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Author SHA1 Message Date
Wolfram Sang
8d3348b115 arm64: dts: renesas: r8a77990: Add SWDT node 
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250925093941.8800-20-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Wolfram Sang
5fb22fc1d0 arm64: dts: renesas: r8a77970: Add SWDT node 
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250925093941.8800-19-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Wolfram Sang
64d0f44a42 arm64: dts: renesas: r8a77965: Add SWDT node 
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250925093941.8800-18-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Wolfram Sang
adab61b448 arm64: dts: renesas: r8a77961: Add SWDT node 
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250925093941.8800-17-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Wolfram Sang
eb254eb1f4 arm64: dts: renesas: r8a77960: Add SWDT node 
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250925093941.8800-16-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Wolfram Sang
f8a66f7c5a arm64: dts: renesas: r8a77951: Add SWDT node 
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/20250925093941.8800-15-wsa+renesas@sang-engineering.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Kuninori Morimoto
db5a848a2c arm64: dts: renesas: r9a09g087: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87bjn08o7z.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Kuninori Morimoto
ad58d1078a arm64: dts: renesas: r9a09g077: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87cy7g8o83.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Kuninori Morimoto
098da100b3 arm64: dts: renesas: r9a09g057: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87ecrw8o87.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Kuninori Morimoto
e45e76a02b arm64: dts: renesas: r9a09g056: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87frcc8o8b.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Kuninori Morimoto
e57389d554 arm64: dts: renesas: r9a09g047: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87h5ws8o8g.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Kuninori Morimoto
0deef14e7e arm64: dts: renesas: r9a09g011: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87ikh88o8k.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Kuninori Morimoto
1342f314c4 arm64: dts: renesas: r9a08g045: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87jz1o8o8o.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:45 +01:00
Kuninori Morimoto
3a7b120a64 arm64: dts: renesas: r9a07g054: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87ldm48o8s.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
7f65d9f7c9 arm64: dts: renesas: r9a07g044: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87ms6k8o8x.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
3fbaac745e arm64: dts: renesas: r9a07g043u: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87o6r08o91.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
26564e4031 arm64: dts: renesas: r8a779h0: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87plbg8o96.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
7ba09f8b44 arm64: dts: renesas: r8a779g0: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87qzvw8o9v.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
c0811acfa6 arm64: dts: renesas: r8a779f0: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87segc8oa0.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
e82821bf63 arm64: dts: renesas: r8a779a0: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87tt0s8oa4.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
ac0db59999 arm64: dts: renesas: r8a77995: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87v7l88oa9.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
31fe8ed6ea arm64: dts: renesas: r8a77990: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87wm5o8oae.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
ee578ced71 arm64: dts: renesas: r8a77980: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87y0q48oaj.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
26bed1290c arm64: dts: renesas: r8a77970: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87zfak8oap.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
7b71ddcf5d arm64: dts: renesas: r8a77965: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/871pnwa2vb.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
7b76c923f5 arm64: dts: renesas: r8a77961: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87348ca2vi.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
157acc5043 arm64: dts: renesas: r8a77960: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/874issa2vn.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
e281af623d arm64: dts: renesas: r8a77951: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/875xd8a2vs.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
a17efe3ea0 arm64: dts: renesas: r8a774e1: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/877bxoa2vy.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
734b69c420 arm64: dts: renesas: r8a774c0: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/878qi4a2w4.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
9ac98796cd arm64: dts: renesas: r8a774b1: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87a52ka2wa.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Kuninori Morimoto
ef3db38c5d arm64: dts: renesas: r8a774a1: Move interrupt-parent to root node 
Move the "interrupt-parent = <&gic>" property from the soc node to the
root node, and simplify "interrupts-extended = <&gic ...>" to
"interrupts = <...>".

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87bjn0a2wk.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Hai Pham
ad142a4ef7 arm64: dts: renesas: r8a78000: Add initial Ironhide board support 
Add initial support for the Renesas Ironhide board, which is based on
the R-Car X5H (R8A78000) SoC.

Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Vinh Nguyen <vinh.nguyen.xz@renesas.com>
Signed-off-by: Takeshi Kihara <takeshi.kihara.df@renesas.com>
Signed-off-by: Khanh Le <khanh.le.xr@renesas.com>
Signed-off-by: Huy Bui <huy.bui.wm@renesas.com>
Signed-off-by: Phong Hoang <phong.hoang.wz@renesas.com>
[Kuninori: tidyup for upstreaming]
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87ecrwa3fj.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Hai Pham
63500d12cf arm64: dts: renesas: Add R8A78000 SoC support 
Add initial support for the Renesas R-Car X5H (R8A78000) SoC.

Signed-off-by: Hai Pham <hai.pham.ud@renesas.com>
Signed-off-by: Vinh Nguyen <vinh.nguyen.xz@renesas.com>
Signed-off-by: Minh Le <minh.le.aj@renesas.com>
Signed-off-by: Huy Bui <huy.bui.wm@renesas.com>
Signed-off-by: Khanh Le <khanh.le.xr@renesas.com>
Signed-off-by: Phong Hoang <phong.hoang.wz@renesas.com>
[Kuninori: tidyup for upstreaming]
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patch.msgid.link/87frcca3fn.wl-kuninori.morimoto.gx@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
 2025-10-28 09:23:44 +01:00
Icenowy Zheng
4f9ffd2c80 drm/ttm: add pgprot handling for RISC-V 
The RISC-V Svpbmt privileged extension provides support for overriding
page memory coherency attributes, and, along with vendor extensions like
Xtheadmae, supports pgprot_{writecombine,noncached} on RISC-V.

Adapt the codepath that maps ttm_write_combined to pgprot_writecombine
and ttm_noncached to pgprot_noncached to RISC-V, to allow proper page
access attributes.

Signed-off-by: Icenowy Zheng <uwu@icenowy.me>
Tested-by: Han Gao <rabenda.cn@gmail.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Link: https://lore.kernel.org/r/20251020053523.731353-1-uwu@icenowy.me
 2025-10-28 09:19:46 +01:00
Zhu Yanjun
503a5e4690 RDMA/rxe: Fix null deref on srq->rq.queue after resize failure 
A NULL pointer dereference can occur in rxe_srq_chk_attr() when
ibv_modify_srq() is invoked twice in succession under certain error
conditions. The first call may fail in rxe_queue_resize(), which leads
rxe_srq_from_attr() to set srq->rq.queue = NULL. The second call then
triggers a crash (null deref) when accessing
srq->rq.queue->buf->index_mask.

Call Trace:
<TASK>
rxe_modify_srq+0x170/0x480 [rdma_rxe]
? __pfx_rxe_modify_srq+0x10/0x10 [rdma_rxe]
? uverbs_try_lock_object+0x4f/0xa0 [ib_uverbs]
? rdma_lookup_get_uobject+0x1f0/0x380 [ib_uverbs]
ib_uverbs_modify_srq+0x204/0x290 [ib_uverbs]
? __pfx_ib_uverbs_modify_srq+0x10/0x10 [ib_uverbs]
? tryinc_node_nr_active+0xe6/0x150
? uverbs_fill_udata+0xed/0x4f0 [ib_uverbs]
ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x2c0/0x470 [ib_uverbs]
? __pfx_ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x10/0x10 [ib_uverbs]
? uverbs_fill_udata+0xed/0x4f0 [ib_uverbs]
ib_uverbs_run_method+0x55a/0x6e0 [ib_uverbs]
? __pfx_ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x10/0x10 [ib_uverbs]
ib_uverbs_cmd_verbs+0x54d/0x800 [ib_uverbs]
? __pfx_ib_uverbs_cmd_verbs+0x10/0x10 [ib_uverbs]
? __pfx___raw_spin_lock_irqsave+0x10/0x10
? __pfx_do_vfs_ioctl+0x10/0x10
? ioctl_has_perm.constprop.0.isra.0+0x2c7/0x4c0
? __pfx_ioctl_has_perm.constprop.0.isra.0+0x10/0x10
ib_uverbs_ioctl+0x13e/0x220 [ib_uverbs]
? __pfx_ib_uverbs_ioctl+0x10/0x10 [ib_uverbs]
__x64_sys_ioctl+0x138/0x1c0
do_syscall_64+0x82/0x250
? fdget_pos+0x58/0x4c0
? ksys_write+0xf3/0x1c0
? __pfx_ksys_write+0x10/0x10
? do_syscall_64+0xc8/0x250
? __pfx_vm_mmap_pgoff+0x10/0x10
? fget+0x173/0x230
? fput+0x2a/0x80
? ksys_mmap_pgoff+0x224/0x4c0
? do_syscall_64+0xc8/0x250
? do_user_addr_fault+0x37b/0xfe0
? clear_bhb_loop+0x50/0xa0
? clear_bhb_loop+0x50/0xa0
? clear_bhb_loop+0x50/0xa0
entry_SYSCALL_64_after_hwframe+0x76/0x7e

