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Commit 87613bb9 authored by Helge Deller's avatar Helge Deller
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parisc: Use LINUX_GATEWAY_SPACE constant in entry.S 



Use and mention the predefined LINUX_GATEWAY_SPACE constant in the
various important code sections which deal with the gateway page.

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
parent 9a298b44

arch/parisc/kernel/entry.S

+3 −2
Original line number Diff line number Diff line
@@ -394,6 +394,7 @@ 
	*/

	.macro		space_check	spc,tmp,fault

	mfsp		%sr7,\tmp

	/* check against %r0 which is same value as LINUX_GATEWAY_SPACE */

	or,COND(<>)	%r0,\spc,%r0	/* user may execute gateway page

					 * as kernel, so defeat the space

					 * check if it is */
@@ -910,9 +911,9 @@ intr_check_sig: 
	 * Only do signals if we are returning to user space

	 */

	LDREG	PT_IASQ0(%r16), %r20

	cmpib,COND(=),n 0,%r20,intr_restore /* backward */

	cmpib,COND(=),n LINUX_GATEWAY_SPACE, %r20, intr_restore /* backward */

	LDREG	PT_IASQ1(%r16), %r20

	cmpib,COND(=),n 0,%r20,intr_restore /* backward */

	cmpib,COND(=),n LINUX_GATEWAY_SPACE, %r20, intr_restore /* backward */



	/* NOTE: We need to enable interrupts if we have to deliver

	 * signals. We used to do this earlier but it caused kernel