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Rao" , Steven Rostedt , Ingo Molnar , Benjamin Herrenschmidt , Paul Mackerras , Michael Ellerman Subject: [PATCH v1 11/22] powerpc/ftrace: Remove ftrace_plt_tramps[] Date: Thu, 24 Mar 2022 15:30:01 +0100 Message-Id: <28451f97a8cdb81df3815e782cbf7667cb3fc2e1.1648131740.git.christophe.leroy@csgroup.eu> X-Mailer: git-send-email 2.35.1 In-Reply-To: References: MIME-Version: 1.0 X-Developer-Signature: v=1; a=ed25519-sha256; t=1648132151; l=1209; s=20211009; h=from:subject:message-id; bh=dZRIRMj2lQWqilcKJIhxE8xIuJIJKrLrXF3bOa75tG0=; b=Jm5S2lkZJ1ZbTPIGJG7ai1Ps7p6F+hBFwYko30rigipKhirNyFtFQvkWB6tNmfeC4t7ZlaS23HZD 62dwgV8LCupttGxc6AWPs0dK5+GiO6zES0ugxRwoeux3OsVhTHVs X-Developer-Key: i=christophe.leroy@csgroup.eu; a=ed25519; pk=HIzTzUj91asvincQGOFx6+ZF5AoUuP9GdOtQChs7Mm0= X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org Errors-To: linuxppc-dev-bounces+incoming=patchwork.ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" ftrace_plt_tramps table is never filled so it is useless. Remove it. Signed-off-by: Christophe Leroy --- arch/powerpc/kernel/trace/ftrace.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/arch/powerpc/kernel/trace/ftrace.c b/arch/powerpc/kernel/trace/ftrace.c index 188f59f4ee4a..b6c5223e26b2 100644 --- a/arch/powerpc/kernel/trace/ftrace.c +++ b/arch/powerpc/kernel/trace/ftrace.c @@ -250,7 +250,6 @@ static int setup_mcount_compiler_tramp(unsigned long tramp) int i; ppc_inst_t op; unsigned long ptr; - static unsigned long ftrace_plt_tramps[NUM_FTRACE_TRAMPS]; /* Is this a known long jump tramp? */ for (i = 0; i < NUM_FTRACE_TRAMPS; i++) @@ -259,13 +258,6 @@ static int setup_mcount_compiler_tramp(unsigned long tramp) else if (ftrace_tramps[i] == tramp) return 0; - /* Is this a known plt tramp? */ - for (i = 0; i < NUM_FTRACE_TRAMPS; i++) - if (!ftrace_plt_tramps[i]) - break; - else if (ftrace_plt_tramps[i] == tramp) - return -1; - /* New trampoline -- read where this goes */ if (copy_inst_from_kernel_nofault(&op, (void *)tramp)) { pr_debug("Fetching opcode failed.\n");