Fixes: 8700e3e7c4 ("Soft RoCE driver")
Tested-by: Liu Yi <asatsuyu.liu@gmail.com>
Signed-off-by: Zhu Yanjun <yanjun.zhu@linux.dev>
Link: https://patch.msgid.link/20251027215203.1321-1-yanjun.zhu@linux.dev
Signed-off-by: Leon Romanovsky <leon@kernel.org>
 2025-10-28 04:04:07 -04:00
Steffen Klassert
7197e080de Merge branch 'xfrm: IPsec hardware offload performance improvements' 
Jianbo Liu says:

====================
This patch series optimizes IPsec crypto offload performance by
addressing a lock contention bottleneck using RSS.

The first patch refactors the xfrm_input to avoid a costly
unlock/relock cycle.

The second patch builds on this by removing a redundant replay check,
which is unnecessary for the synchronous hardware path.
====================

Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
 2025-10-28 07:46:28 +01:00
Thorsten Blum
2e44856783 cpuidle: riscv-sbi: Replace deprecated strcpy in sbi_cpuidle_init_cpu 
strcpy() is deprecated; use strscpy() instead.

Link: https://github.com/KSPP/linux/issues/88
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://lore.kernel.org/r/20251021135155.1409-2-thorsten.blum@linux.dev
Signed-off-by: Paul Walmsley <pjw@kernel.org>
 2025-10-27 23:38:13 -06:00
Thorsten Blum
5228ed2c62 riscv: KGDB: Replace deprecated strcpy in kgdb_arch_handle_qxfer_pkt 
strcpy() is deprecated because it can cause a buffer overflow when the
sizes of the source and the destination are not known at compile time.
Use strscpy() instead.

Link: https://github.com/KSPP/linux/issues/88
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Link: https://lore.kernel.org/r/20251011004750.461954-1-thorsten.blum@linux.dev
Signed-off-by: Paul Walmsley <pjw@kernel.org>
 2025-10-27 23:30:01 -06:00
Jie Zhan
1971b18785 cpufreq: CPPC: Don't warn if FIE init fails to read counters 
During the CPPC FIE initialization, reading perf counters on offline cpus
should be expected to fail.  Don't warn on this case.

Also, change the error log level to debug since FIE is optional.

Co-developed-by: Bowen Yu <yubowen8@huawei.com>
Signed-off-by: Bowen Yu <yubowen8@huawei.com> # Changing loglevel to debug
Signed-off-by: Jie Zhan <zhanjie9@hisilicon.com>
[ Viresh: Added back the dropped comment. ]
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
 2025-10-28 10:40:47 +05:30
Miaoqian Lin
9600156bb9 cpufreq: nforce2: fix reference count leak in nforce2 
There are two reference count leaks in this driver:

1. In nforce2_fsb_read(): pci_get_subsys() increases the reference count
   of the PCI device, but pci_dev_put() is never called to release it,
   thus leaking the reference.

2. In nforce2_detect_chipset(): pci_get_subsys() gets a reference to the
   nforce2_dev which is stored in a global variable, but the reference
   is never released when the module is unloaded.

