pass the resource data pointer to ipa_resource_config_src() and
ipa_resource_config_dst() to be used for configuring resource
limits.
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      93c03729
    • A
      net: ipa: combine source and destation resource types · 7336ce1a
      由 Alex Elder 提交于 
      The ipa_resource_src and ipa_resource_dst structures are identical
in form, so just replace them with a single structure.
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      7336ce1a
    • A
      net: ipa: combine source and destination group limits · d9d1cddf
      由 Alex Elder 提交于 
      Replace IPA_RESOURCE_GROUP_SRC_MAX and IPA_RESOURCE_GROUP_DST_MAX
with a single symbol, IPA_RESOURCE_GROUP_MAX.
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      d9d1cddf
    • A
      net: ipa: move ipa_resource_type definition · cf9a10bd
      由 Alex Elder 提交于 
      Most platforms have the same set of source and destination resource
types.  But some older platforms have some additional ones, and it's
possible different resources will be used in the future.

Move the definition of the ipa_resource_type enumerated type so it
is defined for each platform in its configuration data file.  This
permits each to have a distinct set of resources.

Shorten the data files slightly, by putting the min and max limit
values on the same line.
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      cf9a10bd
    • A
      net: ipa: index resource limits with type · 4bcfb35e
      由 Alex Elder 提交于 
      Remove the type field from the ipa_resource_src and ipa_resource_dst
structures, and instead use that value as the index into the arrays
of source and destination resources.

Change ipa_resource_config_src() and ipa_resource_config_dst() so
the resource type is passed in as an argument.
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      4bcfb35e
    • A
      net: ipa: combine resource type definitions · fd2b7bc3
      由 Alex Elder 提交于 
      Combine the ipa_resource_type_src and ipa_resource_type_dst
enumerated types into a single enumerated type, ipa_resource_type.

Assign value 0 to the first element for the source and destination
types, so their numeric values are preserved.  Add some additional
commentary where these are defined, stating explicitly that code
assumes the first source and first destination member must have
numeric value 0.

Fix the kerneldoc comments for the ipa_gsi_endpoint_data structure.
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      fd2b7bc3
    • A
      net: ipa: add some missing resource limits · 9ab7e728
      由 Alex Elder 提交于 
      Currently, the SDM845 configuration data defines resource limits for
the first two resource groups (for both source and destination
resource types).  The hardware supports additional resource groups,
and we should program the resource limits for those groups as well.

Even the "unused" destination resource group (number 2) should have
non-zero limits programmed in some cases, to ensure correct operation.

Add these missing resource group limit definitions to the SDM845
configuration data.
Signed-off-by: NAlex Elder <elder@linaro.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      9ab7e728