linux-kernel - mips maltaup_xpa_defconfig build failure with clang

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Date:   Tue, 2 Aug 2022 17:35:47 +0100
From:   "Sudip Mukherjee (Codethink)" <sudipm.mukherjee@...il.com>
To:     Nathan Chancellor <nathan@...nel.org>,
        Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
        "Maciej W. Rozycki" <macro@...am.me.uk>
Cc:     linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org,
        torvalds@...ux-foundation.org,
        clang-built-linux <llvm@...ts.linux.dev>
Subject: mips maltaup_xpa_defconfig build failure with clang

Hi All,

Not sure if it has been reported, mips maltaup_xpa_defconfig fails to
build with clang with the error:

arch/mips/mm/tlbex.c:629:24: error: converting the result of '<<' to a boolean; did you mean '(1 << _PAGE_NO_EXEC_SHIFT) != 0'? [-Werror,-Wint-in-bool-context]
        if (cpu_has_rixi && !!_PAGE_NO_EXEC) {
                              ^
./arch/mips/include/asm/pgtable-bits.h:174:28: note: expanded from macro '_PAGE_NO_EXEC'
# define _PAGE_NO_EXEC          (1 << _PAGE_NO_EXEC_SHIFT)
                                   ^
arch/mips/mm/tlbex.c:2568:24: error: converting the result of '<<' to a boolean; did you mean '(1 << _PAGE_NO_EXEC_SHIFT) != 0'? [-Werror,-Wint-in-bool-context]
        if (!cpu_has_rixi || !_PAGE_NO_EXEC) {
                              ^
./arch/mips/include/asm/pgtable-bits.h:174:28: note: expanded from macro '_PAGE_NO_EXEC'
# define _PAGE_NO_EXEC          (1 << _PAGE_NO_EXEC_SHIFT)
                                   ^

--
Regards
Sudip