Fix both by:
- Adding pci_dev_put(nforce2_sub5) in nforce2_fsb_read() after reading
  the configuration.
- Adding pci_dev_put(nforce2_dev) in nforce2_exit() to release the
  global device reference.

Found via static analysis.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Signed-off-by: Miaoqian Lin <linmq006@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
 2025-10-28 10:28:13 +05:30
Fenglin Wu
74c2c1e0d0 arm64: dts: qcom: x1e80100-crd: Add charge limit nvmem 
Add nvmem cells for getting charge control thresholds if they have
been set previously.

Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on Thinkpad T14S OLED
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Signed-off-by: Fenglin Wu <fenglin.wu@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250919-qcom_battmgr_update_new-v6-1-ed5c38867614@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
 2025-10-27 22:45:39 -05:00
Loic Poulain
67445dc8a8 arm64: dts: qcom: qcm2290: Fix camss register prop ordering 
The qcm2290 CAMSS node has been applied from the V4 series, but a later
version changed the order of the register property, fix it to prevent
dtb check error.

Fixes: 2b3aef30dd ("arm64: dts: qcom: qcm2290: Add CAMSS node")
Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250918155456.1158691-1-loic.poulain@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
 2025-10-27 22:45:02 -05:00
Pankaj Patil
6d49c6ede8 dt-bindings: firmware: qcom,scm: Document Glymur scm 
Document the SCM compatible for Qualcomm Glymur SoC.
Secure Channel Manager(SCM) is used to communicate
with secure firmware.

Signed-off-by: Pankaj Patil <pankaj.patil@oss.qualcomm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250918141738.2524269-1-pankaj.patil@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
 2025-10-27 22:43:51 -05:00
Yu Zhang(Yuriy)
7cb69f8970 arm64: dts: qcom: qcs615-ride: Set drive strength for wlan-en-state pin 
Set the drive-strength to 16mA for gpio98 used as wlan-en-state in the
QCS615 ride platform device tree. This ensures sufficient output
strength for controlling the WLAN enable signal reliably.

Signed-off-by: Yu Zhang (Yuriy) <yu.zhang@oss.qualcomm.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250918112729.3512516-1-yu.zhang@oss.qualcomm.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
 2025-10-27 22:43:40 -05:00
Aleksandrs Vinarskis
b54c412b51 arm64: dts: qcom: sc8280xp-x13s: enable camera privacy indicator 
Leverage newly introduced 'leds' and 'led-names' properties to pass
indicator's phandle and function to v4l2 subnode. The latter supports
privacy led since couple of years ago under 'privacy-led' designation.
Unlike initially proposed trigger-source based approach, this solution
cannot be easily bypassed from userspace, thus reducing privacy
concerns.

Signed-off-by: Aleksandrs Vinarskis <alex@vinarskis.com>
Tested-by: Steev Klimaszewski <threeway@gmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20250910-leds-v5-4-bb90a0f897d5@vinarskis.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
 2025-10-27 22:39:34 -05:00
Xu Kuohai
f9db3a3822 selftests/bpf/benchs: Add overwrite mode benchmark for BPF ring buffer 
Add --rb-overwrite option to benchmark BPF ring buffer in overwrite mode.
Since overwrite mode is not yet supported by libbpf for consumer, also add
--rb-bench-producer option to benchmark producer directly without a consumer.

Benchmarks on an x86_64 and an arm64 CPU are shown below for reference.

