From: Leonardo Bras <leobras@redhat.com>
To: "Paul Walmsley" <paul.walmsley@sifive.com>,
"Palmer Dabbelt" <palmer@dabbelt.com>,
"Albert Ou" <aou@eecs.berkeley.edu>,
"Eric Biederman" <ebiederm@xmission.com>,
"Kees Cook" <keescook@chromium.org>,
"Oleg Nesterov" <oleg@redhat.com>,
"Leonardo Bras" <leobras@redhat.com>,
"Guo Ren" <guoren@kernel.org>, "Andy Chiu" <andy.chiu@sifive.com>,
"Conor Dooley" <conor.dooley@microchip.com>,
"Xiao Wang" <xiao.w.wang@intel.com>,
"Vincent Chen" <vincent.chen@sifive.com>,
"Charlie Jenkins" <charlie@rivosinc.com>,
"Greg Ungerer" <gerg@kernel.org>,
"Andrew Morton" <akpm@linux-foundation.org>,
"Kemeng Shi" <shikemeng@huaweicloud.com>,
"Alexandre Ghiti" <alexghiti@rivosinc.com>,
"David Hildenbrand" <david@redhat.com>,
"Matthew Wilcox (Oracle)" <willy@infradead.org>,
"Qinglin Pan" <panqinglin2020@iscas.ac.cn>,
"Greentime Hu" <greentime.hu@sifive.com>,
"Baoquan He" <bhe@redhat.com>,
"Clément Léger" <cleger@rivosinc.com>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org
Subject: [PATCH v1 2/5] riscv: Replace direct thread flag check with is_compat_task()
Date: Wed, 3 Jan 2024 13:00:20 -0300 [thread overview]
Message-ID: <20240103160024.70305-4-leobras@redhat.com> (raw)
In-Reply-To: <20240103160024.70305-2-leobras@redhat.com>
There is some code that detects compat mode into a task by checking the
flag directly, and other code that check using the helper is_compat_task().
Since the helper already exists, use it instead of checking the flags
directly.
Signed-off-by: Leonardo Bras <leobras@redhat.com>
---
arch/riscv/include/asm/elf.h | 2 +-
arch/riscv/include/asm/pgtable.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/riscv/include/asm/elf.h b/arch/riscv/include/asm/elf.h
index 06c236bfab53b..59a08367fddd7 100644
--- a/arch/riscv/include/asm/elf.h
+++ b/arch/riscv/include/asm/elf.h
@@ -54,7 +54,7 @@ extern bool compat_elf_check_arch(Elf32_Ehdr *hdr);
#ifdef CONFIG_64BIT
#ifdef CONFIG_COMPAT
-#define STACK_RND_MASK (test_thread_flag(TIF_32BIT) ? \
+#define STACK_RND_MASK (is_compat_task() ? \
0x7ff >> (PAGE_SHIFT - 12) : \
0x3ffff >> (PAGE_SHIFT - 12))
#else
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h
index ab00235b018f8..1d472b31e0cfe 100644
--- a/arch/riscv/include/asm/pgtable.h
+++ b/arch/riscv/include/asm/pgtable.h
@@ -882,7 +882,7 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte)
#ifdef CONFIG_COMPAT
#define TASK_SIZE_32 (_AC(0x80000000, UL) - PAGE_SIZE)
-#define TASK_SIZE (test_thread_flag(TIF_32BIT) ? \
+#define TASK_SIZE (is_compat_task() ? \
TASK_SIZE_32 : TASK_SIZE_64)
#else
#define TASK_SIZE TASK_SIZE_64
--
2.43.0
next prev parent reply other threads:[~2024-01-03 16:01 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-01-03 16:00 [PATCH v1 0/5] riscv: Introduce compat-mode helpers & improve arch_get_mmap_end() Leonardo Bras
2024-01-03 16:00 ` [PATCH v1 1/5] riscv: Improve arch_get_mmap_end() macro Leonardo Bras
2024-01-03 16:00 ` Leonardo Bras [this message]
2024-01-03 16:00 ` [PATCH v1 3/5] riscv: add compile-time test into is_compat_task() Leonardo Bras
2024-01-03 16:00 ` [PATCH v1 4/5] riscv: Introduce is_compat_thread() into compat.h Leonardo Bras
2024-01-03 16:00 ` [PATCH v1 5/5] riscv: Introduce set_compat_task() in asm/compat.h Leonardo Bras
2024-03-20 20:50 ` [PATCH v1 0/5] riscv: Introduce compat-mode helpers & improve arch_get_mmap_end() patchwork-bot+linux-riscv
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