[PATCH v2 3/4] riscv: ptrace: Fix BIT() compilation issues

[Paul Walmsley]

On Mon, 9 Mar 2026, Charlie Jenkins via B4 Relay wrote:

> From: Charlie Jenkins <thecharlesjenkins at gmail.com>
> 
> BIT() is being used in ptrace.h without a definition, resulting in
> compilation errors in tools/testing/selftests/riscv/cfi/cfitests.c:
> 
> cfitests.c:101:60: error: implicit declaration of function ‘BIT’ [-Wimplicit-function-declaration]
>   101 |                      if ((cfi_reg.cfi_status.cfi_state & CFI_ENABLE_MASK) != CFI_ENABLE_MASK)
> 
> Include linux/bits.h to resolve this issue.
> 
> Fixes: 2af7c9cf021c ("riscv/ptrace: expose riscv CFI status and state via ptrace and in core files")
> Signed-off-by: Charlie Jenkins <thecharlesjenkins at gmail.com>

Thanks, queued for v7.0-rc.


- Paul