- AMD EPYC 9654 (x86_64)

Ringbuf, multi-producer contention in overwrite mode, no consumer
=================================================================
rb-prod nr_prod 1    32.180 ± 0.033M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 2    9.617 ± 0.003M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 3    8.810 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 4    9.272 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 8    9.173 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 12   3.086 ± 0.032M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 16   2.945 ± 0.021M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 20   2.519 ± 0.021M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 24   2.545 ± 0.021M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 28   2.363 ± 0.024M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 32   2.357 ± 0.021M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 36   2.267 ± 0.011M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 40   2.284 ± 0.020M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 44   2.215 ± 0.025M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 48   2.193 ± 0.023M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 52   2.208 ± 0.024M/s (drops 0.000 ± 0.000M/s)

- HiSilicon Kunpeng 920 (arm64)

Ringbuf, multi-producer contention in overwrite mode, no consumer
=================================================================
rb-prod nr_prod 1    14.478 ± 0.006M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 2    21.787 ± 0.010M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 3    6.045 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 4    5.352 ± 0.003M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 8    4.850 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 12   3.542 ± 0.016M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 16   3.509 ± 0.021M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 20   3.171 ± 0.010M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 24   3.154 ± 0.014M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 28   2.974 ± 0.015M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 32   3.167 ± 0.014M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 36   2.903 ± 0.010M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 40   2.866 ± 0.010M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 44   2.914 ± 0.010M/s (drops 0.000 ± 0.000M/s)
rb-prod nr_prod 48   2.806 ± 0.012M/s (drops 0.000 ± 0.000M/s)
Rb-prod nr_prod 52   2.840 ± 0.012M/s (drops 0.000 ± 0.000M/s)

Signed-off-by: Xu Kuohai <xukuohai@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20251018035738.4039621-4-xukuohai@huaweicloud.com
 2025-10-27 19:47:32 -07:00
Xu Kuohai
8f7a86ecde selftests/bpf: Add overwrite mode test for BPF ring buffer 
Add overwrite mode test for BPF ring buffer. The test creates a BPF ring
buffer in overwrite mode, then repeatedly reserves and commits records
to check if the ring buffer works as expected both before and after
overwriting occurs.

Signed-off-by: Xu Kuohai <xukuohai@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20251018035738.4039621-3-xukuohai@huaweicloud.com
 2025-10-27 19:46:32 -07:00
Xu Kuohai
feeaf1346f bpf: Add overwrite mode for BPF ring buffer 
When the BPF ring buffer is full, a new event cannot be recorded until one
or more old events are consumed to make enough space for it. In cases such
as fault diagnostics, where recent events are more useful than older ones,
this mechanism may lead to critical events being lost.

So add overwrite mode for BPF ring buffer to address it. In this mode, the
new event overwrites the oldest event when the buffer is full.

The basic idea is as follows:

1. producer_pos tracks the next position to record new event. When there
   is enough free space, producer_pos is simply advanced by producer to
   make space for the new event.

2. To avoid waiting for consumer when the buffer is full, a new variable,
   overwrite_pos, is introduced for producer. It points to the oldest event
   committed in the buffer. It is advanced by producer to discard one or more
   oldest events to make space for the new event when the buffer is full.

3. pending_pos tracks the oldest event to be committed. pending_pos is never
   passed by producer_pos, so multiple producers never write to the same
   position at the same time.

The following example diagrams show how it works in a 4096-byte ring buffer.

1. At first, {producer,overwrite,pending,consumer}_pos are all set to 0.

   0       512      1024    1536     2048     2560     3072     3584       4096
   +-----------------------------------------------------------------------+
   |                                                                       |
   |                                                                       |
   |                                                                       |
   +-----------------------------------------------------------------------+
   ^
   |
   |
producer_pos = 0
overwrite_pos = 0
pending_pos = 0
consumer_pos = 0

2. Now reserve a 512-byte event A.

   There is enough free space, so A is allocated at offset 0. And producer_pos
   is advanced to 512, the end of A. Since A is not submitted, the BUSY bit is
   set.

   0       512      1024    1536     2048     2560     3072     3584       4096
   +-----------------------------------------------------------------------+
   |        |                                                              |
   |   A    |                                                              |
   | [BUSY] |                                                              |
   +-----------------------------------------------------------------------+
   ^        ^
   |        |
   |        |
   |    producer_pos = 512
   |
overwrite_pos = 0
pending_pos = 0
consumer_pos = 0

3. Reserve event B, size 1024.

   B is allocated at offset 512 with BUSY bit set, and producer_pos is advanced
   to the end of B.

