sfc: fix CONFIG_CXL_MEM dependency

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A recent patch introduced a call to devm_cxl_probe_mem(), which is only
available when CXL_MEM is enabled. If CXL_MEM is in a loadable module,
this causes a link failure for a builtin driver:

s390-linux-ld: drivers/net/ethernet/sfc/efx_cxl.o: in function `efx_cxl_init':
efx_cxl.c:(.text+0x156): undefined reference to `devm_cxl_probe_mem'

Adapt the dependency to require CXL_MEM instead of CXL_BUS, which
we know is available when CXL_MEM is.

Fixes: 0418860ef2 ("sfc: obtain and map cxl range using devm_cxl_probe_mem")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Alejandro Lucero <alucerop@amd.com>
Link: https://patch.msgid.link/20260917155519.2121486-1-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

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Arnd Bergmann 2026-09-17 17:55:11 +02:00 • committed by Jakub Kicinski

parent 2fba931808

commit c6219deaee

1 changed files with 1 additions and 1 deletions

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drivers/net/ethernet/sfc/Kconfig

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