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[61.68.212.105]) by smtp.gmail.com with ESMTPSA id a19sm3208848pfn.10.2020.08.26.07.33.10 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 26 Aug 2020 07:33:10 -0700 (PDT) Date: Thu, 27 Aug 2020 00:33:05 +1000 From: Nicholas Piggin Subject: Re: [PATCH 14/24] openrisc: use asm-generic/mmu_context.h for no-op implementations To: Stafford Horne Cc: Arnd Bergmann , Jonas Bonn , linux-arch@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, openrisc@lists.librecores.org, Stefan Kristiansson References: <20200728033405.78469-1-npiggin@gmail.com> <20200728033405.78469-15-npiggin@gmail.com> <20200729114554.GG80756@lianli.shorne-pla.net> In-Reply-To: <20200729114554.GG80756@lianli.shorne-pla.net> MIME-Version: 1.0 Message-Id: <1598452354.xwvdyvp4t6.astroid@bobo.none> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Rspamd-Queue-Id: D3AA018038E68 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam02 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Excerpts from Stafford Horne's message of July 29, 2020 9:45 pm: > On Tue, Jul 28, 2020 at 01:33:55PM +1000, Nicholas Piggin wrote: >> Cc: Jonas Bonn >> Cc: Stefan Kristiansson >> Cc: Stafford Horne >> Cc: openrisc@lists.librecores.org >> Signed-off-by: Nicholas Piggin >> --- >> arch/openrisc/include/asm/mmu_context.h | 8 +++----- >> arch/openrisc/mm/tlb.c | 2 ++ >> 2 files changed, 5 insertions(+), 5 deletions(-) >>=20 >> diff --git a/arch/openrisc/include/asm/mmu_context.h b/arch/openrisc/inc= lude/asm/mmu_context.h >> index ced577542e29..a6702384c77d 100644 >> --- a/arch/openrisc/include/asm/mmu_context.h >> +++ b/arch/openrisc/include/asm/mmu_context.h >> @@ -17,13 +17,13 @@ >> =20 >> #include >> =20 >> +#define init_new_context init_new_context >> extern int init_new_context(struct task_struct *tsk, struct mm_struct *= mm); >> +#define destroy_context destroy_context >> extern void destroy_context(struct mm_struct *mm); >> extern void switch_mm(struct mm_struct *prev, struct mm_struct *next, >> struct task_struct *tsk); >> =20 >> -#define deactivate_mm(tsk, mm) do { } while (0) >> - >> #define activate_mm(prev, next) switch_mm((prev), (next), NULL) >> =20 >> /* current active pgd - this is similar to other processors pgd >> @@ -32,8 +32,6 @@ extern void switch_mm(struct mm_struct *prev, struct m= m_struct *next, >> =20 >> extern volatile pgd_t *current_pgd[]; /* defined in arch/openrisc/mm/fa= ult.c */ >> =20 >> -static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_str= uct *tsk) >> -{ >> -} >> +#include >=20 > This looks ok. >=20 >> #endif >> diff --git a/arch/openrisc/mm/tlb.c b/arch/openrisc/mm/tlb.c >> index 4b680aed8f5f..821aab4cf3be 100644 >> --- a/arch/openrisc/mm/tlb.c >> +++ b/arch/openrisc/mm/tlb.c >> @@ -159,6 +159,7 @@ void switch_mm(struct mm_struct *prev, struct mm_str= uct *next, >> * instance. >> */ >> =20 >> +#define init_new_context init_new_context >> int init_new_context(struct task_struct *tsk, struct mm_struct *mm) >> { >> mm->context =3D NO_CONTEXT; >> @@ -170,6 +171,7 @@ int init_new_context(struct task_struct *tsk, struct= mm_struct *mm) >> * drops it. >> */ >> =20 >> +#define destroy_context destroy_context >> void destroy_context(struct mm_struct *mm) >> { >> flush_tlb_mm(mm); >=20 > I don't think we need the #define's in the .c file. Do we? You're right, I fixed that and the same issue in another arch. Thanks, Nick