   0       512      1024    1536     2048     2560     3072     3584       4096
   +-----------------------------------------------------------------------+
   |        |                 |                                            |
   |   A    |        B        |                                            |
   | [BUSY] |      [BUSY]     |                                            |
   +-----------------------------------------------------------------------+
   ^                          ^
   |                          |
   |                          |
   |                   producer_pos = 1536
   |
overwrite_pos = 0
pending_pos = 0
consumer_pos = 0

4. Reserve event C, size 2048.

   C is allocated at offset 1536, and producer_pos is advanced to 3584.

   0       512      1024    1536     2048     2560     3072     3584       4096
   +-----------------------------------------------------------------------+
   |        |                 |                                   |        |
   |    A   |        B        |                 C                 |        |
   | [BUSY] |      [BUSY]     |               [BUSY]              |        |
   +-----------------------------------------------------------------------+
   ^                                                              ^
   |                                                              |
   |                                                              |
   |                                                    producer_pos = 3584
   |
overwrite_pos = 0
pending_pos = 0
consumer_pos = 0

5. Submit event A.

   The BUSY bit of A is cleared. B becomes the oldest event to be committed, so
   pending_pos is advanced to 512, the start of B.

   0       512      1024    1536     2048     2560     3072     3584       4096
   +-----------------------------------------------------------------------+
   |        |                 |                                   |        |
   |    A   |        B        |                 C                 |        |
   |        |      [BUSY]     |               [BUSY]              |        |
   +-----------------------------------------------------------------------+
   ^        ^                                                     ^
   |        |                                                     |
   |        |                                                     |
   |   pending_pos = 512                                  producer_pos = 3584
   |
overwrite_pos = 0
consumer_pos = 0

6. Submit event B.

   The BUSY bit of B is cleared, and pending_pos is advanced to the start of C,
   which is now the oldest event to be committed.

   0       512      1024    1536     2048     2560     3072     3584       4096
   +-----------------------------------------------------------------------+
   |        |                 |                                   |        |
   |    A   |        B        |                 C                 |        |
   |        |                 |               [BUSY]              |        |
   +-----------------------------------------------------------------------+
   ^                          ^                                   ^
   |                          |                                   |
   |                          |                                   |
   |                     pending_pos = 1536               producer_pos = 3584
   |
overwrite_pos = 0
consumer_pos = 0

7. Reserve event D, size 1536 (3 * 512).

   There are 2048 bytes not being written between producer_pos (currently 3584)
   and pending_pos, so D is allocated at offset 3584, and producer_pos is advanced
   by 1536 (from 3584 to 5120).

   Since event D will overwrite all bytes of event A and the first 512 bytes of
   event B, overwrite_pos is advanced to the start of event C, the oldest event
   that is not overwritten.

   0       512      1024    1536     2048     2560     3072     3584       4096
   +-----------------------------------------------------------------------+
   |                 |        |                                   |        |
   |      D End      |        |                 C                 | D Begin|
   |      [BUSY]     |        |               [BUSY]              | [BUSY] |
   +-----------------------------------------------------------------------+
   ^                 ^        ^
   |                 |        |
   |                 |   pending_pos = 1536
   |                 |   overwrite_pos = 1536
   |                 |
   |             producer_pos=5120
   |
consumer_pos = 0

8. Reserve event E, size 1024.

   Although there are 512 bytes not being written between producer_pos and
   pending_pos, E cannot be reserved, as it would overwrite the first 512
   bytes of event C, which is still being written.

9. Submit event C and D.

   pending_pos is advanced to the end of D.

   0       512      1024    1536     2048     2560     3072     3584       4096
   +-----------------------------------------------------------------------+
   |                 |        |                                   |        |
   |      D End      |        |                 C                 | D Begin|
   |                 |        |                                   |        |
   +-----------------------------------------------------------------------+
   ^                 ^        ^
   |                 |        |
   |                 |   overwrite_pos = 1536
   |                 |
   |             producer_pos=5120
   |             pending_pos=5120
   |
consumer_pos = 0

The performance data for overwrite mode will be provided in a follow-up
patch that adds overwrite-mode benchmarks.

