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MIPS: net: BPF: Replace RSIZE with SZREG
The RSZIE was used to determine the register width but MIPS already defines SZREG so use that instead. Cc: netdev@vger.kernel.org Cc: "David S. Miller" <davem@davemloft.net> Cc: Alexei Starovoitov <ast@plumgrid.com> Cc: Daniel Borkmann <dborkman@redhat.com> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: linux-kernel@vger.kernel.org Cc: linux-mips@linux-mips.org Cc: netdev@vger.kernel.org Patchwork: http://patchwork.linux-mips.org/patch/10526/ Signed-off-by: Markos Chandras <markos.chandras@imgtec.com> Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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1 changed files with 14 additions and 14 deletions
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@ -20,6 +20,7 @@
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#include <linux/string.h>
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#include <linux/slab.h>
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#include <linux/types.h>
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#include <asm/asm.h>
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#include <asm/bitops.h>
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#include <asm/cacheflush.h>
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#include <asm/cpu-features.h>
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@ -60,7 +61,6 @@
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* ----------------------------------------------------
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*/
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#define RSIZE (sizeof(unsigned long))
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#define ptr typeof(unsigned long)
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/* ABI specific return values */
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@ -576,12 +576,12 @@ static void save_bpf_jit_regs(struct jit_ctx *ctx, unsigned offset)
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/* Argument save area */
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if (config_enabled(CONFIG_64BIT))
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/* Bottom of current frame */
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real_off = align_sp(offset) - RSIZE;
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real_off = align_sp(offset) - SZREG;
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else
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/* Top of previous frame */
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real_off = align_sp(offset) + RSIZE;
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real_off = align_sp(offset) + SZREG;
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emit_store_stack_reg(MIPS_R_A0, r_sp, real_off, ctx);
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emit_store_stack_reg(MIPS_R_A1, r_sp, real_off + RSIZE, ctx);
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emit_store_stack_reg(MIPS_R_A1, r_sp, real_off + SZREG, ctx);
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real_off = 0;
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}
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@ -592,7 +592,7 @@ static void save_bpf_jit_regs(struct jit_ctx *ctx, unsigned offset)
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if ((sflags >> i) & 0x1) {
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emit_store_stack_reg(MIPS_R_S0 + i, r_sp, real_off,
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ctx);
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real_off += RSIZE;
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real_off += SZREG;
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}
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i++;
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tmp_flags >>= 1;
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@ -601,13 +601,13 @@ static void save_bpf_jit_regs(struct jit_ctx *ctx, unsigned offset)
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/* save return address */
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if (ctx->flags & SEEN_CALL) {
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emit_store_stack_reg(r_ra, r_sp, real_off, ctx);
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real_off += RSIZE;
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real_off += SZREG;
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}
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/* Setup r_M leaving the alignment gap if necessary */
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if (ctx->flags & SEEN_MEM) {
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if (real_off % (RSIZE * 2))
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real_off += RSIZE;
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if (real_off % (SZREG * 2))
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real_off += SZREG;
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emit_long_instr(ctx, ADDIU, r_M, r_sp, real_off);
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}
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}
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@ -621,12 +621,12 @@ static void restore_bpf_jit_regs(struct jit_ctx *ctx,
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if (ctx->flags & SEEN_CALL) {
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if (config_enabled(CONFIG_64BIT))
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/* Bottom of current frame */
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real_off = align_sp(offset) - RSIZE;
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real_off = align_sp(offset) - SZREG;
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else
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/* Top of previous frame */
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real_off = align_sp(offset) + RSIZE;
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real_off = align_sp(offset) + SZREG;
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emit_load_stack_reg(MIPS_R_A0, r_sp, real_off, ctx);
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emit_load_stack_reg(MIPS_R_A1, r_sp, real_off + RSIZE, ctx);
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emit_load_stack_reg(MIPS_R_A1, r_sp, real_off + SZREG, ctx);
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real_off = 0;
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}
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@ -638,7 +638,7 @@ static void restore_bpf_jit_regs(struct jit_ctx *ctx,
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if ((sflags >> i) & 0x1) {
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emit_load_stack_reg(MIPS_R_S0 + i, r_sp, real_off,
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ctx);
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real_off += RSIZE;
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real_off += SZREG;
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}
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i++;
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tmp_flags >>= 1;
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@ -658,7 +658,7 @@ static unsigned int get_stack_depth(struct jit_ctx *ctx)
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/* How may s* regs do we need to preserved? */
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sp_off += hweight32(ctx->flags >> SEEN_SREG_SFT) * RSIZE;
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sp_off += hweight32(ctx->flags >> SEEN_SREG_SFT) * SZREG;
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if (ctx->flags & SEEN_MEM)
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sp_off += 4 * BPF_MEMWORDS; /* BPF_MEMWORDS are 32-bit */
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@ -674,7 +674,7 @@ static unsigned int get_stack_depth(struct jit_ctx *ctx)
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* this space ourselves. We need to preserve $ra as well.
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*/
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sp_off += config_enabled(CONFIG_64BIT) ?
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(ARGS_USED_BY_JIT + 1) * RSIZE : RSIZE;
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(ARGS_USED_BY_JIT + 1) * SZREG : SZREG;
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return sp_off;
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}
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