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The first patch removes declarations guarded by BEAMFORMING_SUPPORT, which is defined to 0, so they never reach the compiler. Preprocessing the driver confirms the symbols are absent from the preprocessed output. The second patch removes enums and defines left over from other Realtek chips that are not referenced anywhere in the driver. Compile-tested on x86. Rebuilding drivers/staging/rtl8723bs/ and comparing all 55 '.o' files against the pre-change build shows every object file is byte-for-byte identical. Adriano Cordova Adriano Cordova (2): staging: rtl8723bs: remove dead beamforming code staging: rtl8723bs: remove unused chip-type enums and defines drivers/staging/rtl8723bs/hal/odm.h | 9 --------- .../staging/rtl8723bs/hal/odm_DynamicTxPower.h | 1 - drivers/staging/rtl8723bs/hal/odm_precomp.h | 1 - drivers/staging/rtl8723bs/include/hal_phy.h | 16 ---------------- 4 files changed, 27 deletions(-) -- 2.51.0