A sample of performance data for non-overwrite mode, collected on an x86_64
CPU and an arm64 CPU, before and after this patch, is shown below. As we can
see, no obvious performance regression occurs.

- x86_64 (AMD EPYC 9654)

Before:

Ringbuf, multi-producer contention
==================================
rb-libbpf nr_prod 1  11.623 ± 0.027M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 2  15.812 ± 0.014M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 3  7.871 ± 0.003M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 4  6.703 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 8  2.896 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 12 2.054 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 16 1.864 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 20 1.580 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 24 1.484 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 28 1.369 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 32 1.316 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 36 1.272 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 40 1.239 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 44 1.226 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 48 1.213 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 52 1.193 ± 0.001M/s (drops 0.000 ± 0.000M/s)

After:

Ringbuf, multi-producer contention
==================================
rb-libbpf nr_prod 1  11.845 ± 0.036M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 2  15.889 ± 0.006M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 3  8.155 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 4  6.708 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 8  2.918 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 12 2.065 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 16 1.870 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 20 1.582 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 24 1.482 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 28 1.372 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 32 1.323 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 36 1.264 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 40 1.236 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 44 1.209 ± 0.002M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 48 1.189 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 52 1.165 ± 0.002M/s (drops 0.000 ± 0.000M/s)

- arm64 (HiSilicon Kunpeng 920)

Before:

Ringbuf, multi-producer contention
==================================
rb-libbpf nr_prod 1  11.310 ± 0.623M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 2  9.947 ± 0.004M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 3  6.634 ± 0.011M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 4  4.502 ± 0.003M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 8  3.888 ± 0.003M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 12 3.372 ± 0.005M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 16 3.189 ± 0.010M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 20 2.998 ± 0.006M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 24 3.086 ± 0.018M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 28 2.845 ± 0.004M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 32 2.815 ± 0.008M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 36 2.771 ± 0.009M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 40 2.814 ± 0.011M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 44 2.752 ± 0.006M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 48 2.695 ± 0.006M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 52 2.710 ± 0.006M/s (drops 0.000 ± 0.000M/s)

After:

Ringbuf, multi-producer contention
==================================
rb-libbpf nr_prod 1  11.283 ± 0.550M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 2  9.993 ± 0.003M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 3  6.898 ± 0.006M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 4  5.257 ± 0.001M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 8  3.830 ± 0.005M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 12 3.528 ± 0.013M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 16 3.265 ± 0.018M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 20 2.990 ± 0.007M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 24 2.929 ± 0.014M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 28 2.898 ± 0.010M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 32 2.818 ± 0.006M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 36 2.789 ± 0.012M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 40 2.770 ± 0.006M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 44 2.651 ± 0.007M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 48 2.669 ± 0.005M/s (drops 0.000 ± 0.000M/s)
rb-libbpf nr_prod 52 2.695 ± 0.009M/s (drops 0.000 ± 0.000M/s)

Signed-off-by: Xu Kuohai <xukuohai@huawei.com>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20251018035738.4039621-2-xukuohai@huaweicloud.com
 2025-10-27 19:42:39 -07:00
Jui-Peng Tsai
a62b654125 wifi: rtw89: improve scan time on 6 GHz band 
Reduce scan time for all supported channels from 4.4s to 3.5s.

If NL80211_SCAN_FLAG_COLOCATED_6GHZ is set in scan request, only scan PSC
channels and the channels from the RNR element found on the 2.4/5 GHz
channels. When firmware support parsing RNR element from received beacon
or probe response, offload the decision about non-PSC channels to firmware.
Driver do not need to fill non-PSC channels to scan list. If
NL80211_SCAN_FLAG_COLOCATED_6GHZ is not set, scan all supported channels.

Signed-off-by: Jui-Peng Tsai <emma_tsai@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://patch.msgid.link/20251021133402.15467-9-pkshih@realtek.com
 2025-10-28 09:52:57 +08:00