Message ID | 20171211125025.2270-2-sergey.senozhatsky@gmail.com |
---|---|
State | New |
Headers | show
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bh=qEl0K9sqaOmfhtH32mtnqlXxAi4hxaJLTXG2CRK0DY0=; b=mcnRspNgHZFlUuziVD7YN4MAS/p14JA9gKi6p1oflSfXr6sla0mp2urEYfoDQkFoH1 9DYDPoSQ/CppvT5rQmtyd3Z1NKsIHJ8aVcsY7ydvlBPfK6KrsI2gSBs53BNs/eWObMnc 5cWJHQdmlX8uBZ41ZRzDI71+H+DQlGiA+4IM0WD8gMepfEVZeU9Sx6q7irMLlViJ9OIH pY1YE5N9XM9HTOy8HlN3cLXjmt1CePRnuHpJHtq8R3WRimc7CH7IhJpXp5HaTwIYO48h OuvikJrqe2FnFU9Y3x9yPrq1XexB/gx7G+B6JFg1/sCVcrcAnx9gpVNntX/VdjqVvD+7 K6wA== X-Gm-Message-State: AKGB3mJKHiuQzgHzFdXs8IzEVP8zFnJRbFaDnyXB6Nvssm6gVVU5CERl xmd388NlMNZaTKVKfana7Xc= X-Google-Smtp-Source: ACJfBoscWkyON9fHwn1GObZVuvq1trcTJ0uXrie25USGAN+GAOpoE54kcHdj86NwsGc2oILoaWt2pA== X-Received: by 10.84.231.1 with SMTP id f1mr282452plk.352.1512996654615; Mon, 11 Dec 2017 04:50:54 -0800 (PST) Received: from localhost.localdomain ([110.70.53.61]) by smtp.gmail.com with ESMTPSA id j13sm23374380pff.131.2017.12.11.04.50.43 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 11 Dec 2017 04:50:53 -0800 (PST) From: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com> X-Google-Original-From: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> To: Andrew Morton <akpm@linux-foundation.org>, Russell King <linux@armlinux.org.uk>, Catalin Marinas <catalin.marinas@arm.com>, Mark Salter <msalter@redhat.com>, Tony Luck <tony.luck@intel.com>, David Howells <dhowells@redhat.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, Guan Xuetao <gxt@mprc.pku.edu.cn>, Borislav Petkov <bp@alien8.de>, Greg Kroah-Hartman <gregkh@linuxfoundation.org>, Thomas Gleixner <tglx@linutronix.de>, Peter Zijlstra <peterz@infradead.org>, Vineet Gupta <vgupta@synopsys.com>, Fengguang Wu <fengguang.wu@intel.com> Subject: [PATCH 01/13] arm: do not use print_symbol() Date: Mon, 11 Dec 2017 21:50:13 +0900 Message-Id: <20171211125025.2270-2-sergey.senozhatsky@gmail.com> X-Mailer: git-send-email 2.15.1 In-Reply-To: <20171211125025.2270-1-sergey.senozhatsky@gmail.com> References: <20171211125025.2270-1-sergey.senozhatsky@gmail.com> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20171211_045116_526943_63604A03 X-CRM114-Status: UNSURE ( 9.18 ) X-CRM114-Notice: Please train this message. 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Series |
replace print_symbol() with printk()-s
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expand
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diff --git a/arch/arm/kernel/process.c b/arch/arm/kernel/process.c index d96714e1858c..db004f6f547a 100644 --- a/arch/arm/kernel/process.c +++ b/arch/arm/kernel/process.c @@ -21,7 +21,6 @@ #include <linux/unistd.h> #include <linux/user.h> #include <linux/interrupt.h> -#include <linux/kallsyms.h> #include <linux/init.h> #include <linux/elfcore.h> #include <linux/pm.h> @@ -121,8 +120,8 @@ void __show_regs(struct pt_regs *regs) show_regs_print_info(KERN_DEFAULT); - print_symbol("PC is at %s\n", instruction_pointer(regs)); - print_symbol("LR is at %s\n", regs->ARM_lr); + printk("PC is at %pS\n", instruction_pointer(regs)); + printk("LR is at %pS\n", (void *)regs->ARM_lr); printk("pc : [<%08lx>] lr : [<%08lx>] psr: %08lx\n", regs->ARM_pc, regs->ARM_lr, regs->ARM_cpsr); printk("sp : %08lx ip : %08lx fp : %08lx\n",
print_symbol() uses extra stack space to sprintf() symbol information and then to feed that buffer to printk() char buffer[KSYM_SYMBOL_LEN]; sprint_symbol(buffer, address); printk(fmt, buffer); Replace print_symbol() with a direct printk("%pS") call. Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com> Cc: Russell King <linux@armlinux.org.uk> --- arch/arm/kernel/process.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-)