zink compilation failure mesa 21.1.0_rc2

System information

• OS: Gentoo
• GPU: 1e:00.0 VGA compatible controller [0300]: Advanced Micro Devices, Inc. [AMD/ATI] Navi 21 [Radeon RX 6800/6800 XT / 6900 XT] [1002:73bf] (rev c0)
• Kernel version: Linux msi-b450 5.10.27-gentoo #1 (closed) SMP PREEMPT Wed Mar 31 17:38:33 WEST 2021 x86_64 AMD Ryzen 7 2700X Eight-Core Processor AuthenticAMD GNU/Linux
• Mesa version: 21.1.0_rc2

Describe the issue

zink doesn't compile.

https://gitlab.freedesktop.org/mesa/mesa/-/blob/c40e1896b24cc47e960b56d8afb53f21be1c911b/src/gallium/drivers/zink/zink_resource.c#L1009

struct zink_context’ has no member named ‘flush_res’

Log files as attachment

partial output:

../mesa-21.1.0-rc2/src/gallium/drivers/zink/zink_resource.c: In function ‘zink_transfer_map’:
../mesa-21.1.0-rc2/src/gallium/drivers/zink/zink_resource.c:1009:29: error: ‘struct zink_context’ has no member named ‘flush_res’
 1009 |                scanout = ctx->flush_res;
      |                             ^~
../mesa-21.1.0-rc2/src/gallium/drivers/zink/zink_resource.c:1010:19: error: ‘struct zink_context’ has no member named ‘flush_res’
 1010 |                ctx->flush_res = res;
      |                   ^~
../mesa-21.1.0-rc2/src/gallium/drivers/zink/zink_resource.c:1016:19: error: ‘struct zink_context’ has no member named ‘flush_res’
 1016 |                ctx->flush_res = scanout;
      |                   ^~
../mesa-21.1.0-rc2/src/gallium/drivers/zink/zink_resource.c:1034:29: error: ‘struct zink_context’ has no member named ‘flush_res’
 1034 |                scanout = ctx->flush_res;
      |                             ^~
../mesa-21.1.0-rc2/src/gallium/drivers/zink/zink_resource.c:1035:19: error: ‘struct zink_context’ has no member named ‘flush_res’
 1035 |                ctx->flush_res = res;
      |                   ^~
../mesa-21.1.0-rc2/src/gallium/drivers/zink/zink_resource.c:1043:19: error: ‘struct zink_context’ has no member named ‘flush_res’
 1043 |                ctx->flush_res = scanout;
      |                   ^~

partial output:

 * ERROR: media-libs/mesa-21.1.0_rc2::gentoo failed (compile phase):
 *   ninja -v -j17 -l0 -C /var/tmp/portage/media-libs/mesa-21.1.0_rc2/work/mesa-21.1.0-rc2-abi_x86_32.x86 failed

If you think this is not the right place I will post it on Gentoo bug tracker.

Thanks.